Risk Evaluation for Methylene Chloride (Dichloromethane, DCM) Systematic Review Supplemental File: Data Quality Evaluation of Environmental Release and Occupational Exposure Data CASRN: 75-09-2


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Risk Evaluation for Methylene Chloride
(Dichloromethane, DCM)
Systematic Review Supplemental File:
Data Quality Evaluation of
Environmental Release and Occupational Exposure Data
xvEPA
United States
Environmental Protection Agency
Office of Chemical Safety and
Pollution Prevention
CASRN: 75-09-2
H
October 2019

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This document is a compilation of tables for the data extraction and evaluation for
Methylene Chloride (Dichloromethane, DCM) . Each table shows the data point or set or
information element that was extracted and evaluated from a data source in accordance with
Appendix D of the Application of Systematic Review in TSCA Risk Evaluations. If the source
contains more than one data set or information element, the review provides an overall
confidence score for each data set or information element that is found in the source. Therefore,
it is possible that a source may have more than one overall quality/confidence score.
Table of Contents
Page
Releases to the Environment
Occupational Exposure
Facility
3
57
365
Explanatory Notes
These explanatory notes provide context to understand the short comments in the data evaluation tables.
Domain
Metric
Description of Comments Field
Reliability
Methodology
Indicates the sampling/analytical methodology, estimation method, or
type of publication
Repre sentativene ss
Geographic Scope
Indicates the country of the study, publication, or underlying data
Applicability
Indicates whether the data are for a condition of use within scope of the
Risk Evaluation
Temporal Representativeness
Provides the year of study, publication, or underlying data
Sample Size
Describes the distribution of the sample or underlying data
Accessibility / Clarity
Metadata Completeness
Describes the completeness of the metadata
Variability and Uncertainty
Metadata Completeness
Indicates if study or publication addresses variability and uncertainty of
the data or information
2

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Releases to the Environment
3

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Source Citation:	2014. Toxic release inventory: Dichloro-methane.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3860461
EXTRACTION
Parameter	Data
Life Cycle Stage:
Release Source:
Environmental Media:
Release Estimation Method:
Annual Release Quantity (kg/yr):
Disposal
All
Annual release estimates for UI, landfills, fugitive air, surface water.
Reported
135,396 lb/yr to Class I Wells; 16,212 lb/yr to RCRA Subtitle C land-
fills, 54 lb/yr to other on-site landfills; 1,346,811 lb/yr to fugitive air;
1,607,512 lb/yr from point sources; 24,567 lb/yr to surface water; 2,677
lb/yr to other land disposal.
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
EPA Source
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
High
X 1
x 2
x 2
x 1
1
2
2
1
US
Overal releases
2014
Direcly reported data to EPA
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Data provided by site on an annual basis only
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

1.7

* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
4

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Source Citation: Chemistry Industry Association of, Canada. 2017. All substances emissions for 2012 and projections for 2015.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 3982361
EXTRACTION
Parameter
Data
Life Cycle Stage:
Environmental Media:
Release Estimation Method:
Annual Release Quantity (kg/yr):
Number of Sites:
Processing
not specified
Estimated
0 tonnes/yr
1
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
not specified
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
Medium
High
Low
X 1
x 2
x 2
x 1
2
4
2
3
Canada
Warehouse
2012
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Unacceptable
x 1
4
no media of release
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.3.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
5

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Source Citation: Chemistry Industry Association of, Canada. 2017. All substances emissions for 2011 and projections for 2014.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 3982362
EXTRACTION
Parameter
Data
Life Cycle Stage:
Environmental Media:
Release Estimation Method:
Annual Release Quantity (kg/yr):
Number of Sites:
Processing/Use
not specified
Estimated
0.02 tonnes/yr
3
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
not specified
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
Medium
High
Low
X 1
x 2
x 2
x 1
2
4
2
3
Canada
Warehouse; industrial site(s)
2011
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Unacceptable
x 1
4
no media of release
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Unacceptable

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Source Citation:	Osha,. 1997. Occupational exposure to methylene chloride: Section 9 - IX. Environmental impact.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978297
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Use
Polyurethane foam manufacturing
Polyurethane foam manufacturing
air
1
Estimated
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low X 1	3 OSHA Preamble to Final Rules - Environmental Impact Sec-
tion
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Polyurethane foam manufacturing
Metric 4:
Temporal Representativeness
Low
X
2
6
1997
Metric 5:
Sample Size
Low
X
1
3
no sample size data
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
only includes release media
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination1
Low


2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
7

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Source Citation:	Osha,. 1997. Occupational exposure to methylene chloride: Section 9 - IX. Environmental impact.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978297
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Paint Stripping
Release Source:	Paint Stripping
Environmental Media:	air
Release or Emission Factor:	1
Release Estimation Method:	Estimated
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low X 1	3 OSHA Preamble to Final Rules - Environmental Impact Sec-
tion
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Paint Stripping
Metric 4:
Temporal Representativeness
Low
X
2
6
1997
Metric 5:
Sample Size
Low
X
1
3
no sample size data
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
only includes release media
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination1
Low


2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

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Source Citation:	Osha,. 1997. Occupational exposure to methylene chloride: Section 9 - IX. Environmental impact.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978297
EXTRACTION
Parameter	Data
Life Cycle Stage:	Processing
Life Cycle Description (Subcategory of Use):	Solvent Recovery
Release Source:	Solvent Recovery
Environmental Media:	air
Release or Emission Factor:	<1 percent
Release Estimation Method:	Estimated
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low X 1	3 OSHA Preamble to Final Rules - Environmental Impact Sec-
tion
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Solvent Recovery
Metric 4:
Temporal Representativeness
Low
X
2
6
1997
Metric 5:
Sample Size
Low
X
1
3
no sample size data
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
only includes release media
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination1
Low


2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
9

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Source Citation:	Osha,. 1997. Occupational exposure to methylene chloride: Section 9 - IX. Environmental impact.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978297
EXTRACTION
Parameter	Data
Life Cycle Stage:	Manufacture
Life Cycle Description (Subcategory of Use):	Manufacture of DCM
Release Source:	Manufacture of DCM
Environmental Media:	air
Release or Emission Factor:	<1 percent
Release Estimation Method:	Estimated
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low X 1	3 OSHA Preamble to Final Rules - Environmental Impact Sec-
tion
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Manufacture of DCM
Metric 4:
Temporal Representativeness
Low
X
2
6
1997
Metric 5:
Sample Size
Low
X
1
3
no sample size data
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
only includes release media
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination1
Low


2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
10

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Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Polyurethane Foam Blowing
Release Source:	Polyurethane Foam Blowing
Environmental Media:	air
Release or Emission Factor:	1
Release Estimation Method:	Estimated
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
OSHA - Proposed Rules
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Polyurethane Foam Blowing
1997
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3


* MWF = Metric Weighting Factor
r If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
11

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Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Use
Aerosols
Aerosols
air
unknown during packing; 100 percent release during consumer use
Estimated
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
OSHA - Proposed Rules
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Aerosols
1997
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3


* MWF = Metric Weighting Factor
r If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
12

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Polycarbonate Resin
Release Source:	Polycarbonate Resin
Environmental Media:	air
Release or Emission Factor:	7,000,000 lb/yr released
Release Estimation Method:	Estimated
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
OSHA - Proposed Rules
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Polycarbonate Resin
1997
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3


* MWF = Metric Weighting Factor
r If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
13

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Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Processing
Pharmaceuticals
Pharmaceuticals
air
43 percent released and 57 percent recovered and processed for use
Estimated
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
OSHA - Proposed Rules
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
P harmaceuticals
1997
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3


* MWF = Metric Weighting Factor
r If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
14

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Paints and Coatings
Release Source:	Paints and Coatings
Environmental Media:	air
Release or Emission Factor:	1
Release Estimation Method:	Estimated
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
OSHA - Proposed Rules
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Paints and Coatings
1997
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3


* MWF = Metric Weighting Factor
r If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
15

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Use
Cellulose Triacetate and Film Base Production
Cellulose Triacetate and Film Base Production
air
4,500,000 lb/yr
Estimated
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
OSHA - Proposed Rules
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Cellulose Triacetate and Film Base Production
1997
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3


* MWF = Metric Weighting Factor
r If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
16

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Electronics
Release Source:	Electronics
Environmental Media:	air
Release or Emission Factor:	1
Release Estimation Method:	Estimated
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
OSHA - Proposed Rules
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Electronics
1997
no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3


* MWF = Metric Weighting Factor
r If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
17

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Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Manufacture
Manufacture of DCM
Manufacture of DCM
air
<1 percent compared to the use of DCM in 1995
Estimated
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
Medium x 1
Refers to Tukker et al. 1995
Domain 2: Representative
Metric 2
Metric 3
Metric 4
Metric 5
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium	x 1
High	x 2
Low	x 2
Low	x 1
2	OECD
2	Manufacture of DCM
6	1995
3	no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	x 1	3 only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3 No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
18

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Use
Paint Stripping
Paint Stripping
85-90 percent to air; 10-15 percent to waste
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Refers to Tukker et al. 1995
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
OECD
Metric 3:
Applicability
High
x 2
2
Paint Stripping
Metric 4:
Temporal Representativeness
Low
x 2
6
1991
Metric 5:
Sample Size
Low
x 1
3
no sample size data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
19

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Use
Adhesives
Adhesives
air
1
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Refers to Tukker et al. 1995
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
OECD
Metric 3:
Applicability
High
x 2
2
Adhesives
Metric 4:
Temporal Representativeness
Low
x 2
6
1995
Metric 5:
Sample Size
Low
x 1
3
no sample size data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
20

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Use
Aerosols
Aerosols
air
1
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
European Commission Report
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
OECD
Metric 3:
Applicability
High
x 2
2
Aerosols
Metric 4:
Temporal Representativeness
Low
x 2
6
unknown
Metric 5:
Sample Size
Low
x 1
3
no sample size data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
21

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Use
Pharmaceuticals
Pharmaceuticals
55 percent to air; 44 percent discharge with waste; 1 percent to water
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Refers to Tukker et al. 1995
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
OECD
Metric 3:
Applicability
High
x 2
2
Pharmaceuticals
Metric 4:
Temporal Representativeness
Low
x 2
6
1995
Metric 5:
Sample Size
Low
x 1
3
no sample size data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
22

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Use
Other chemical processing (solvent in polycarbonate; blowing agent in
PUR)
Other chemical processing (solvent in polycarbonate; blowing agent in
PUR)
0.2 percent to water; 64.8 percent to air; 35 percent to waste
EVALUATION
Domain Metric
Rating MWF* Score Comments
Domain 1: Reliability
Metric 1: Methodology
Medium X 1 2 Refers to Tukker et al. 1995
Domain 2: Representative
Metric 2: Geographic Scope
Metric 3: Applicability
Medium x 1
High x 2
Metric 4: Temporal Representativeness Low	x 2
Metric 5: Sample Size	Low	x 1
2 OECD
2	Other chemical processing (solvent in polycarbonate; blowing
agent in PUR)
6 1995
3	no sample size data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3 only includes release media
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3 No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3

* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
23

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Use
Degreasing
Degreasing
0.3 percent to water; 57.7 percent to air; 42 percent to waste
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Refers to van der Most 1993
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
OECD
Metric 3:
Applicability
High
x 2
2
Degreasing
Metric 4:
Temporal Representativeness
Low
x 2
6
1993
Metric 5:
Sample Size
Low
x 1
3
no sample size data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
24

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Food extraction
Release Source:	Food extraction
Environmental Media:	100 percent to air
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Refers to UBA 1991
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
OECD
Metric 3:
Applicability
High
x 2
2
Food extraction
Metric 4:
Temporal Representativeness
Low
x 2
6
1991
Metric 5:
Sample Size
Low
x 1
3
no sample size data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
only includes release media
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^	Low	2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
25

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Kikuchi, E. mi,Kikuchi, Y.,Hirao, M.. 2012. Monitoring and Analysis of Solvent Emissions from Metal Cleaning Processes for
Practical Process Improvement. Annals of Occupational Hygiene.
Type of Data Source Releases to the Environment; Published Models for Exposures or Releases;
Hero ID	2128076
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Use
Open top vapor degreasing
Open top vapor degreasing
air
various rate of solvent diffusion (kg/m-s)
calculated curves based on data
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Medium
X 1
2
Journal article
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
High
High
N/A
X 1
x 2
x 2
2
2
2
N/A
Japan
Vapor Degreasing
2011
modeling approach - no sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
modeling air releases
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
x 1
2
error bars included but no discussion
Overall Quality Determination^	High	1.6
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
26

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	1994. Chemical summary for methylene chloride (dichloromethane).
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3860545
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Disposal /Treatment Method:
Environmental Media:
Release or Emission Factor:
EPA Chemical Summary
Varies
Varies
Varies
Air
Varies
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
High x 1
EPA - though there is a line that states: No attempt has been
made to verify information in these databases and secondary
sourced.
Domain 2: Representative
Metric 2:	Geographic Scope	High	x 1	1
Metric 3:	Applicability	Low	x 2	6
Metric 4:	Temporal Representativeness	Low	x 2	6
Metric 5:	Sample Size	Low	x 1	3
US
Overview of the DCM, production use, fate, etc.
1994, 24 years old
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3 No Comment.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3 No Comment.
Overall Quality Determination^
Low

2.6

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
27

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Atsdr,. 2006. Health consultation: Historical outdoor air emissions in the Endicott area: International Business Machines
Corporation (IBM): Village of Endicott, Broome County, New York EPA facility ID: NYD002233039, Part 2.
Type of Data Source Releases to the Environment; Completed Exposure or Risk Assessments;
Hero ID	3978093
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Release Days per Year:
Number of Sites:
Use
electronics manufacturing
fugitive and stack
Air
Varies
calculated based on historic facility use data
continuous
1
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Agency for Toxic Substances and Disease Registry (ATSDR)
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Low
x 2
6
Overview and analysis of historical DCM release into the en-





vironment
Metric 4:
Temporal Representativeness
Medium
x 2
4
2006, 12 years old
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
Clearly documents sources, methods, and assumptions
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
High
x 1
1
Discusses limitations and uncertainty in data.
Overall Quality Determination^
Medium

1.9


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
28

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Erg,. 2008. LCI summary for six tuna packaging systems.
Type of Data Source Releases to the Environment; Reports for Data or Information Other than Exposure or Release Data;
Hero ID 3978168
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Environmental Media:
Annual Release Quantity (kg/yr):
Use
Food Production
Air
0.000043 to 0.0015 lbs/100,000 ounces
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X
1
1
Franklin Associates/ERG
Domain 2: Representative

Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Unacceptable
X
2
8
Not quite relevant. Only addresses atmospheric emisssions of

Methylene Chloride
Metric 4:
Temporal Representativeness
Medium
X
2
4
2008, 10 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Medium
X
1
2
Data is generally well documented.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Medium
X
1
2
Limited Discussion of uncertainty
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.3.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1993. Locating and estimating air emissions from sources of methylene chloride.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3970168
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Number of Sites:
Manufacture
Methane Chlorination
Inert Gas purge vent product recover condenser
Air
0.28 lb/ton produced
5
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Medium x 1	2 Method was referenced in citation: XATEF database
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that produces Methylene Chloride
Metric 4:
Temporal Representativeness
Low
X
2
6
1993, 25 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 Basic Metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No addressed
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
30

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1993. Locating and estimating air emissions from sources of methylene chloride.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3970168
EXTRACTION
Parameter	Data
Life Cycle Stage:	Manufacture
Life Cycle Description (Subcategory of Use):	Methane Chlorination
Release Source:	Storage
Environmental Media:	Air
Release or Emission Factor:	2.04 lb/ton produced
Number of Sites:	5
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Medium x 1	2 Method was referenced in citation: XATEF database
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that produces Methylene Chloride
Metric 4:
Temporal Representativeness
Low
X
2
6
1993, 25 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 Basic Metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No addressed
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
31

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1993. Locating and estimating air emissions from sources of methylene chloride.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3970168
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Number of Sites:
Manufacture
Methyl Chloride Chlorination
Inert Gas purge vent product recover condenser
Air
0.052 lb/ton produced
5
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Medium x 1	2 Method was referenced in citation: XATEF database
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that produces Methylene Chloride
Metric 4:
Temporal Representativeness
Low
X
2
6
1993, 25 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 Basic Metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No addressed
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
32

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1993. Locating and estimating air emissions from sources of methylene chloride.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3970168
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Number of Sites:
Manufacture
Methyl Chloride Chlorination
Storage
Air
4.92 lb/ton produced
5
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Medium x 1	2 Method was referenced in citation: XATEF database
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that produces Methylene Chloride
Metric 4:
Temporal Representativeness
Low
X
2
6
1993, 25 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 Basic Metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No addressed
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
33

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1993. Locating and estimating air emissions from sources of methylene chloride.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3970168
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Number of Sites:
Manufacture
Methylene Chloride Production
Entire Processs
Air
6 lb/ton produced
5
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Medium x 1	2 Method was referenced in citation: XATEF database
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that produces Methylene Chloride
Metric 4:
Temporal Representativeness
Low
X
2
6
1993, 25 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 Basic Metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No addressed
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
34

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1993. Locating and estimating air emissions from sources of methylene chloride.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3970168
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Number of Sites:
Manufacture
Wate Water Treatment
Publically owned treatment works
Air
1040 lb/ton produced
5
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Medium x 1	2 Method was referenced in citation: XATEF database
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that produces Methylene Chloride
Metric 4:
Temporal Representativeness
Low
X
2
6
1993, 25 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 Basic Metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No addressed
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
35

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	1991. Emissions of Metals and Organics from Municipal Wastewater Sludge Incinerators.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	1261227
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Number of Sites:
Disposal
Sludge Incinerator
Stacks
Air
.151-1.04 gram/hr
semi-VOST method (collected from flu-gas)
4
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
EPA Method was referenced in text.
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Medium
Low
Low
X 1
x 2
x 2
x 1
1
4
6
3
US
Workplace indirectly connected to Methylene Chloride
1987, 31 years old
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Majority of metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressed.
Overall Quality Determination^	Medium	2.2
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
36

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Chiang, H. L.,Lin, K. H.. 2014. Exhaust constituent emission factors of printed circuit board pyrolysis processes and its
exhaust control. Journal of Hazardous Materials.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 2232631
EXTRACTION

Parameter
Data
Life Cycle Stage:
Disposal
Life Cycle Description (Subcategory of Use):
PCB recycling
Release Source:
Exhaust
Environmental Media:
Air
Release or Emission Factor:
82-2010 ug/g PCB pyrolysis
Release Estimation Method:
Discussed, but not named.
EVALUATION

Domain Metric
Rating MWF* Score Comments
Domain 1: Reliability

Metric 1: Methodology
Medium X 1 2 Journal of Hazardous Materials - though no methods were

stated for DCM
Domain 2: Representative
Metric 2: Geographic Scope
Low
X
1
3
China
Metric 3: Applicability
Medium
X
2
4
Workplace indirectly connected to Methylene Chloride
Metric 4: Temporal Representativeness
High
X
2
2
2013, 5 years old
Metric 5: Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6: Metadata Completeness
Medium
X
1
2
Majority of metadata present
Domain 4: Variability and Uncertainty

Metric 7: Metadata Completeness
Medium
X
1
2
Some variability addressed in the results.
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
37

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Schuetz, C.,Bogner, J.,Chanton, J.,Blake, D.,Morcet, M.,Kjeldsen, P.. 2003. Comparative oxidation and net emissions of
methane and selected non-methane organic compounds in landfill cover soils. Environmental Science and Technology.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 2528560
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Release Days per Year:
Number of Sites:
Disposal
Landfill Emissions
Ambient Emissions
Air
700ug/L
Discussed, but not named.
365
1
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
Medium x 1
American Chemical Society Environmental Science and Tech-
nology - detailed description of process, but no statement of
method.
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US, predominantly. Lab work was done in the US.
Metric 3:
Applicability
Low
X
2
6
Workplace indirectly connected to Methylene Chloride
Metric 4:
Temporal Representativeness
Medium
X
2
4
2003, 15 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Medium
X
1
2
Majority of metadata present
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
X
1
3
None addressed.
Overall Quality Determination^ Low 2.3
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
38

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Cheng, W.,Hsu, S. K.,Chou, M. S.. 2008. Volatile organic compound emissions from wastewater treatment plants in Taiwan:
Legal regulations and costs of control. Journal of Environmental Management.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 2546404
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Disposal /Treatment Method:
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Disposal
Watewater Treatment
industrial effluent
Standard
Air/Water
ND-48.1 ug/L
EPA Method 8240B
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X 1
1
EPA Method 8240B
Domain 2: Representative

Metric 2:
Geographic Scope
Low
X 1
3
Taiwan
Metric 3:
Applicability
Medium
x 2
4
Workplace indirectly connected to Methylene Chloride
Metric 4:
Temporal Representativeness
Medium
x 2
4
2008, 10 years old
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Low
x 1
3
Lacking in critical metadata
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
None addressed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
39

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Zhang, K.. 2010. Characterization and Uncertainty Analysis of VOCs Emissions from Industrial Wastewater Treatment
Plants. Environmental Progress and Sustainable Energy.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	2630164
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release Estimation Method:
Daily Release Quantity (kg/day):
Release Days per Year:
Number of Sites:
Disposal
Industrial Wastewater Treatment
industrial effluent
Air/Water
WATER9 and TOXCHEM +V3
2.590 - 2.822 lb/day
365?
1
EVALUATION



Domain
Metric
Rating
MWF* Score Comments
Domain 1: Reliability



Metric 1:
Methodology
High
X 1 1 WATER9 and TOXCHEM +V3
Domain 2: Representative
Metric 2
Metric 3
Metric 4
Metric 5
Geographic Scope	High	x 1	1
Applicability	Medium	x 2	4
Temporal Representativeness	High	x 2	2
Sample Size	Low	x 1	3
US
Workplace indirectly connected to Methylene Chloride
2010, 8 years old
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 Majority of metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
High
x 1
1 Uncertainty in data/estimations is addressed in detail.
Overall Quality Determination^
High

1.6

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
40

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: McCulloch, A.,Midgley, P. M.. 1996. The production and global distribution of emissions of trichloroethene, tetrachloroethene
and dichloromethane over the period 1988" 1992. Atmospheric Environment.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 3026800
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Environmental Media:
Release Estimation Method:
Annual Release Quantity (kg/yr):
Global Emissions
Manufacture of DCM
Air
Discussed, but not named.
513,000 - 592,000 metric tons
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Medium
X 1
2
Process explained and cited.
Domain 2: Representative

Metric 2:
Geographic Scope
Medium
X 1
2
Europe
Metric 3:
Applicability
Medium
x 2
4
Workplace that produces Methylene Chloride, but only relates

to environmental emissions
Metric 4:
Temporal Representativeness
Low
x 2
6
1995, 23 years old
Metric 5:
Sample Size
Low
x 1
3
not provided
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Medium
x 1
2
Majority of metadata present
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
High
x 1
1
Uncertainty in data/estimations is addressed in detail.
Overall Quality Determination^
Medium
2.2
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
41

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: U.S, E. P. A.. 1978. OAQPS guideline series: Control of volatile organic emissions from manufacture of synthesized pharma-
ceutical products.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 3970050
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Disposal /Treatment Method:
Environmental Media:
Release Estimation Method:
Annual Release Quantity (kg/yr):
Number of Sites:
Use
pharmaceutical manufacture
fugitive and stack
Incineration
Air
Based on purchase and recovery numbers
5,310 metric tons
>26
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
EPA document
Domain 2: Representative

Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Medium
X
2
4
Workplace that produces Methylene Chloride, but only relates

to environmental emissions
Metric 4:
Temporal Representativeness
Low
X
2
6
1978, 40 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness Medium x 1 2 Majority of metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 None addressed.
Overall Quality Determination^
Medium
2.2

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use/Manufacture
Life Cycle Description (Subcategory of Use):	Use/Manufacture
Annual Release Quantity (kg/yr):	14,763 tons/year (2009)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Ministry of the Environment (UK)
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
Europe
Metric 3:
Applicability
Medium
x 2
4
Workplace that produces Methylene Chloride, but only relates





to environmental emissions
Metric 4:
Temporal Representativeness
High
x 2
2
2009, 9 years old
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No Comment.
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not addressed
Overall Quality Determination^	Medium	2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Japanese Ministry of, Environment. 2009. Overview of PRTR data in fiscal year 2009: Top 10 chemicals of reported release,
release outside notification of PRTR.
Releases to the Environment; Environmental Release Data;
3986513

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1997. Pharmaceutical production NESHAP.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3970121
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Environmental Media:
Annual Release Quantity (kg/yr):
Use
Pharmacuetical Manufacture
Air, Water
1992, industry wide:Air: 7,128,769 lb/yrWater: 496,917 lb/yr
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
US EPA - but data is pulled from surveys, reporting, and ex-





trapolation
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
Industry that works with methylene chloride, but is focused on





industry -wide big picture.
Metric 4:
Temporal Representativeness
Low
x 2
6
1997, 21 years old
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3 No Comment.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3 Not addressed
Overall Quality Determination^
Low

2.4

* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
44

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: U.S, E. P. A.. 2017. Preliminary Information on Manufacturing, Processing, Distribution, Use, and Disposal: Methylene
Chloride.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 3986757
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release Estimation Method:
Annual Release Quantity (kg/yr):
Use/Manufacture
U se/Manufacture
21 manufactures importl46 processing202 other uses
All
Reported Releases
2015: 153,707,292 lbs/yr.
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
High
x 1
Office of Chemical Safety and Pollution Prevention (OCSPP)
Report
Domain 2:
Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope High x 1 1
Applicability Medium x 2 4
Temporal Representativeness High x 2 2
Sample Size High x 1 1
US
Industry that works with methylene chloride, but is focused on
industry -wide big picture.
2017, 1 year old
Well characterized.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness High x 1 1 Well documented.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium x 1
2 Not applicable
Overall Quality Determination^
High
1.3

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Japanese Ministry of, Environment. 2004. Manual for PRTR release estimation models: Part II materials.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3986511
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Use/Manufacture
U se/Manufacture
Manufacture, storage, solvent use, cleaning
Atmosphere
Manufacture: 0.002 kg/tStorage: 0.26 kg/tSolvent: 336 kg/tCleaning:
891 kg/t
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low	x 1	3 not specified
Domain 2: Representative
Metric 2:
Geographic Scope
Medium
X
1
2
Likely Japan
Metric 3:
Applicability
Medium
X
2
4
Industry that works with methylene chloride, but is focused on
industry -wide big picture.
Metric 4:
Temporal Representativeness
Low
X
2
6
Unknown
Metric 5:
Sample Size
Low
X
1
3
Not well characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	High	x 1	1 Well documented.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium x 1
2 Not applicable
Overall Quality Determination^
Low
2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
46

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Japanese Ministry of, Environment. 2004. Manual for PRTR release estimation models: Part II materials.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	3986511
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Release Source:
Environmental Media:
Release or Emission Factor:
Use
Use
Degreasing/steam washing
Atmosphere: 0.8Water: OUnit: Release/handled quantity
With solvent recovery device: 0.4Without solvent recovery device: 0.75
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low	x 1	3 not specified
Domain 2: Representative
Metric 2:
Geographic Scope
Medium
X
1
2
Likely Japan
Metric 3:
Applicability
Medium
X
2
4
Industry that works with methylene chloride, but is focused on
industry -wide big picture.
Metric 4:
Temporal Representativeness
Low
X
2
6
Unknown
Metric 5:
Sample Size
Low
X
1
3
Not well characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	High	x 1	1 Well documented.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium x 1
2 Not applicable
Overall Quality Determination^
Low
2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
47

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Gilbert, D.,Goyer, M.,Lyman, W.,Magil, G.,Walker, P.,Wallace, D.,Wechsler, A.,Yee, J.. 1982. An exposure and risk assess-
ment for tetrachloroethylene.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	732615
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Environmental Media:
Release or Emission Factor:
Waste Treatment Method:
Use
Dry Cleaning
air+++++water
extimated 121,000 MT of PCE released to the atmosphere; the indus-
try emits roughly one-half of the PCE it uses, mostly in the form of
evaporative losses. Levels at the vents are between 6,800 and 680,000
ug/m3++++++++10 MT to sewer systems (table 2; pg 27 of 152).
Carbon adsorption systems are being used increasingly to treat waste
materials. In the process, solvents are routed through "chillers" to re-
duce relative temperatures.
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EPA
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
dry cleaning data
Metric 4:
Temporal Representativeness
Low
x 2
6
Data from greater than 20 years (1982)
Metric 5:
Sample Size
Medium
x 1
2
Distribution of sample is characterized by a range with uncer-
tain statistics
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High x 1
1 Data sources clearly described
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 Not addressed.
Overall Quality Determination^
Medium
1.8
Continued on next page

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Gilbert, D.,Goyer, M.,Lyman, W.,Magil, G.,Walker, P.,Wallace, D.,Wechsler, A.,Yee, J.. 1982. An exposure and risk assess-
ment for tetrachloroethylene.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	732615
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
49

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Gilbert, D.,Goyer, M.,Lyman, W.,Magil, G.,Walker, P.,Wallace, D.,Wechsler, A.,Yee, J.. 1982. An exposure and risk assess-
ment for tetrachloroethylene.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID 732615
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Daily Release Quantity (kg/day):
Use
metal degreasing
waterTetrachloroethylene is decomposed by contact with hot metals, cer-
tain inorganic acids, hot carbon, and certain alkaline metals or com-
pounds of them. Unstabilized tetrachloroethylene can be corrosive to
metals; this has obvious implications for the "terminal" disposal of waste
solutions and sludges (containing the chemical) in unlined metal drums.
TABLE 5. DEGRADATION OF TETRACHLOROETHYLENE UN-
DER VARIOUS CONDITIONS
40 MT to waterl5-62.5 percent of the solvent consumed results in
waste.Data for Tetrachloroethvlene (PCE) concentrations in wastewa-
ters before and after teratment are shown in Table 8. Combined sewage
may contain up to 2412 ug/1, although influent levels were typically be-
low 100 ug/1. Effluents were much lower, usually below 5 ug/1, indicating
removal efficiencies usually above 90 percent .
Largest release from cold metal cleaning is waste solvent evaporation.
Evaporation from a vapor degreaser is less than from a cold cleaner of
similar capacity because vapor degreasing wastes have a higher boiling
point, volatilizing less rapidly, and vapor degreasing solvents contain
expensive halogens, which are recycled. Distillation is used to recycle
wastes in half of open-top vapor degreasers.
1300
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1 EPA

Domain 2: Representative
Metric 2:
Geographic Scope
High
X 1
1 US

Continued on next page
50

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Gilbert, D.,Goyer, M.,Lyman, W.,Magil, G.,Walker, P.,Wallace, D.,Wechsler, A.,Yee, J.. 1982. An exposure and risk assess-
ment for tetrachloroethylene.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	732615
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Metric 3:
Metric 4:
Metric 5:
Applicability
Temporal Representativeness
Sample Size
High
Low
Medium
x 2
x 2
x 1
2
6
2
degreasing data
Data from greater than 20 years (1982)
Distribution of sample is characterized by a range with uncer-
tain statistics
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Data sources clearly described
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not addressed.
Overall Quality Determination^
Medium

1.8

* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
51

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Gilbert, D.,Goyer, M.,Lyman, W.,Magil, G.,Walker, P.,Wallace, D.,Wechsler, A.,Yee, J.. 1982. An exposure and risk assess-
ment for tetrachloroethylene.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	732615
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Daily Release Quantity (kg/day):
Annual Release Quantity (kg/yr):
Release Days per Year:
Number of Sites:
Use
Dry Cleaning - Industrial Plant
air
Release(see Table 16 for additional details)
model
22606
13,004,483
6
270
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	x 1	1 EPA
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
dry cleaning data
Metric 4:
Temporal Representativeness
Low
X
2
6
Data from greater than 20 years (1982)
Metric 5:
Sample Size
Medium
X
1
2
Distribution of sample is characterized by a range with uncer-
tain statistics
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Data sources clearly described
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not addressed.
Overall Quality Determination^	Medium	1.8
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
52

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Gilbert, D.,Goyer, M.,Lyman, W.,Magil, G.,Walker, P.,Wallace, D.,Wechsler, A.,Yee, J.. 1982. An exposure and risk assess-
ment for tetrachloroethylene.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	732615
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Daily Release Quantity (kg/day):
Annual Release Quantity (kg/yr):
Release Days per Year:
Number of Sites:
Use
Dry Cleaning - Commercial plant
air
Release(see Table 16 for additional details); see page 96 of 152 for infor-
mation on discharges to POTWs.
model
35002
48,262,189
5
18750
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	x 1	1 EPA
Domain 2: Representative
Metric 2:	Geographic Scope	High	x	1
Metric 3:	Applicability	High	x	2
Metric 4:	Temporal Representativeness	Low	x	2
Metric 5:	Sample Size	Medium	x	1
1	US
2	dry cleaning data
6 Data from greater than 20 years (1982)
2	Distribution of sample is characterized by a range with uncer-
tain statistics
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High x 1
1 Data sources clearly described
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 Not addressed.
Overall Quality Determination^
Medium
1.8
Continued on next page

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Gilbert, D.,Goyer, M.,Lyman, W.,Magil, G.,Walker, P.,Wallace, D.,Wechsler, A.,Yee, J.. 1982. An exposure and risk assess-
ment for tetrachloroethylene.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	732615
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
54

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Gilbert, D.,Goyer, M.,Lyman, W.,Magil, G.,Walker, P.,Wallace, D.,Wechsler, A.,Yee, J.. 1982. An exposure and risk assess-
ment for tetrachloroethylene.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	732615
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Environmental Media:
Release or Emission Factor:
Release Estimation Method:
Daily Release Quantity (kg/day):
Annual Release Quantity (kg/yr):
Use
metal degreasing
water
Release(see Table 16 for additional details); see page 96 of 152 for infor-
mation on discharges to POTWs.
EXAMS model
58163
8.76
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
EPA
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Medium
X 1
x 2
x 2
x 1
1
2
6
2
US
degreasing data
Data from greater than 20 years (1982)
Distribution of sample is characterized by a range with uncer-
tain statistics
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Data sources clearly described
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not addressed.
Overall Quality Determination^
Medium

1.8

* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
55

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	International Association for Soaps Detergents and Maintenance Products. 2012. AISE SPERC fact sheet - wide dispersive
use of cleaning and maintenance products.
Type of Data Source Releases to the Environment; Environmental Release Data;
Hero ID	5099141
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	aerosols
Environmental Media:	air
Release or Emission Factor:	100 percent
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
x 1
3
not specified
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
High
N/A
N/A
x 1
x 2
2
2
N/A
N/A
EU
Aerosols
NA - assumption
NA - assumption
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
N/A

N/A
NA - assumption
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
N/A

N/A
NA - assumption
Overall Quality Determination^	Medium	1.8
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
56

-------
PEER REVIEW DRAFT
Occupational Exposure
DO NOT CITE OR QUOTE

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: White, R. F.,Proctor, S. P.,Echeverria, D.,Schweikert, J.,Feldman, R. G.. 1995. Neurobehavioral effects of acute and chronic
mixed-sofvent exposure in the screen printing industry. American Journaf of Industrial Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 7671
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Exposure Duration:
Exposure Frequency:
Use
Screen Printing
liquid, vapor
inhalation
25-100ppm
3
1
short term
washing screens
area
20 min.
6x/day
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
Medium x 1
No method, but sampling equimpent mentioned in addition to
being reliable source: Department of Neurology, Boston Uni-
versity School of Medicine
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
High
High
x 1
x 2
Metric 4: Temporal Representativeness Low x 2
Metric 5: Sample Size Medium x 1
1 US
2 Workplace scenario that exposes employees to Methylene Chlo-
ride
6 1995, 23 years old and prior to most recent PEL
2 Characterized by a range.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness Low X 1 3 Does not have baseline metadata
Domain 4: Variability and Uncertainty
Continued on next page
58

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	White, R. F.,Proctor, S. P.,Echeverria, D.,Schweikert, J.,Feldman, R. G.. 1995. Neurobehavioral effects of acute and chronic
mixed-sofvent exposure in the screen printing industry. American Journaf of Industrial Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	7671
EVALUATION
Domain Metric
Rating
MWF* Score Comments
Metric 7: Metadata Completeness
Low
X 1 3 Does not address variability and uncertainty.
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
59

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Lash, A. A.,Becker, C. E.,So, Y.,Shore, M.. 1991. Neurotoxic effects of methylene chloride: Are they long lasting in humans?.
Occupational and Environmental Medicine.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	13509
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Use
Paint Stripping
liquid, vapor
inhalation
Many year range 1975 - 1986.97 - 236 ppm
155
1
varies
Varies
1,758
personal, area
hanger
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
No analytical method given
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
High
High
X 1
x 2
1
2
US
Workplace scenario that exposed employees to Methylene Chlo-
Metric 4:
Metric 5:
Temporal Representativeness
Sample Size
Low
Low
x 2
x 1
6
3
1991, 27 years old
Not characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Well documented
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressing data
Continued on next page
60

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Overall Quality Determination^	Medium	2.2
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Lash, A. A.,Becker, C. E.,So, Y.,Shore, M.. 1991. Neurotoxic effects of methylene chloride: Are they long lasting in humans?.
Occupational and Environmental Medicine.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
13509
61

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	McCammon, CS, Jr; Glaser, RA; Wells, VE; Phipps, FC; Halperin, WE. 1991. nan. Applied Occupational and Environmental
Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	13526
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
PPE:
Use
Furniture Stripping
vapor
inhalation
15 - 366 ppm
14
5
TWA
Stripping furniture (stripping, washing, refinishing)
14
Personal
rubber gloves, rubber aprons, safety glasses, rubber boots
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	x 1	1 NIOSH Study
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
5 furniture strippers in U.S.
Metric 3:
Applicability
High
X
2
2
Furniture Stripping
Metric 4:
Temporal Representativeness
Low
X
2
6
1991 - more than 20 years old and prior to most recent PEL
Metric 5:
Sample Size
High
X
1
1
Individual data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 provided key information
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Medium X 1	2 Study was conducted in summer, and shop doors were open,
allowing increased ventilation. These exposures may be among
the lowest for the work year if all else is equal.
Continued on next page
62

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	McCammon, CS, Jr; Glaser, RA; Wells, VE; Phipps, FC; Halperin, WE. 1991. nan. Applied Occupational and Environmental
Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	13526
EVALUATION
Domain
Metric
Rating MWF* Score
Comments

Overall Quality Determination^

Medium 1.7


* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
63

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Ghittori, S.,Marraccini, P.,Franco, G.,Imbriani, M.. 1993. Methylene chloride exposure in industrial workers. AIHA Journal.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	13832
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Type of Sampling:
Exposure Duration:
Use
Pharmaceutical
vapor
inhalation
50.3 mg/m3 (mean)
washing gelatine capsules
Personal
half shift (4 hr)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
AIHA Journal Article
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
Italy
Metric 3:
Applicability
High
x 2
2
Pharmaceutical factory - washing gelatine capsules
Metric 4:
Temporal Representativeness
Low
x 2
6
1993, prior to most recent PEL
Metric 5:
Sample Size
Low
x 1
3
only provided mean, range, and SD
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
personal samples, taken over 4 hr period
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
no discussion of uncertainy for air concentration data
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
64

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Ott, M. G.,Skory, L. K.,Holder, B. B.,Bronson, J. M.,Williams, P. R.. 1983. Health evaluation of employees occupationally
exposed to methylene chloride. Scandinavian Journal of Work, Environment and Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 29149
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Type of Sampling:
Use
Cellulose Triacetate and Film Base Production - preparation and extru-
sion
Vapor
Inhalation
140-475 ppm (median)
Cellulose Triacetate and Film Base Production - preparation and extru-
sion
PBZ
EVALUATION
Domain Metric Rating MWF* Score Comments
Domain 1: Reliability
Metric 1: Methodology Low x 1 3 not described
Domain 2: Representative
Metric 2
Metric 3
Metric 4
Metric 5
Geographic Scope High x 1
Applicability High x 2
Temporal Representativeness Low x 2
Sample Size Medium x 1
1 US data
2 Use in scope
6 1983, prior to most recent PEL
2 Range and median given, but no discrete data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
sample type given, no other metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^ Medium 2.2
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
65

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Tates, A. D.,Grummt, T.,Van Dam, F. J.,De Zwart, F.,Kasper, F. J.,Rothe, R.,Stirn, H.,Zwinderman, A. H.,Natarajan, A.
T.. 1994. Measurement of frequencies of HPRT mutants, chromosomal aberrations, micronuclei, sister-chromatid exchanges
and cells with high frequencies of SCEs in styrene/dichloromethane-exposed workers. DNA Repair.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 51622
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Use
industrial styrene contianers and boards
Liquid,Vapor
Inhalation
0-742 mg/m3
1
TWA
Equipment Cleaning
46
ambient air
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Low
X
1
3
Unknown method
Domain 2: Representative

Metric 2:
Geographic Scope
Medium
X
1
2
Former German Democratic Republic
Metric 3:
Applicability
High
X
2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
X
2
6
1994, 24 years old and prior to most recent PEL
Metric 5:
Sample Size
Medium
X
1
2
Only provides mean and range
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Low
X
1
3
Very basic metadata
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Medium
X
1
2
Offers limited discussion regarding potentials for variability.
Overall Quality Determination^
Medium

2.2

Continued on next page
66

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Tates, A. D.,Grummt, T.,Van Dam, F. J.,De Zwart, F.,Kasper, F. J.,Rothe, R.,Stirn, H.,Zwinderman, A. H.,Natarajan, A.
T.. 1994. Measurement of frequencies of HPRT mutants, chromosomal aberrations, micronuclei, sister-chromatid exchanges
and cells with high frequencies of SCEs in styrene/dichloromethane-exposed workers. DNA Repair.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	51622
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
67

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Eriedlander, B. R.,Hearne, T.,Hall, S.. 1978. Epidemiologic investigation of employees chronically exposed to methylene
chloride: Mortality analysis. Journal of Occupational and Environmental Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	65067
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Sampling:
Use
cleaning solvent - film acetate
vapor
inhalation
0-350 ppm
307
1
Spot Samples, personal monitoring
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
not described
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US data
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1978, 40 years old and prior to most recent PEL
Metric 5:
Sample Size
Medium
x 1
2
Only provides mean and range
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
sample type given, no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Medium
x 1
2
Offers limited discussion regarding potentials for variability.
Overall Quality Determination^
Medium
2.1
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
68

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Vincent, R.,Poirot, P.,Subra, I.,Rieger, B.,Cicolella, A.. 1994. Occupational exposure to organic solvents during paint stripping
and painting operations in the aeronautical industry. International Archives of Occupational and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	76565
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Sites:
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
Use
Airplane stripping
liquid, vapor
inhalation
299.2-1888.9 mg/m3
1
Type of Measurement or Method:
TWA
Worker Activity:
Stripping aircraft paint
Type of Sampling:
personal
Exposure Duration:
up to 8 hours
PPE:
None worn.
EVALUATION

Domain Metric
Rating MWF* Score Comments
Domain 1: Reliability

Metric 1: Methodology
Medium X 1 2 Not defined, but clearly described
Medium x 1
High x 2
Metric 4: Temporal Representativeness Low	x 2
Metric 5: Sample Size	Medium x 1
2 France
2	Workplace scenario that exposes employees to Methylene Chlo-
ride
6 1993, 25 years old and prior to most recent PEL
2 Characterized by a range.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium x
1 2
Has baseline metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium x
1 2
Data utilizes SD, but does not discuss variability much beyond
that.


Continued on next
page

69

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:
Vincent, R.,Poirot, P.,Subra, I.,Rieger, B.,Cicolella, A..
1994. Occupational exposure to organic solvents during paint stripping

and painting operations in the aeronautical industry. International Archives of Occupational and Environmental Health.
Type of Data Source
Occupational Exposure; Monitoring Data;

Hero ID
76565

EVALUATION


Domain
Metric Rating
MWF* Score Comments
Overall Quality Determination^ Medium
2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Vincent, R.,Poirot, P.,Subra, I.,Rieger, B.,Cicolella, A.. 1994. Occupational exposure to organic solvents during paint stripping
and painting operations in the aeronautical industry. International Archives of Occupational and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	76565
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Exposure Duration:
Use
Airplane stripping
vapor
inhalation
Stripping: 86 - 1,239.5 mg/m3 (8-hr TWA); Masking: 97.2-174.6 mg/m3
(8-hr TWA)
45
1
TWA
stripping (direct exposure); masking (indirect exposure)
personal
various
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
unclear- equipment information provided
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
France
Metric 3:
Applicability
High
x 2
2
Aircraft stripping
Metric 4:
Temporal Representativeness
Low
x 2
6
1993 - more than 20 years old and prior to most recent PEL
Metric 5:
Sample Size
Medium
x 1
2
ranges provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
details not provided for each sample
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Medium
x 1
2
limited discussion on variability
Continued on next page
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— continued from previous page
Source Citation:
Vincent, R.,Poirot, P.,Subra, I.,Rieger, B.,Cicolella, A..
1994. Occupational exposure to organic solvents during paint stripping

and painting operations in the aeronautical industry. International Archives of Occupational and Environmental Health.
Type of Data Source
Occupational Exposure; Monitoring Data;

Hero ID
76565

EVALUATION


Domain
Metric Rating
MWF* Score Comments
Overall Quality Determination^ Medium
2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Ukai, H.,Okamoto, S.,Takada, S.,Inui, S.,Kawai, T.,Higashikawa, K.,Ikeda, M.. 1998. Monitoring of occupational exposure
to dichloromethane by diffusive vapor sampling and urinalysis. International Archives of Occupational and Environmental
Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	667565
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Exposure Duration:
Use
Printing
vapor
inhalation
1-180 ppm
unclear
cleaning up of printingrolls with DCM and application of DCM as a
solvent in theproduction of industrial materials, among other processes
61 (unclear how many sites)
personal (carbon-cloth df'usive sampler)
8 hr
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Medium X 1	2 carbon-cloth di"usive sampler - unclear the validity of the
method
Domain 2: Representative
Metric 2:
Geographic Scope
Medium
X
1
2
Data from Japan (OECD country)
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
X
2
6
study performed in 1997, after most recent PEL
Metric 5:
Sample Size
Medium
X
1
2
range, geometric mean, geometric standard deviation given, no
discrete data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium x 1
2
Most metadata given, missing exposure frequency and duration
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3
not discussed
Continued on next page
73

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— continued from previous page
Source Citation:	Ukai, H.,Okamoto, S.,Takada, S.,Inui, S.,Kawai, T.,Higashikawa, K.,Ikeda, M.. 1998. Monitoring of occupational exposure
to dichloromethane by diffusive vapor sampling and urinalysis. International Archives of Occupational and Environmental
Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	667565
EVALUATION
Domain
Metric
Rating MWF* Score
Comments

Overall Quality Determination^

Medium 2.1


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Hein, M. J.,Waters, M. A.,Ruder, A. M.,Stenzel, M. R.,Blair, A.,Stewart, P. A.. 2010. Statistical modeling of occupational
chlorinated solvent exposures for case-control studies using a literature-based database. Annals of Occupational Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 729521
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Exposure Concentration (Unit):
Number of Samples:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Engineering Control & percent Exposure Reduction:
Analytic Method:
Multi-Industry
Multi-Industry
Vapor, liquid, aerosol
Range: 0.0004 - 2200 ppmMedian: 7.0 ppm
1272 reported measurements from 1970 - 2011
All converted to 8 hour TWA
Varies
Varies
Personal, Area, Short Term
Varies: looked at impact of local exhaust ventilation and industrial me-
chanical dilution
Varies
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X
1
1
NIOSH document
Domain 2: Representative

Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Unacceptable
X
2
8
Does not indicate specific exposure scenarios for any of the

data
Metric 4:
Temporal Representativeness
Medium
X
2
4
2010, but utilizes decades old data for analysis.
Metric 5:
Sample Size
Low
X
1
3
Gives summary of data, no detailed points with characteriza-

tion
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
Does not quite fit the metadata completeness for the moni-
toring section, but cearly states how the metadata has been
accounted for.
Continued on next page
75

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— continued from previous page
Source Citation:	Hein, M. J.,Waters, M. A.,Ruder, A. M.,Stenzel, M. R.,Blair, A.,Stewart, P. A.. 2010. Statistical modeling of occupational
chlorinated solvent exposures for case-control studies using a literature-based database. Annals of Occupational Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	729521
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	High	X 1	1 Variability and uncertainty are addressed in the document in
the discussion of the methods.
Overall Quality Determination^	Unacceptable	4 Metric Mean Score: 2.3.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
76

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Source Citation:	Cherry, N.,Venables, H.,Waldron, H. A.,Wells, G. G.. 1981. Some observations on workers exposed to methylene chloride.
British Journal of Industrial Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730498
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	acetate film manufacturing
Physical Form:	vapor
Route of Exposure:	inhalation
Exposure Concentration (Unit):	75-100ppm(given, untested)
Number of Sites:	1
Number of Workers:	76
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
None Noted
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Medium
Low
Low
X 1
x 2
x 2
x 1
1
4
6
3
US
Focuses on medical impact not work environment.
1981 - 37 years old and prior to most recent PEL
Limited
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Unacceptable
x 1
4
No metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^	Unacceptable	4 Metric Mean Score: 2.7.
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Cherry, N.,Venables, H.,Waldron, H. A.,Wells, G. G.. 1981. Some observations on workers exposed to methylene chloride.
British Journal of Industrial Medicine.
Occupational Exposure; Monitoring Data;
730498
78

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Source Citation:	Anundi, H.,Lind, M. L.,Eriis, L.,Itkes, N.,Langworth, S.,Edling, C.. 1993. High exposures to organic solvents among graffiti
removers, fnternationai Archives of Occupational and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730504
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
PPE:
Use
Graffiti Removal
vapor
inhalation
18 - 1,188 mg/m3; geometric mean = 127 mg/m3; geo SD = 3.6 mg/m3;
mean = 260 mg/m3; 15-min samples: 6 -5,315 mg/m3; geometric mean
= 400 mg/m3; geometric SD = 5.59 mg/m3; mean = 1,117 mg/m3
12
1
TWA
Graffiti cleaning (spray solvent on surfaces and swab with tissue, or apply
thickened solvent with brush and wash with heated (70oC) high-pressure
water spray)
12
Personal
leather gloves; no respirators; sometimes confined spaces
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
unclear - methods provided, conducted by Swedish Department





of Occupational Medicine
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
Sweden
Metric 3:
Applicability
High
x 2
2
Graffiti Remover
Metric 4:
Temporal Representativeness
Low
x 2
6
1993 - more than 20 years old and prior to most recent PEL
Metric 5:
Sample Size
Medium
x 1
2
range, geometric mean, mean
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
8-hr TWA personal samples
Continued on next page
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— continued from previous page
Source Citation:	Anundi, H.,Lind, M. L.,Eriis, L.,Itkes, N.,Langworth, S.,Edling, C.. 1993. High exposures to organic solvents among graffiti
removers. International Archives of Occupational and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730504
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Medium x 1	2 limited discussion on variability
Overall Quality Determination^
Medium
2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
80

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Dell, L. D.,Mundt, K. A.,McDonald, M.,Tritschler, J. P.,Mundt, D. J.. 1999. Critical review of the epidemiology literature on
the potential cancer risks of methylene chloride. International Archives of Occupational and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 730507
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Use
Triacetate film base production
vapor
inhalation
30-120ppm
TWA
various
personal/area
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
Not Specified
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Medium
X 1
x 2
x 2
x 1
1
2
6
2
US data
Use in scope
1959-1975, prior to most recent PEL
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Missing sample time, exposure duration, and exposure fre-
quency but results presented as 8-hr TWAs
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Medium
2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
81

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Dell, L. D.,Mundt, K. A.,McDonald, M.,Tritschler, J. P.,Mundt, D. J.. 1999. Critical review of the epidemiology literature on
the potential cancer risks of methylene chloride. International Archives of Occupational and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 730507
EXTRACTION
Parameter Data
Life Cycle Stage:
Use
Life Cycle Description (Subcategory of Use):
Triacetate film base production
Physical Form:
vapor
Route of Exposure:
inhalation
Exposure Concentration (Unit):
5-380 ppm (preparation area); 50-590 ppm (extrusion area)
Type of Measurement or Method:
TWA
Worker Activity:
various
Type of Sampling:
personal
EVALUATION

Domain Metric
Rating MWF* Score Comments
Domain 1: Reliability

Metric 1: Methodology
Low X 1 3 Not Specified
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US data
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
X
2
6
1954-1977, prior to most recent PEL
Metric 5:
Sample Size
Medium
X
1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Medium
X
1
2
Missing sample time, exposure duration, and exposure fre-

quency but results presented as 8-hr TWAs
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
X
1
3
Not discussed.
Overall Quality Determination^ Medium 2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
82

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
Not Specified
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
High
Low
Medium
X 1
x 2
x 2
x 1
2
2
6
2
UK
Use in scope
1980-1988, prior to most recent PEL
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Missing sample time, exposure duration, and exposure fre-
quency but results presented as 8-hr TWAs
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^ Medium 2.2
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:	Hearne, F. T.,Pifer, J. W.. 1999. Mortality study of two overlapping cohorts of photographic film base manufacturing
employees exposed to methylene chloride. Journal of Occupational and Environmental Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730525
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Use
photographic film support
vapor
inhalation
0-520 ppm (data same as 730524 and 730507)
1500 area, 2500 personal over 50 years
1
8 hour TWA
Various
1,070
personal, area
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low	x 1	3 Unknown method
Domain 2: Representative
Metric 2
Metric 3
Metric 4
Metric 5
Geographic Scope	High	x 1
Applicability	Medium	x 2
Temporal Representativeness	Low	x 2
Sample Size	Low	x 1
1	US
4	Focuses on medical impact not work environment.
6	Data runs from 1946-1994, prior to most recent PEL
3	Limited
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	x 1	3 Limited
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Low	x 1	3 None addressing data
Overall Quality Determination^	Low	2.6
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— continued from previous page
Source Citation:	Hearne, F. T.,Pifer, J. W.. 1999. Mortality study of two overlapping cohorts of photographic film base manufacturing
employees exposed to methylene chloride. Journal of Occupational and Environmental Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730525
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
85

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Estill, C. F.,Spencer, A. B.. 1996. Case study: Control of methylene chloride exposures during furniture stripping. American
Industrial Hygiene Association Journal.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 730528
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Engineering Control & percent Exposure Reduction:
Analytic Method:
Use
Furniture Stripping
liquid, vapor
inhalation, dermal
21-2160 ppm
1
TWA
Stripping furniture
personal
Some local exhaust ventilation and a makeup air unit outside stripping
area.
NIOSH Method 1005
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH Method 1005
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Workplace scenario that exposes employees to Methylene Chlo-
ride
1996, 22 years old and prior to most recent PEL
Datapoints given as a range in many cases. Very little charac-
terization
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Basic metadata present.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Continued on next page
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— continued from previous page
Source Citation:	Estill, C. F.,Spencer, A. B.. 1996. Case study: Control of methylene chloride exposures during furniture stripping. American
Industrial Hygiene Association Journal.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730528
EVALUATION
Domain
Metric
Rating MWF* Score
Comments

Overall Quality Determination^

Medium 2.0


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
87

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Gibbs, G. W.,Amsel, J.,Soden, K.. 1996. A cohort mortality study of cellulose triacetate-fiber workers exposed to methylene
chloride. Journal of Occupational and Environmental Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730533
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Sites:
Number of Workers:
Use
Cellulose Triacetate-Fiber
50-1250 ppm
1
3,211
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
Not mentioned
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
Canada
Metric 3:
Applicability
High
x 2
2
Workplace scenario that exposed employees to Methylene Chlo-
Metric 4:
Temporal Representativeness
Low
x 2
6
1996, but utilizes decades old data for analysis (prior to PEL)
Metric 5:
Sample Size
Medium
x 1
2
Gives summary of basic data and a basic range, but nothing





too detailed
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3 discussed personal sampling data from another source
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3 Does not address variability and uncertainty.
Overall Quality Determination^
Low

2.3

* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Hearne, F. T.,Pifer, J. W.,Grose, F.. 1990. Absence of adverse mortality effects in workers exposed to methylene chloride: An
update. Journal of Occupational Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 730543
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Use
photographic film support
vapor
inhalation
1200 area, 900 personal over 40 years
1
Various
1,013
personal, area
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
Unknown method
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Medium
Low
Low
X 1
x 2
x 2
x 1
1
4
6
3
US
Focuses on medical impact not work environment.
Data runs from 1946-1988, prior to most recent PEL
Limited
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Limited
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^ Low 2.6
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
89

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Lanes, S. F.,Rothman, K. J.,Dreyer, N. A.,Soden, K. J.. 1993. Mortality update of cellulose fiber production workers.
Scandinavian Journal of Work, Environment and Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 730555
EXTRACTION
Parameter Data
Life Cycle Stage: Manufacture
Life Cycle Description (Subcategory of Use): cellulose triacetate fiber
Route of Exposure: inhalation
Exposure Concentration (Unit): ND-1700 ppm
Number of Sites: 1
Type of Measurement or Method: 8 hr TWA
Number of Workers: 1,271
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X
1
3
None given, references data from sampling done by Williams
PR, et al.
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Medium
X
X
X
X
1
2
2
1
1
2
6
2
US data
Workplace that has potential exposure to employees
1993, 25 years old and prior to most recent PEL
range given, but no other statistics
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
X
1
3
sample type given, no other metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
X
1
3
None addressing data
Overall Quality Determination^ Medium 2.2
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
90

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Source Citation:	Mahmud, M.,Kales, S. N.. 1999. Methylene chloride poisoning in a cabinet worker. Environmental Health Perspectives.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730564
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Sites:
Worker Activity:
Use
laminating cabinetry
vapor, liquid
inhalation, dermal
300-500 ppm
1
Laminating - spraying contact cement
Number of Workers:
10



Type of Sampling:
Area



Exposure Duration:
Varies



Exposure Frequency:
Varies



PPE:
None used



EVALUATION




Domain Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability




Metric 1: Methodology
Low
X 1
3
None Noted
Domain 2: Representative




Metric 2: Geographic Scope
High
X 1
1
US
Metric 3: Applicability
Medium
x 2
4
Focuses on medical impact not work environment.
Metric 4: Temporal Representativeness
Medium
x 2
4
1999, 19 years old but collected after most recent PEL
Metric 5: Sample Size
Low
x 1
3
Limited
Domain 3: Accessibility/Clarity




Metric 6: Metadata Completeness
Low
x 1
3
Limited
Domain 4: Variability and Uncertainty




Metric 7: Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^
Low

2.3

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Source Citation:	Mahmud, M.,Kales, S. N.. 1999. Methylene chloride poisoning in a cabinet worker. Environmental Health Perspectives.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730564
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
92

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Source Citation: Tomenson, J. A.,Bonner, S. M.,Heijne, C. G.,Farrar, D. G.,Cummings, T. F.. 1997. Mortality of workers exposed to methylene
chloride employed at a plant producing cellulose triacetate film base. Occupational and Environmental Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 730586
EXTRACTION
Parameter Data
Life Cycle Stage: Use
Life Cycle Description (Subcategory of Use): Film Production
Exposure Concentration (Unit): 2-165 ppmlO ppm average
Number of Sites: 1
Type of Measurement or Method: 8 hr TWA
Worker Activity: Varies
Number of Workers: 1,473
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X
1
3
Explained exposure estimation philosophy but unable to verify
credibility
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
Medium
High
X
X
1
2
2
2
UK
Workplace scenario that exposed employees to Methylene Chlo-
Metric 4:
Metric 5:
Temporal Representativeness
Sample Size
Low
Medium
X
X
2
1
6
2
1997, but utilizes decades old data for analysis (prior to PEL)
Gives summary of basic data and a basic range, but nothing
too detailed
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
X
1
3
Does not quite fit the metadata completeness for the moni-
toring section, but cearly states how the metadata has been
accounted for.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
X
1
3
Does not address variability and uncertainty.
Overall Quality Determination^
Low

2.3

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— continued from previous page
Source Citation:	Tomenson, J. A.,Bonner, S. M.,Heijne, C. G.,Farrar, D. G.,Cummings, T. F.. 1997. Mortality of workers exposed to methylene
chloride employed at a plant producing cellulose triacetate film base. Occupational and Environmental Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	730586
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
94

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Source Citation: Soden, K. J.. 1993. An evaluation of chronic methylene chloride exposure. Journal of Occupational Medicine.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID 730597
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Sites:
Number of Workers:
Use
Triacetate Fiber Manufacture
475 ppm avg.
1
1,271
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
No analytical method given
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
High
High
X 1
x 2
1
2
US
Workplace scenario that exposed employees to Methylene Chlo-
Metric 4:
Metric 5:
Temporal Representativeness
Sample Size
Low
Low
x 2
x 1
6
3
1993, 25 years old
Not characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Unacceptable
x 1
4
personal samples. 8-hr TWA
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed - focused on health effects
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.4.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Tomenson, J. A.. 2011. Update of a cohort mortality study of workers exposed to methylene chloride employed at a plant
producing cellulose triacetate film base. International Archives of Occupational and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 787813
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Use
Film Production
19ppm average
1
8 hr TWA
Varies
1,473
EVALUATION

Domain
Metric
Rating
MWF* Score Comments
Domain 1: Reliability

Metric 1:
Methodology
Low
X 1 3 Method referenced to journal article, but not fully expressed
Domain 2: Representative
Metric 2: Geographic Scope
Medium
X
1
2
UK
Metric 3: Applicability
High
X
2
2
Workkplace scenario that exposed employees to Methylene

Chloride
Metric 4: Temporal Representativeness
Medium
X
2
4
2010, but utilizes decades old data for analysis.
Metric 5: Sample Size
Medium
X
1
2
Gives summary of data and a basic range, but nothing too

detailed.
Domain 3: Accessibility/Clarity

Metric 6: Metadata Completeness
Low
X
1
3
Does not quite fit the metadata completeness for the moni-

toring section, but cearly states how the metadata has been

accounted for.
Domain 4: Variability and Uncertainty

Metric 7: Metadata Completeness
Low
X
1
3
Does not address variability and uncertainty.
Overall Quality Determination^
Medium

2.1

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Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Tomenson, J. A.. 2011. Update of a cohort mortality study of workers exposed to methylene chloride employed at a plant
producing cellulose triacetate film base. International Archives of Occupational and Environmental Health.
Occupational Exposure; Monitoring Data;
787813

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Thrall, K. D.,Callahan, P. J.,Weitz, K. K.,Edwards, J. A.,Brinkman, M. C.,Kenny, D. V.. 2001. Design and evaluation of a
breath-analysis system for biological monitoring of volatile compound. AIHAJ.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	819357
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Type of Sampling:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Environment
Waste Repackaging
inhalation
ND-573 ppm
27
1
Waste Repackaging
personal
varies
varies
NIOSH Method 1500 and others
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	x 1	1 NIOSH Method 1500 and new methods for better Biological
Exposure indexing
Domain 2: Representative
Metric 2
Metric 3
Metric 4
Metric 5
Geographic Scope	High	x 1
Applicability	High	x 2
Temporal Representativeness	Medium x 2
Sample Size	Medium x 1
1	US
2	Workplace that has potential exposure to employees
4	2001, 17 years old
2	personal samples
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium x 1	2 Basic Meta data given.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Low	x 1	3 None addressing data
Continued on next page
98

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Source Citation:	Thrall, K. D.,Callahan, P. J.,Weitz, K. K.,Edwards, J. A.,Brinkman, M. C.,Kenny, D. V.. 2001. Design and evaluation of a
breath-analysis system for biological monitoring of volatile compound. AIHAJ.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	819357
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Overall Quality Determination^

Medium 1.7


* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
99

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Source Citation: Kersemaekers, W. M.,Roeleveld, N.,Zielhuis, G. A.. 1995. Reproductive disorders due to chemical exposure among hair-
dressers. Scandinavian Journal of Work, Environment and Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 1333689
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Sampling Location:
Use
Hair Salon (Hair spray)
Aerosol
inhalation
TWA Area: 4-8ppmTWA Personal: 18ppmPeak:400ppm
Peak, TWA
Hair Styling
Personal, area
Ambient salon air and around chair
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Low
X 1
3
No methodology given
Domain 2: Representative

Metric 2:
Geographic Scope
Medium
X 1
2
The Netherlands
Metric 3:
Applicability
High
x 2
2
Hair salon, representative of workplace use.
Metric 4:
Temporal Representativeness
Low
x 2
6
1995, prior to most recent PEL
Metric 5:
Sample Size
Medium
x 1
2
ranges and averages provided
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Low
x 1
3
Possible 2, has basic information regarding overall findings
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^ Low 2.3
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
100

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Source Citation: Lee, E. G.,Harper, M.,Bowen, R. B.,Slaven, J.. 2009. Evaluation of COSHH essentials: methylene chloride, isopropanol, and
acetone exposures in a small printing plant. Annals of Occupational Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 1612579
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Use
Printing press cleaning
liquid, vapor
inhalation
Exposure Concentration (Unit):
Estimated average exposure: 6.9ppm
Number of Samples:
7

Number of Sites:
1

Worker Activity:
Cleaning print press rollers

Exposure Duration:
8 hr

EVALUATION

Domain Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1: Methodology
Low
X 1
3
No methodology given
Domain 2: Representative

Metric 2: Geographic Scope
High
X 1
1
US
Metric 3: Applicability
High
x 2
2
Representative of a workplace use.
Metric 4: Temporal Representativeness
Low
x 2
6
Published 2009, but utilizes much older data (1993-2000, data

from pre- and post-most recent PEL; therefore scored a "3")
Metric 5: Sample Size
Low
x 1
3
Range of data points on graph, but not expressly detailed
Domain 3: Accessibility/Clarity

Metric 6: Metadata Completeness
Unacceptable
x 1
4
No information as to sample type in exposure data/estimations
Domain 4: Variability and Uncertainty

Metric 7: Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.4.
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Lee, E. G.,Harper, M.,Bowen, R. B.,Slaven, J.. 2009. Evaluation of COSHH essentials: methylene chloride, isopropanol, and
acetone exposures in a small printing plant. Annals of Occupational Hygiene.
Occupational Exposure; Monitoring Data;
1612579
102

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Source Citation: Reh, C. M.,Mortimer, V. D.,Nemhauser, J. B.,Trout, D.. 2002. NIOSH Health Hazard Evaluation Report: HETA No.
98-0153-2883, Custom Products, Inc. Mooresville, NC.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 1737898
EXTRACTION

Parameter

Data

Life Cycle Stage:

Use

Life Cycle Description (Subcategory of Use):
Solvent Based Adhesives

EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X 1
1
NIOSH
Domain 2: Representative

Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Unacceptable
x 2
8
HHE of facility that recently transitioned from methylene chlo-

ride to 1-bromopropane (1-BP)
Metric 4:
Temporal Representativeness
Medium
x 2
4
2002, 16 years old
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
x 1
4
No Comment.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.7.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, two of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
103

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Source Citation:	Kumagai, S.,Kurumatani, N.,Arimoto, A.,Ichihara, G.. 2013. Cholangiocarcinoma among offset coiour proof-printing workers
exposed to 1,2-dichioropropane and/or dichioromethane. Occupationai and Environmentai Medicine.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	1936441
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Sites:
Worker Activity:
Number of Workers:
Exposure Duration:
Exposure Frequency:
PPE:
Use
Offset Printing
liquid, vapor
inhalation
Estimated: 1991-1993: 120-430ppml993-1998: 190-540ppm
1
Cleaning ink from print plates
62
8 hr
150-400 times
plastic gloves
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
No methodology given
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
Japan
Metric 3:
Applicability
High
x 2
2
Representative of a workplace use.
Metric 4:
Temporal Representativeness
Low
x 2
6
Published 2015, but utilizes much older (pre-PEL) data and





firsthand accounts
Metric 5:
Sample Size
Medium
x 1
2
Range of data, no specific data points
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Unacceptable
x 1
4
No information as to sample type in exposure data/estimations
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
None addressing data
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Source Citation:
Kumagai, S.,Kurumatani, N.,Arimoto, A.,Ichihara, G.. 2013. Cholangiocarcinoma among offset colour proof-printing workers

exposed to 1,2-dichloropropane and/or dichloromethane. Occupational and Environmental Medicine.
Type of Data Source
Occupational Exposure; Monitoring Data;
Hero ID
1936441
EVALUATION

Domain
Metric Rating MWF* Score Comments
Overall Quality Determination^ Unacceptable 4 Metric Mean Score: 2.4.

** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
105

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Chan, C.,Lee, S. C.,Chan, W.,Ho, K.,Tian, L.,Lai, S.,Li, Y.,Huang, Y. u. 2011. Characterisation of Volatile Organic Com-
pounds at Hotels in Southern China. Indoor and Built Environment.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	1978790
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Ambient Environment (hotel)
Various
vapor
0-35 ug/m3
26
13
8 hour
area
non-smoking guest room
continuous
varies
US EPA Compendium Method TO-14a
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
US EPA Compendium Method TO-14a
Domain 2: Representative





Metric 2:
Geographic Scope
Low
X 1
3
China
Metric 3:
Applicability
Low
x 2
6
Focused on ambient air quality in a hotel, but relavent to work-





ers in any ambient built environment
Metric 4:
Temporal Representativeness
High
x 2
2
2011
Metric 5:
Sample Size
Low
x 1
3
Provides basic summary and difficult to understand bar graph
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
Has baseline metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Does not address variability and uncertainty.
Continued on next page
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— continued from previous page
Source Citation:	Chan, C.,Lee, S. C.,Chan, W.,Ho, K.,Tian, L.,Lai, S.,Li, Y.,Huang, Y. u. 2011. Characterisation of Volatile Organic Com-
pounds at Hotels in Southern China. Indoor and Built Environment.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	1978790
EVALUATION
Domain
Metric
Rating MWF* Score
Comments

Overall Quality Determination^

Medium 2.1


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
107

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Source Citation:	Colborn, T.,Schultz, K.,Herrick, L.,Kwiatkowski, C.. 2014. An exploratory study of air quality near natural gas operations.
Human and Ecological Risk Assessment.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	2108438
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Mining/Drilling
Closed loop hydraulic fracturing well
vapor
Mean: 206.2 ppbRange: 2.7-1730
48
1
24 hour samples once a week
Drilling, fracturing, other
Area
.7 miles from well pad of interest.
continuous
continuous
USEPA Method TO-15
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
High
x 1
EPA Methods TO-15
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
High x 1
Medium x 2
Metric 4: Temporal Representativeness High x 2
Metric 5: Sample Size	High x 1
1	US
4	Focused on ambient monitoring of a workplace that has expo-
sure to Methylene chloride
2	2010
1	Presented as Range, but includes mean and standard deviation
and other metrics
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	High	X 1	1 Has metadata in tables and within the text.
Domain 4: Variability and Uncertainty
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Colborn, T.,Schultz, K.,Herrick, L.,Kwiatkowski, C..
Human and Ecological Risk Assessment.
Occupational Exposure; Monitoring Data;
2108438
2014. An exploratory study of air quality near natural gas operations.
EVALUATION
Domain
Metric Rating
MWF* Score Comments

Metric 7; Metadata Completeness High
X 1 1 Addresses variability and uncertainty.
Overall Quality Determination^ High
1.2

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
109

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Source Citation:	Porter, E.. 2006. OSHA compliance issues - Evaluation of worker exposure to TDI, MOCA, and methylene chloride. Journal
of Occupational and Environmental Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	2277546
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
Use
Polyurethane Mold Release Agent
8.1-72.5 ppm
8 - STEL1 - 8 Hr TWA
I
STEL, TWA
Mold Release Agent, Occasional Part Cleaning
II
Personal
various
workday
varies
Limited efficiency vents
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
sampling conducted by OSHA, assumed OSHA method used
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
High
High
X 1
x 2
1
2
US
Workplace scenario that exposed employees to Methylene Chlo-
Metric 4:
Metric 5:
Temporal Representativeness
Sample Size
Medium
High
x 2
x 1
4
1
2007, 11 years old and after most recent PEL
discrete data given
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Most metadata given, missing exposure frequency and duration
Domain 4: Variability and Uncertainty
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Source Citation:
Type of Data Source
Hero ID
Porter, E.. 2006. OSHA compliance issues - Evaluation of worker exposure to TDI, MOCA, and methylene chloride. Journal
of Occupational and Environmental Hygiene.
Occupational Exposure; Monitoring Data;
2277546
EVALUATION
Domain
Metric Rating
MWF* Score Comments

Metric 7; Metadata Completeness Low
X 1 3 None addressing data
Overall Quality Determination^ High
1.6

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
111

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Source Citation: Fairfield, C. L.,Jensen, P. A.,Jones, J. H.,Fischbach, T. J.. 1990. In-Depth Survey Report: The Control of Methylene Chloride
in Furniture Stripping at Kwick Kleen Industrial Solvents, Inc., Vincennes, Indiana.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 2531020
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Type of Sampling:
Analytic Method:
Use
Furniture Stripping
liquid, vapor
inhalation
Mean area: 68-667 ppmMean personal: 193-599 ppm
44
3
Stripping furniture
personal, area
NIOSH Method 1005
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X 1
1
NIOSH Method 1005
Domain 2: Representative

Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Experiment that uses Methylene Chloride as it would be done

in the workplace.
Metric 4:
Temporal Representativeness
Low
x 2
6
1990, 28 years old and prior to most recent PEL
Metric 5:
Sample Size
Medium
x 1
2
Characterized by a range, but also provides mean.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Low
x 1
3
Data is presented in a range, incomplete metadata.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^
Medium

2.0

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Source Citation:	Fairfield, C. L.,Jensen, P. A.,Jones, J. H.,Fischbach, T. J.. 1990. In-Depth Survey Report: The Control of Methylene Chloride
in Furniture Stripping at Kwick Kleen Industrial Solvents, Inc., Vincennes, Indiana.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	2531020
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
113

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Source Citation:	McCammon, C. S.. 1990. Health Hazard Evaluation Report HETA 89-199-2033, Enseco, Inc., Rocky Mountain Analytical
Laboratory, Arvada, Colorado.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	2531033
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
Analytic Method:
Use
Laboratory solvent
vapor
inhalation
0.8-8.5 ppm (personal); 3.1-4.9 ppm (area)
TWA
various
personal
various
various
charcoal tubes/GS
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X 1
x 2
x 2
x 1
1
2
6
1
US
Lab uses in scope
1989, prior to most recent PEL
discrete samples available
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Exposure frequency not given, other metadata available
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Medium

1.8

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— continued from previous page
Source Citation:	McCammon, C. S.. 1990. Health Hazard Evaluation Report HETA 89-199-2033, Enseco, Inc., Rocky Mountain Analytical
Laboratory, Arvada, Colorado.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	2531033
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:
Type of Data Source
Hero ID
Hall, R. M.,Sheehy, J. W.. 1992. Walk-Through Survey Report: Control of Methylene Chloride in Furniture Stripping at Jet
Strip, Boulder, Colorado, August 1, 1991.
Occupational Exposure; Monitoring Data;
2531076
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Type of Sampling:
Analytic Method:
Use
Furniture Stripping
liquid, vapor
inhalation
25-68
3
1
Stripping furniture
personal, area
NIOSH Method 1005
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH Method 1005
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Workplace that uses Methylene Chloride
1995, 26 years old and prior to most recent PEL
Poorly characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No sampling time or other pertinent metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^
Medium

2.1

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Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Hall, R. M.,Sheeny, J. W.. 1992. Walk-Through Survey Report: Control of Methylene Chloride in Furniture Stripping at Jet
Strip, Boulder, Colorado, August 1, 1991.
Occupational Exposure; Monitoring Data;
2531076

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Mccammon, CS; Goldfield, J. 1993. Health Hazard Evaluation Report HETA 92-0360-2372, Ackerman and Sons, Littleton,
Colorado. NTIS/02989953_2.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	2531126
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Use
Furniture Stripping
liquid, vapor
inhalation
Before controls: 37 = 445 After Controls: ND - 110
Area: 28Personal: 14
1
TWA
Paint/finish stripping furniture, cleaning it post stripping
5
personal, area
Stripping and washing station
3-4 hours a day max
Generally a few hours per week.
Added exhaust ventilation
Rubber aprons, gauntlets, full shields,
NIOSH Method 1005
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Method 1005
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1993, 25 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
Appropriate characterization included
Domain 3: Accessibility/Clarity
Continued on next page
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Source Citation:
Type of Data Source
Hero ID
Mccammon, CS; Goldfield, J. 1993. Health Hazard Evaluation Report HETA 92-0360-2372, Ackerman and Sons, Littleton,
Colorado. NTIS/02989953_2.
Occupational Exposure; Monitoring Data;
2531126
EVALUATION
Domain
Metric
Rating
MWF* Score Comments

Metric 6; Metadata Completeness
High
X 1 1 Complete Metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
X 1 2 Uncertainty addressed in NIOSH Method
Overall Quality Determination^
High
1.6

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Golsteijn, L.,Huizer, D.,Hauck, M.,van Zelm, R.,Huijbregts, M. A.. 2014. Including exposure variability in the life cycle
impact assessment of indoor chemical emissions: the case of metal degreasing. Environment International.
Type of Data Source Occupational Exposure; Published Models for Exposures or Releases;
Hero ID 2537636
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Worker Activity:
Life Cycle Assessment
Indoor chemical emissions
vapor
vapor degreasing - modeling
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Peer reviewed, well referenced.
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
High
High
N/A
X 1
x 2
x 2
2
2
2
N/A
EU
Encompasses workplace exposure
2014
N/A - modeling approach
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Rationale and approach are well detailed.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
x 1
2
Unclear in the data how it is characterized, but there is a sig-
nificant analysis of the limitations of the model.
Overall Quality Determination^
High
1.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:	Kowalska, J.,Gierczak, T.. 2013. Qualitative and Quantitative Analyses of the Halogenated Volatile Organic Compounds
Emitted from the Office Equipment Items. Indoor and Built Environment.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	2655630
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Domain 2: Representative
Metric 2: Geographic Scope
Metric 3: Applicability
Use
Offgassing
Gas
inhalation
0.04 - 1.24 ug/m3Mean: 0.51 ug/m3
16
Worker Activity:

Standard Office Supplies
Sampling Location:

Lab
Exposure Duration:

Full-shift
Exposure Frequency:

Continuous
Analytic Method:

Described, but not named
EVALUATION


Domain
Metric
Rating MWF* Score Comments
Domain 1: Reliability


Metric 1:
Methodology
Medium X 1 2 Described, but not named
Medium x 1
Medium x 2
Metric 4: Temporal Representativeness High x 2
Metric 5: Sample Size	Medium x 1
2 Poland
4	Workplace scenario that indirectly exposes employees to
Methylene Chloride
2 2013, 5 years old
2	Decent characterization
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High x
1 1
Well documented
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x
1 3
Does not address variability and uncertainty.


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page

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Source Citation:	Kowalska, J.,Gierczak, T.. 2013. Qualitative and Quantitative Analyses of the Halogenated Volatile Organic Compounds
Emitted from the Office Equipment Items. Indoor and Built Environment.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	2655630
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Overall Quality Determination^

Medium 1.8


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:	Yamada, K.,Kumagai, S.,Nagoya, T.,Endo, G.. 2014. Chemical exposure levels in printing workers with cholangiocarcinoma.
Journal of Occupational Health.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	2797854
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Print Blanket Cleaning
Physical Form:	liquid, vapor
Route of Exposure:	inhalation
Exposure Concentration (Unit):	Estimated:0-340 ppm
Number of Sites:	3
Type of Measurement or Method:	Retrospective Estimations
Worker Activity:	Solvent based cleaning
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Estimated based on Near Field /Far Field Model
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
Japan
Metric 3:
Applicability
Low
x 2
6
Retroactive look at a workplace scenario
Metric 4:
Temporal Representativeness
Low
x 2
6
2014, but uses old data
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Unacceptable
x 1
4
No sampling technique used - no metadata as a result.
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Does not address variability and uncertainty.
Overall Quality Determination^	Unacceptable	4 Metric Mean Score: 2.8.
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Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Yamada, K.,Kumagai, S.,Nagoya, T.,Endo, G.. 2014. Chemical exposure levels in printing workers with cholangiocarcinoma.
Journal of Occupational Health.
Occupational Exposure; Completed Exposure or Risk Assessments;
2797854
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Source Citation: Yamada, K.,Kumagai, S.,Kubo, S.,Endo, G.. 2015. Chemical exposure levels in printing and coating workers with cholangio-
carcinoma (third report). Journal of Occupational Health.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID 3064878
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Use
Print Blanket Cleaning
liquid, vapor
inhalation
Estimated: 20-470 ppmEstimated Max: 300-980 ppm
N/a
2
Retrospective Estimations
Solvent based cleaning
5
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Estimated based on Near Field /Far Field Model
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
Low
Low
Low
X 1
x 2
x 2
x 1
2
6
6
3
Japan
Retroactive look at a workplace scenario
2015, but estimates old data
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Unacceptable
x 1
4
No sampling technique used - no metadata as a result.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Does not address variability and uncertainty.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.8.

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page

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Yamada, K.,Kumagai, S.,Kubo, S.,Endo, G.. 2015. Chemical exposure levels in printing and coating workers with cholangio-
carcinoma (third report). Journal of Occupational Health.
Occupational Exposure; Completed Exposure or Risk Assessments;
3064878
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Source Citation:	Yamada, K.,Kumagai, S.,Endo, G.. 2015. Chemical exposure levels in printing workers with cholangiocarcinoma (second
report). Journal of Occupational Health.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3064883
EXTRACTION
Parameter
Data
Life Cycle Stage:
Use
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Workers:
Print Making
Estimated: 0-440
7
ppm

EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
No analytical method given
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
Medium
High
X 1
x 2
2
2
Japan
Workplace scenario that exposed employees to Methylene Chlo-
Metric 4:
Metric 5:
Temporal Representativeness
Sample Size
High
Low
x 2
x 1
2
3
2015
Not characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Hazy understanding of where statistics come from.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
x 1
2
Discuss variability and uncertainty
Overall Quality Determination^
Medium

1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
127

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Source Citation: NIOSH. 1995. Health hazard evaluation report HETA 91-0040-2510, Kraft General Foods, Inc., Maxwell House Coffee, Co.,
Houston, Texas. Technical Report NIOSH/00228254.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID 3102344
EXTRACTION
Parameter

Data

Worker Activity:

Coffee Decaffeinating

EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Unacceptable
X 1
4
No relevant methodology for DCM
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Unacceptable
Low
Low
X 1
x 2
x 2
x 1
1
8
6
3
US
Methylene Chloride discontinued in operation years earlier
1990
range provided from previous study
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
8-hr TWA personal samples
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Does not address variability and uncertainty.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 3.1.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, two of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:
Type of Data Source
Hero ID
EXTRACTION
Parameter Data
Life Cycle Stage: Use
Life Cycle Description (Subcategory of Use): Print Blanket Cleaning
Physical Form: liquid, vapor
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Low
X 1
3
Techniques not specified
Domain 2: Representative

Metric 2:
Geographic Scope
Medium
X 1
2
Japan
Metric 3:
Applicability
Unacceptable
x 2
8
Retroactive look at a workplace scenario but only examines

chemicals purchased
Metric 4:
Temporal Representativeness
High
x 2
2
2016
Metric 5:
Sample Size
N/A

N/A
N/A - no sample data
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
x 1
4
No sampling technique used - no metadata as a result.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.8.

** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, two of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Tsukahara, T.,Miyauchi, H.,Kuwada, D.,Kikuchi, T.,Tsuda, Y.,Yanagiba, Y.,Arito, H.,Nomiyama, T.. 2016. Control banding
assessment of exposure of offset printing workers to organic solvents. Journal of Occupational Health.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3419932
129

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tobiszewski, M.,NamieAnik, J.. 2013. Distribution of volatile organohalogen compounds in petrochemical plant water streams.
Chemistry and Ecology.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3490937
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Analytic Method:
Use
Cleaning solvent (Petroleum Industry)
liquid
1-270 ug/L
55
11
Described, but not named
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Described, but not named
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
Poland
Metric 3:
Applicability
Low
x 2
6
Workplace scenario that exposes employees to Methylene Chlo-





ride, but is focused on environmental sampling
Metric 4:
Temporal Representativeness
High
x 2
2
2013, 5 years old
Metric 5:
Sample Size
Low
x 1
3
Little Charcterization
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Not always clear.
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Medium
x 1
2
Limited Discussion.
Overall Quality Determination^
Medium

2.1


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
130

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Niu, Z. G.,Xu, S. Y.,Gong, Q. C.. 2014. Health risk assessment of odors emitted from urban wastewater pump stations in
Tianjin, China. Environmental Science and Pollution Research.
Occupational Exposure; Monitoring Data;
3492550
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Ambient Environment
Wastewater treatment
vapor
inhalation
7.4-89.95 ug/m3
16
1
area
Waste Water Pump Storage Tank
Continous
Varies
USEPA1999
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
USEPA1999
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Low
Low
High
Low
X 1
x 2
x 2
x 1
3
6
2
3
China
Environmental sampling of waste water pump
2014
Limited
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Limited
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
x 1
2
Addressed in USEPA method
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Niu, Z. G.,Xu, S. Y.,Gong, Q. C.. 2014. Health risk assessment of odors emitted from urban wastewater pump stations in
Tianjin, China. Environmental Science and Pollution Research.
Occupational Exposure; Monitoring Data;
3492550
EVALUATION
Domain
Metric Rating MWF* Score Comments
Overall Quality Determination^ Medium 2.2

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Beaucham, C. C.,Fent, K.,Wiegand, D.,Seaton, M.. 2016. Hazard Evaluation Report: HHE-2012-0238-3257, August 2016.
Evaluation of Forensic Crime Lab Employees' Chemical Exposures, Job Stress, and Work-Related Health Concerns.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 3520311
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Sites:
Worker Activity:
Number of Workers:
Sampling Location:
Exposure Duration:
Exposure Frequency:
PPE:
Use
Use of Adhesives in Crime Scene Model Building
Liquid, Vapor
Inhalation, dermal
None Detected
1
Transferring methylene chloride, using methylene chloride to bond plas-
tics.
800
Operational Projects Unit, Latent Prints Operational Unit
Varies
Varies
Use proper gloves
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Low
X 1
3
No listed methods
Domain 2: Representative

Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Low
x 2
6
Certain departments used Methylene Chloride on a regular

bases to build their projects, but not representative of com-

mercial/industrial adhesive use.
Metric 4:
Temporal Representativeness
High
x 2
2
2016
Metric 5:
Sample Size
Low
x 1
3
Unknown amount of samples or further details.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Low
x 1
3
No clear statement about any of the methods, data, etc.
Domain 4: Variability and Uncertainty
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Beaucham, C. C.,Fent, K.,Wiegand, D.,Seaton, M.. 2016. Hazard Evaluation Report: HHE-2012-0238-3257, August 2016.
Evaluation of Forensic Crime Lab Employees' Chemical Exposures, Job Stress, and Work-Related Health Concerns.
Occupational Exposure; Monitoring Data;
3520311
EVALUATION
Domain
Metric Rating MWF* Score Comments
Metric 7: Metadata Completeness Low x 1 3 Not discussed.
Overall Quality Determination1 Low 2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
134

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Perbellini, L.,Brugnone, F.,Grigolini, L.,Cunegatti, P.,Tacconi, A.. 1977. ALVEOLAR AIR AND BLOOD
DICHLOROMETHANE CONCENTRATION IN SHOE SOLE FACTORY-WORKERS. International Archives of Occupa-
tional and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3586319
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Use
Polyurethane shoe sole production
liquid, vapor
inhalation
39-730 mg/m3
15
grasp samples - short term?
molds filling, soles extraction, and soles polishing
15
area
moulds filling, soles extraction, and soles polishing stations
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
Low
x 1
Methods qualitatively explained but not clear nor current
Domain 2: Representative
Metric 2
Metric 3
Metric 4
Metric 5
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium x	1	2	Italy
High	X	2	2	Workplace that has potential exposure to employees
Low	X	2	6	Report from 1977 - prior to most recent PEL
Medium X	1	2	Some sampling areas were just given as a range
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	x 1	3 very basic meta data
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Low	x 1	3 None addressing data
Continued on next page
135

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Perbellini, L.,Brugnone, F.,Grigolini, L.,Cunegatti, P.,Tacconi, A.. 1977. ALVEOLAR AIR AND BLOOD
DICHLOROMETHANE CONCENTRATION IN SHOE SOLE FACTORY-WORKERS. International Archives of Occupa-
tional and Environmental Health.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3586319
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Overall Quality Determination^	Low	2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
136

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	He, P.,Tang, J.,Zhang, D.,Zeng, Y.,Shao, L.. 2010. Release of volatile organic compounds during bio-drying of municipal solid
waste. Journal of Environmental Sciences.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3587321
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Ambient Environment
Municipal Solid Waste Drying
Vapor
Inhalation
ND-2.01 mg/m3
area
Waste site
Varies
Varies
Described, but not named
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
None Noted
Domain 2: Representative





Metric 2:
Geographic Scope
Low
X 1
3
China
Metric 3:
Applicability
Medium
x 2
4
Focuses on medical impact not work environment.
Metric 4:
Temporal Representativeness
High
x 2
2
2010
Metric 5:
Sample Size
Low
x 1
3
Limited
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Limited
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^
Low

2.3

Continued on next page
137

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	He, P.,Tang, J.,Zhang, D.,Zeng, Y.,Shao, L.. 2010. Release of volatile organic compounds during bio-drying of municipal solid
waste. Journal of Environmental Sciences.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3587321
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Enander, R. T.,Cohen, H. J.,Gute, D. M.,Brown, L. C.,Desmaris, A. M.,Missaghian, R.. 2004. Lead and methylene chloride
exposures among automotive repair technicians. Journal of Occupational and Environmental Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3588270
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Exposure Duration:
Analytic Method:
Use
Paint Stripping
Liquid, Vapor
Inhalation, dermal
26-120 ppm
2	TWA, 3 short term
3
8hr TWA and short term
Paint stripping
1
Personal
N/a
NIOSH method P&CAM 127
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH method P&CAM 127
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Automotive Paint Stripping
Metric 4:
Temporal Representativeness
Medium
x 2
4
2004, 14 years old
Metric 5:
Sample Size
Medium
x 1
2
Limited data to work with.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Very basic metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Medium
x 1
2
Addressed in NIOSH method
Continued on next page
139

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Enander, R. T.,Cohen, H. J.,Gute, D. M.,Brown, L. C.,Desmaris, A. M.,Missaghian, R.. 2004. Lead and methylene chloride
exposures among automotive repair technicians. Journal of Occupational and Environmental Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3588270
EVALUATION
Domain
Metric
Rating MWF* Score
Comments

Overall Quality Determination^

Medium 1.7


* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
140

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Estill, C. F.,Watkins, D. S.,Shulman, S. A.,Kurimo, R. W.,Kovein, R. J.. 2002. Engineering controls for furniture strippers
to meet the OSHA methylene chloride PEL. AIHAJ.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 3588505
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Engineering Control & percent Exposure Reduction:
Analytic Method:
Use
Furniture Stripping
liquid, vapor
inhalation
Pre-ventilation: geometric mean 39-332 ppmPost-ventilation: geo.
Mean: 5.6 ppm
105
1
TWA
Furniture Stripping
personal, area
No controls in the first 4 sampling events, but new ventilation system
on the 5th.
NIOSH 1005 and OSHA 80
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH 1005 and OSHA 80
Domain 2: Representative
Metric 2:
Metric 3:
Geographic Scope
Applicability
High
High
X 1
x 2
1
2
US
Workplace scenario that exposes employees to Methylene Chlo-
Metric 4:
Metric 5:
Temporal Representativeness
Sample Size
Medium
Medium
x 2
x 1
4
2
2002, 16 years old
Characterized by a range, but also provides geometric mean.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Has baseline metadata
Domain 4: Variability and Uncertainty
Continued on next page
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Estill, C. F.,Watkins, D. S.,Shulman, S. A.,Kurimo, R. W.,Kovein, R.
to meet the OSHA methylene chloride PEL. AIHAJ.
Occupational Exposure; Monitoring Data;
3588505
J.. 2002. Engineering controls for furniture strippers
EVALUATION
Domain
Metric Rating MWF* Score
Comments

Metric 7; Metadata Completeness Medium x 1 2
Method addresses variability and uncertainty.
Overall Quality Determination^ High 1.6

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
142

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Uang, S. N.,Shih, T. S.,Chang, C. H.,Chang, S. M.,Tsai, C. J.,Deshpande, C. G.. 2006. Exposure assessment of organic
solvents for aircraft paint stripping and spraying workers. Science of the Total Environment.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 3589081
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Use
Airplane stripping
liquid, vapor
inhalation
Personal Average: 116.09 ppm w/SD of 40.21 ppmArea Average: 84.07
ppm w/SD of 64.86
33
1
TWA
Stripping aircraft paint
personal, area
12 hour shifts
varies
Ceiling and floor fans/exhaust.
Respirators
CLA-1210 (council of labor affairs)
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X 1
1
Method cited and described.
Domain 2: Representative

Metric 2:
Geographic Scope
Low
X 1
3
Taiwan
Metric 3:
Applicability
High
x 2
2
Workplace scenario that exposes employees to Methylene Chlo-

ride
Metric 4:
Temporal Representativeness
Medium
x 2
4
2005, 13 years old
Metric 5:
Sample Size
Medium
x 1
2
Provides an average for a series of data sets.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Medium
x 1
2
Has baseline metadata
Continued on next page
143

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Uang, S. N.,Shih, T. S.,Chang, C. H.,Chang, S. M.,Tsai, C. J.,Deshpande, C. G.. 2006. Exposure assessment of organic
solvents for aircraft paint stripping and spraying workers. Science of the Total Environment.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3589081
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Low	x 1	3 None addressing data
Overall Quality Determination^
Medium
1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
144

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Ryan, T. J.. 2002. Survey of waste comminglers' VOC exposures. Journal of the Air and Waste Management Association
(1990-1992).
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3589795
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Disposal
Laboratory disposal
liquid, vapor
inhalation
personal: 0.4 - 557.0 ppmarea: 0.1 - 809.9
personal: 33area: 32
12
TWA
dumping lab waste into 55 gal drums
personal, area
Hazardous Waste Container Sites
varies
varies
varies
varies
EPA Method 8260B
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EPA Method 8260B
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Medium
x 2
4
Report form 2002
Metric 5:
Sample Size
Medium
x 1
2
Were not provided with each data point
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
meta data was given as ranges (time, exposure, etc.)
Continued on next page
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Ryan, T. J.. 2002. Survey of waste comminglers' VOC exposures. Journal of the Air and Waste Management Association
(1990-1992).
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3589795
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Medium X 1	2 Discussion on limitations and variations.
Overall Quality Determination^
Medium
1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
146

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Grevenkamp, A.,Occupational, Safety,Health, Administration. 2007. Overexposure and control of methylene chloride in a
furniture stripping operation. Journal of Occupational and Environmental Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3590014
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
PPE:
Use
Furniture Stripping
vapor
inhalation
First visit: 108 ppm (8-hr TWA); 153-634 ppm (STEL); Follow up: 61
ppm (8-hr TWA); 330-380 ppm (STEL) - additional data for various
visits
various
1
TWA
furniture stripping
1
personal
full-face elastomeric respiratorwith organic vapor cartridges and imper-
vious gloves and an apron
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Furniture Stripping
Metric 4:
Temporal Representativeness
Medium
x 2
4
2007 - more than 10 years old
Metric 5:
Sample Size
High
x 1
1
Individual data points
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
provided key information
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Low	X 1	3 No discussion on uncertainty and variability
Overall Quality Determination^	High	1.4
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Grevenkamp, A.,Occupational, Safety,Health, Administration. 2007. Overexposure and control of methylene chloride in a
furniture stripping operation. Journal of Occupational and Environmental Hygiene.
Occupational Exposure; Monitoring Data;
3590014
148

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Lewis, F. A.. 1980. Health Hazard Evaluation Determination, Report No. HHE-79-141-711, Fischer and Porter Company,
Warminster, Pennsylvania.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3653519
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Exposure Duration:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Use
Epoxy use for wire coating (instrumentation inside of water pipes)
Vapor
Inhalation
Undetected
16
1
8 hr TWA
Mixing Epoxy
Personal, Area
8 hour shift
Laboratory Hood Fans
Protective Gloves
NIOSH Method P&CAM #127
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
High
X
1
1
NIOSH Method P&CAM #127
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
X
2
6
1979, 39 years old and prior to most recent PEL
Metric 5:
Sample Size
Low
X
1
3
No methylene chloride was detected, no specific data about






where samples were taken.
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Medium
X
1
2
Missing sample durations and other metadata
Domain 4: Variability and Uncertainty
Continued on next page
149

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Lewis, F. A.. 1980. Health Hazard Evaluation Determination, Report No. HHE-79-141-711, Fischer and Porter Company,
Warminster, Pennsylvania.
Occupational Exposure; Monitoring Data;
3653519
EVALUATION
Domain
Metric Rating
MWF* Score Comments

Metric 7; Metadata Completeness Medium
X 1 2 Uncertainty addressed in NIOSH Method
Overall Quality Determination^ Medium
1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
150

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Source Citation:	Hall, RM; Martinez, KF; Jensen, PA. 1995. Control of methylene chloride"furniture stripping dip tank. Applied Occupational
and Environmental Hygiene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3808905
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Exposure Duration:
Use
Furniture Stripping
vapor
inhalation
7-67 ppm 8-hr TWA
27
1
TWA
furniture dip stripping
2
personal
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
furniture dip stripping
Metric 4:
Temporal Representativeness
Low
x 2
6
1995 - more than 20 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
Individual data points
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
concentration ranges and sampling time provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Medium
x 1
2
Some discussion of uncertainty and variability
Continued on next page
151

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Hall, RM; Martinez, KF; Jensen, PA. 1995.
and Environmental Hygiene.
Occupational Exposure; Monitoring Data;
3808905
Control of methylene chloride" furniture stripping dip tank. Applied Occupational
EVALUATION
Domain
Metric
Rating
MWF* Score Comments
Overall Quality Determination^
Medium
1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
152

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Source Citation:	IARC. 2010. Occupational exposure as a painter. IARC monographs on the evaluation of carcinogenic risks to humans.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3808946
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Use
Paint Stripping
vapor
inhalation
633-1,017 mg/m3 (TWA)
7
TWA
Paint Stripping - Non-Specific Workplace Settings
3
personal
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
IARC, 2010
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Medium
X 1
x 2
x 2
x 1
1
2
6
2
US
Paint Stripping
1980 - more than 20 years old
ranges provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
range provided - breathing zone
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
uncertainy and variability not discussed
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
153

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Source Citation:	Eu,. 2007. Impact assessment of potential restrictions on the marketing and use of dichloromethane in paint strippers. Revised
final report-Annexes.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3808951
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Use
Paint Stripping
vapor
inhalation
2.2-428 mg/m3 (8-hr TWA)
4
TWA
Non-Specific Workplace Settings - Unknown
personal
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EU, 2007
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
Finland
Metric 3:
Applicability
High
x 2
2
Paint Stripping
Metric 4:
Temporal Representativeness
Low
x 2
6
1997-1998 - more than 20 years old
Metric 5:
Sample Size
High
x 1
1
Individual data points
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
personal samples
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Medium
x 1
2
Some discussion of uncertainty and variability
Overall Quality Determination^
Medium

1.8

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
154

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Source Citation:	Oecd,. 2011. SIDS initial assessment profile: Dichloromethane (methylene chloride).
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3808975
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
All uses
Vapor
Inhalation
0.004-318 mg/m3
All uses
EVALUATION



Domain
Metric
Rating
MWF* Score Comments
Domain 1: Reliability



Metric 1:
Methodology
High
X 1 1 SIDS Initial Assessment Profile
Domain 2: Representative
Metric 2
Metric 3
Metric 4
Metric 5
Geographic Scope	Medium	x 1	2
Applicability	Medium	x 2	4
Temporal Representativeness	Low	x 2	6
Sample Size	Low	x 1	3
Europe
no particular OES specified
unknown
range provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Unacceptable x 1	4 no discussion of data
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3
no discussion of uncertainy or variability
Overall Quality Determination^
Unacceptable
4
Metric Mean Score: 2.6.

** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
155

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Source Citation:	NIOSH. 1991. In-depth survey report. The control of methylene chloride in furniture stripping at Association for Retarded
Citizens Washington County Chapter, Inc. Technical Report ECTB number: 170-18a.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3808979
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
Use
Furniture Stripping
vapor
inhalation
613-1,152 ppm (various sample times, existing ventilation); 13-27 ppm
(8-hr TWA, modified ventilation)
12
1
furniture stripping
personal
various
various
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Furniture Stripping
Metric 4:
Temporal Representativeness
Low
x 2
6
1991 - more than 20 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
Individual data points
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
provides key information
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Medium
x 1
2
Some discussion of uncertainty and variability
Continued on next page
156

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— continued from previous page
Source Citation:	NIOSH. 1991. In-depth survey report. The control of methylene chloride in furniture stripping at Association for Retarded
Citizens Washington County Chapter, Inc. Technical Report ECTB number: 170-18a.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3808979
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Overall Quality Determination^

High 1.6


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
157

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Source Citation:	U.S, E. P. A.. 2014. TSCA work plan chemical risk assessment, methylene chloride: paint stripping use.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809029
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Paint Stripping
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EPA Risk Assessment
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US facilities
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
High
x 2
2
data from 2014
Metric 5:
Sample Size
Medium
x 1
2
statistics given, discrete data not available
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
use in scope
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
High
x 1
1
detailed uncertainty section
Overall Quality Determination^	High	1.1
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
158

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Source Citation:
Type of Data Source
Hero ID
Niosh,. 1992. Health Hazard Evaluation.
Occupational Exposure; Monitoring Data;
3809433
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Exposure Duration:
Exposure Frequency:
PPE:
Analytic Method:
Use
Paint stripping
liquid, vapor
inhalation
ND-523 ppm
42
1
short term and TWA
Stripping furniture
5
Personal, area
Variable
Variable
rubber aprons, full length rubber gauntlets, a face shield, and plastic
upper arm covers
NIOSH method #1005
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Niosh Method #1005
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace scenario that exposes employees to Methylene Chlo-





ride
Metric 4:
Temporal Representativeness
Low
x 2
6
1995, 23 years old and prior to most recent PEL
Metric 5:
Sample Size
Medium
x 1
2
Decent characterization
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
Complete Metadata

Continued on next page
159

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Niosh,. 1992. Health Hazard Evaluation.
Occupational Exposure; Monitoring Data;
3809433


EVALUATION
Domain
Metric
Rating
MWF* Score Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
X 1 2 Method addresses variability and uncertainty.
Overall Quality Determination^
Medium
1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Occupational Exposure; Completed Exposure or Risk Assessments;
3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Manufacture
Manufacture
Vapor
Inhalation
219-374 mg/m3
Maintenance
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
manufacturing in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
161

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Occupational Exposure; Completed Exposure or Risk Assessments;
3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Manufacture
Manufacture
Vapor
Inhalation
3.5->35 mg/mg3 (8-hr TWA)
Production personnelPlant & packagingpersonnel
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
manufacturing in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
162

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Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Processing
Formulation of Products
Aerosols
Inhalation
<180 mg/m3
Filling and packing
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
formulation in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
163

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Source Citation:
Type of Data Source
Hero ID
Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Occupational Exposure; Completed Exposure or Risk Assessments;
3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Adhesives
aerosol
Inhalation
3.5 to 1,500 mg/m3
Spray Adhesives
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
Adhesive use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
164

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Consumer Paint Stripping
Aerosols
Inhalation
35-14,100 mg/m3; majority <1770 mg/m3
Consumer Paint Stripping
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
No Comment.
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^	Low	2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
165

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Consumer Paint Stripping with good ventilation (assumed to be same
for occuapational exposures in report)
Vapor
Inhalation
460-2980 mg/m3 (8-hr TWA) unventilated; 60-400 mg/m3 (8-hr TWA)
ventilated
Consumer Paint Stripping with good ventilation
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
No Comment.
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
166

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Occupational Exposure; Completed Exposure or Risk Assessments;
3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Stripping
Vapor
Inhalation
18-7000 mg/m3 (8-hr TWA)
Immersion stripping of wood
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
No Comment.
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
167

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Occupational Exposure; Completed Exposure or Risk Assessments;
3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Paint Stripping
Aerosols
Inhalation
98-321 mg/m3 (8-hr TWA)
Aircraft paint stripping
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
No Comment.
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
168

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Stripping
Vapor
Inhalation
<350 mg/m3
Immersion stripping of metal (with appropriate protection measures)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
No Comment.
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
169

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Furniture Stripping
Vapor
Inhalation
25-3812 mg/m3 (8-hr TWA)
Furniture Stripping (without adequate control measures)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
No Comment.
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^	Low	2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
170

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Cleaning agent in foam industry or aux blowing agent, releasing agent
in PU molding
Vapor
Inhalation
7-1,770 mg/m.1
Cleaning agent in foam industry or aux blowing agent, releasing agent
in PU molding
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
PU foam
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
171

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Occupational Exposure; Completed Exposure or Risk Assessments;
3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Pharmaceuticals
Vapor
Inhalation
3.5-106 mg/m3
Pharmaceutical processing
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
pharmaceuticals in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
172

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Use
Cellulose Triacetate and Film Base Production
Vapor
Inhalation
0-350 mg/m3 (8-hr TWA)
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
Not Specified
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
High
Low
Medium
X 1
x 2
x 2
x 1
2
2
6
2
data from EU
Use in scope
Report from 1999 but many data sources are from earlier
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^	Low	2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
173

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Occupational Exposure; Completed Exposure or Risk Assessments;
3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Manufacture
Manufacture/Distribution
Vapor
Inhalation
3.5-63 mg/mg3 (8-hr TWA)
Production personnelPlant & packagingpersonnelTanker drivers:
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
manufacturing in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
174

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data



Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Processing
Other Chemical Processing (closed systems)
Vapor
Inhalation
23 mg/m3 (8-hr TWA)
EVALUATION
Domain Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1: Methodology
Low
X 1
3
Not Specified
Domain 2: Representative
Metric 2: Geographic Scope
Metric 3: Applicability
Metric 4: Temporal Representativeness
Metric 5: Sample Size
Medium
High
Low
Medium
X 1
x 2
x 2
x 1
2
2
6
2
data from EU
Use in scope
Report from 1999 but many data sources are from earlier
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low

2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Degreasing
Vapor
Inhalation
14-1000 mg/m3; mean 280 mg/m3
Cold Degreasing
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
degreasing in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
176

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Food extraction (also similar to other open industrial applications such
as printing, gauze and fabric coating)
Vapor
Inhalation
110 mg/m3
Food extraction (also similar to other open industrial applications such
as printing, gauze and fabric coating)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
177

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Personal care aerosol use (hairspray, insect repellent)
aerosol
Inhalation
7 mg/m3 (8-
Personal care aerosol use (hairspray, insect repellent)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^	Low	2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
178

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Aerosols in unventilated room (Dow)
aerosol
Inhalation
77.7 mg/m3
Aerosols in unventilated room (Dow)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^	Low	2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
179

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Tno,. 1999. Methylene chloride: Advantages and Drawbacks of Possible Market Restrictions in the EU.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	3809449
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Hair Care Products
aerosol
Inhalation
3.5-17.7 mg/m3 (8-hr TWA)
Professional salon use
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
data from EU
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
Report from 1999 but many data sources are from earlier
Metric 5:
Sample Size
Medium
x 1
2
Range and mean given, but no discrete data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
180

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Niosh,. 1990. Walk-through survey report: Control of methylene chloride in furniture stripping at Colonial Furniture Stripping,
Cincinnati, Ohio.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3809453
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Use
Furniture Stripping
liquid, vapor
inhalation
2 personal: 77, 100 ppm3 area: 90, 20, 63
5
1
1-hour TWA
Stripping furniture
1
personal, area
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH 1005
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that uses Methylene Chloride
Metric 4:
Temporal Representativeness
Low
x 2
6
1990, 28 years old and prior to most recent PEL
Metric 5:
Sample Size
Medium
x 1
2
Reasonably well characterized.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Has baseline metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^
Medium

1.9

Continued on next page
181

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Niosh,. 1990. Walk-through survey report: Control of methylene chloride in furniture stripping at Colonial Furniture Stripping,
Cincinnati, Ohio.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3809453
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
182

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Source Citation:	Niosh,. 1990. Walk-through survey report: Control of methylene chloride in furniture stripping at Colonial Furniture Stripping,
Cincinnati, Ohio.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3809453
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Exposure Duration:
Use
Furniture Stripping
vapor
inhalation
77-100 ppm (1-hr TWA)
2
1
1-hr TWA
furniture dip stripping
1
personal
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
furniture dip stripping
Metric 4:
Temporal Representativeness
Low
x 2
6
1990 - more than 20 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
Individual data points
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
Indicates sample type but no other metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
None addressing data
Continued on next page
183

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— continued from previous page
Source Citation:	Niosh,. 1990. Walk-through survey report: Control of methylene chloride in furniture stripping at Colonial Furniture Stripping,
Cincinnati, Ohio.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3809453
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Overall Quality Determination^

Medium 1.7


* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
184

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3827786
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Type of Sampling:
Use
Furniture Stripping
vapor
inhalation
39-332 ppm; 6 ppm (with controls installed)
stripping and rinsing using tank
not specified in review
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low	X 1	3 IARC 2016 - references Estill et al. 2002, method not specified
in IARC
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US data
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
Medium
X
2
4
data older than 10 years but after PEL
Metric 5:
Sample Size
Low
X
1
3
range given but no other statistics
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
Only sample and exposure type given
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
Not discussed.
Overall Quality Determination^	Medium	2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
185

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Source Citation:
Type of Data Source
Hero ID
Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3827786
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Type of Sampling:
Use
Furniture Stripping
vapor/aerosol
inhalation
44-647 ppm TWA; <2ppm (with controls installed)
spray stripping using compressed air
not specified in review
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
IARC 2016 - references Fairfax & Grevenkamp et al. 2007,






method not specified in IARC
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US data
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
High
X
2
2
data less than 10 years old (2007)
Metric 5:
Sample Size
Low
X
1
3
range given but no other statistics
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
Only sample and exposure type given
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
Not discussed.
Overall Quality Determination^
Medium


1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
186

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Type of Data Source
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3827786
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Paint Stripping
Physical Form:	vapor/aerosol
Route of Exposure:	Inhalation
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
method not specified in IARC
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US data
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Medium
x 2
4
data older than 10 years but after PEL
Metric 5:
Sample Size
Low
x 1
3
range given but no other statistics
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only sample and exposure type given
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
187

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3827786
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Use
Paint Stripping
vapor
inhalation
26-120 ppm TWA
TWA
chemical paint stripping
not specified in review
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
IARC 2016 - references Enander et al. 2004, method not spec-




ified in IARC
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US data
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Medium
x 2
4
data older than 10 years but after PEL
Metric 5:
Sample Size
Low
x 1
3
range given but no other statistics
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only sample and exposure type given
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
188

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3827786
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Use
Paint Stripping
vapor
inhalation
14-84 ppm (4-hr average)
TWA
Aircraft paint stripping
not specified in review
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
IARC 2016 - references Uang et al. 2006, method not specified






in IARC
Domain 2: Representative






Metric 2:
Geographic Scope
Low
X
1
3
data from China and Taiwan (non-OECD)
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
High
X
2
2
data 10 years old (2006)
Metric 5:
Sample Size
Low
X
1
3
range given but no other statistics
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
Only sample and exposure type given
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
Not discussed.
Overall Quality Determination^
Medium


2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
189

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3827786
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Use
Polyurethane Foam Blowing
vapor
inhalation
8 ppm TWA
TWA
mix and heat ingredients in oven
not specified in review
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
IARC 2016 - references Fairfax & Porter 2006, method not






specified in IARC
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US data
Metric 3:
Applicability
High
X
2
2
PU foam
Metric 4:
Temporal Representativeness
High
X
2
2
data 10 years old (2006)
Metric 5:
Sample Size
Low
X
1
3
single exposure concentration given, unclear if it is average,






max, min, or single discrete value
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
Only sample and exposure type given
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
Not discussed.
Overall Quality Determination^
Medium
1.9
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
190

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3827786
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Type of Sampling:
Use
Printing
vapor
inhalation
7 ppm
cleaning presses
not specified in review
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
IARC 2016 - references Lee et al. 2009, method not specified





in IARC
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US data
Metric 3:
Applicability
High
x 2
2
printing use in scope
Metric 4:
Temporal Representativeness
High
x 2
2
data less than 10 years old (2009)
Metric 5:
Sample Size
Low
x 1
3
single exposure concentration given, unclear if it is average,
max, min, or single discrete value
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low x 1
3 Only sample and exposure type given
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 Not discussed.
Overall Quality Determination^
Medium
1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
191

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID 3827786
EXTRACTION
Parameter Data
Life Cycle Stage: Use
Life Cycle Description (Subcategory of Use): Laboratory solvent
Physical Form: vapor
Route of Exposure: inhalation
Exposure Concentration (Unit): below LOD ( lppm)
Worker Activity: no details
Type of Sampling: not specified in review
EVALUATION
Domain Metric Rating MWF* Score Comments
Domain 1: Reliability
Metric 1: Methodology Low X 1 3 IARC 2016 - references Nomura et al. 2006 method not speci-
fied in IARC
Domain 2: Representative
Metric 2: Geographic Scope
Medium
X
1
2
data from Japan (OECD country)
Metric 3: Applicability
High
X
2
2
Lab uses in scope
Metric 4: Temporal Representativeness
Medium
X
2
4
data older than 10 years but after PEL
Metric 5: Sample Size
Low
X
1
3
Olny indicated as below LOD, no range, statistics, number of

samples, etc.
Domain 3: Accessibility/Clarity

Metric 6: Metadata Completeness
Low
X
1
3
Only sample and exposure type given
Domain 4: Variability and Uncertainty

Metric 7: Metadata Completeness
Low
X
1
3
Not discussed.
Overall Quality Determination^
Medium

2.2

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Type of Data Source
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3827786
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	All
Number of Workers:	1.4 million workers in USA in 1980s and 1990s
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
IARC document assumed to use appropriate methodology for
data gathering
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US data
applies to US workers
data over 20 years old
Only states "over 1.4 million workers" no other quantitative
data given
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
industry breakdown not provided, only gives total US workers
exposed
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^	Medium	2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Benaise, L. G.,Harrison, J. M.,Pearce, T. A.. 2006. Health hazard evaluation report no. HETA-2003-0300-2993, West Virginia
Department of Health and Human Resources - Webster Springs District Office.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3859371
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Sampling:
Sampling Location:
Analytic Method:
Environment
Office Work
vapor
inhalation
lower than estimated limit of qatification of 1 ppb
area
general office
NIOSH Method 2549
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Method 2549
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Unacceptable
x 2
8
Not an applicable work scenario
Metric 4:
Temporal Representativeness
Medium
x 2
4
2003, 15 years old
Metric 5:
Sample Size
Low
x 1
3
only indicated lower than LOD
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Very basic metadata
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^	Unacceptable	4 Metric Mean Score: 2.6.
Continued on next page
194

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Benaise, L. G.,Harrison, J. M.,Pearce, T. A.. 2006. Health hazard evaluation report no. HETA-2003-0300-2993, West Virginia
Department of Health and Human Resources - Webster Springs District Office.
Occupational Exposure; Monitoring Data;
3859371
195

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Love, J. R.,Kern, M.. 1981. Health hazard evaluation report no. HETA-81-065-938, METRO Bus Maintenance Shop,
Washington, DC.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3859376
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
Analytic Method:
Use
Dip tank Cleaning
vapor
Inhalation
None Detected
33
1
Painting and degreasing parts at a bus maintenance shop
17
personal, area
Paint, Degreasing, Welding, and soldering rooms.
Varies
Varies
Better ventilation suggeseted in all operations.
NIOSH Method S-329
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Method S-329
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1981, 37 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete samples given
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Missing exposure frequency and exposure duration per day but





has other key metadata (sample type and exposure type)

Continued on next page
196

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Love, J. R. ,Kern, M.. 1981. Health hazard evaluation report no.
Washington, DC.
Occupational Exposure; Monitoring Data;
3859376
HETA-81-065-938, METRO Bus Maintenance Shop,
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low X 1 3
Not discussed.
Overall Quality Determination^
Medium 1.8


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Love, J. R.,Kern, M.. 1981. Health hazard evaluation report no. HETA-81-065-938, METRO Bus Maintenance Shop,
Washington, DC.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3859376
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
Analytic Method:
Use
Painting
vapor
Inhalation
None Detected
33
1
Painting and degreasing parts at a bus maintenance shop
17
personal, area
Paint, Degreasing, Welding, and soldering rooms.
Varies
Varies
Better ventilation suggeseted in all operations.
NIOSH Method S-329
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Method S-329
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1981, 37 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete samples given
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Missing exposure frequency and exposure duration per day but





has other key metadata (sample type and exposure type)

Continued on next page
198

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Love, J. R. ,Kern, M.. 1981. Health hazard evaluation report no.
Washington, DC.
Occupational Exposure; Monitoring Data;
3859376
HETA-81-065-938, METRO Bus Maintenance Shop,
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low X 1 3
Not discussed.
Overall Quality Determination^
Medium 1.8


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: 2017. Pollution prevention search results, envirofacts database.
Type of Data Source Occupational Exposure; Environmental Release Data;
Hero ID 3860453
EXTRACTION
Parameter
Data



Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Everything
Everything



EVALUATION
Domain Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1: Methodology
High
X 1
1
Envirofacts, US EPA
Domain 2: Representative
Metric 2: Geographic Scope
Metric 3: Applicability
High
High
X 1
x 2
1
2
US
Many workplaces relating to the scope of this occupational see-
Metric 4: Temporal Representativeness
Metric 5: Sample Size
High
Medium
x 2
x 1
2
2
Variety of releases documented from 2015 and earlier.
Variety of release numbers from various companies with details
regarding industry and previous year's releases
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Maybe a 2. Release data is quantified per year, but has some
details about past year and process changes.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
High

1.6

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
200

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	1994. National emission standards for hazardous air pollutants: Halogenated solvent cleaning - Background information for
final standards.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3860538
EXTRACTION
Parameter	Data
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Unacceptable
x 1
4
No methodology
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Unacceptable
x 2
8
Discussion and Public Comment on 1994 NESHAP Halo-





genated Solvent Rules
Metric 4:
Temporal Representativeness
Low
x 2
6
1994
Metric 5:
Sample Size
Low
x 1
3
no exposure data
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Unacceptable
x 1
4
no exposure data
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
no exposure data
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 3.2.

** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, three of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
201

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
1994. Chemical summary for methylene chloride (dichloromethane).
Type of Data Source
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3860545
EXTRACTION

Parameter
Data
Life Cycle Stage:	EPA
Life Cycle Description (Subcategory of Use):	Chemical Summary
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
EPA - though there is a line that states: No attempt has been
made to verify information in these databases and secondary
sourced.
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Low
Low
Low
X 1
x 2
x 2
x 1
1
6
6
3
US
Overview of the DCM, production use, fate, etc.
1994, 24 years old
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No Comment.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination1
Low

2.6


* MWF = Metric Weighting Factor
f If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
202

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
1991. Waste minimization assessment for a
manufacturer of outdoor illuminated signs.
Type of Data Source
Occupational Exposure; Monitoring Data;

Hero ID
3860552

EXTRACTION

Parameter

Data
Life Cycle Stage: Use
Life Cycle Description (Subcategory of Use): Sign Painting
Physical Form: liquid
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X 1
1
EPA study
Domain 2: Representative

Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1991, 27 years old and prior to most recent PEL
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
x 1
4
No sampling was done.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.4.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
203

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1995. Determination of landfill gas composition and pollutant emission rates at Fresh Kills Landfill.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970170
EXTRACTION
Parameter	Data
Life Cycle Stage:	Post-use
Life Cycle Description (Subcategory of Use):	Landfill
Physical Form:	vapor
Route of Exposure:	inhalation
Exposure Concentration (Unit):	ND - 11.08 ppm
Number of Samples:	100+
Number of Sites:	1
Worker Activity:	None - landfill
Type of Sampling:	Area
Sampling Location:	Landfill
Exposure Duration:	Constant
Exposure Frequency:	Constant
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
None Noted
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Low
Low
Low
X 1
x 2
x 2
x 1
1
6
6
3
US
Focuses on air quality leaving landfill
1995, 13 years old and prior to most recent PEL
Limited
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Limited
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Limited
Overall Quality Determination1
Low

2.8

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— continued from previous page
Source Citation:	U.S, E. P. A.. 1995. Determination of landfill gas composition and pollutant emission rates at Fresh Kills Landfill.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970170
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
205

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
ToxNet Hazardous Substances Data, Bank. 2017. HSDB: Methylene chloride.
Type of Data Source
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3970276
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	All
Number of Workers:	1,438,196 workers in USA 1981-1983
EVALUATION



Domain
Metric
Rating
MWF* Score Comments
Domain 1: Reliability



Metric 1:
Methodology
High
X 1 1 HSDB (per NOES 1981-1983)
Domain 2: Representative
Metric 2: Geographic Scope
High
X
1
1
US
Metric 3: Applicability
Medium
X
2
4
Total workers in USA
Metric 4: Temporal Representativeness
Low
X
2
6
1981-1983
Metric 5: Sample Size
Low
X
1
3
no exposure data
Domain 3: Accessibility/Clarity





Metric 6: Metadata Completeness
Low
X
1
3
no exposure data
Domain 4: Variability and Uncertainty





Metric 7: Metadata Completeness
Low
X
1
3
no exposure data
Overall Quality Determination^
Low


2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
206

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Kanwal, R.,Boylstein, R. J.. 2006. Health hazard evaluation report no. HETA 2006-0059-3009, DaimlerChrysler Jefferson
North Assembly Plant, Detroit, Michigan.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970547
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Use
Automobile assembly
vapor
Inhalation
0.001 ppm
Field blanks for manual welding, welding repair
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Medium
Medium
High
X 1
x 2
x 2
x 1
1
4
4
1
US
autmotive assembly
2006
Individual data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
instantaneous sample
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
no discusion of uncertainty and variability
Overall Quality Determination^
Medium

1.8

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
207

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Tubbs, R. L.,Miller, A. K.. 1994. Health hazard evaluation report no. HETA 93-0608-2423 Unitron Industires, Inc., Port
Huron, Michigan.


Type of Data Source Occupational Exposure; Monitoring Data;


Hero ID 3970555


EXTRACTION


Parameter
Data

Life Cycle Stage:
Use

Life Cycle Description (Subcategory of Use):
Hearing aid mold making

Physical Form:
liquid, vapor

Route of Exposure:
inhalation

Exposure Concentration (Unit):
9.76-74.60 ppm

Number of Samples:
4

Number of Sites:
1

Type of Measurement or Method:
TWA

Worker Activity:
Hearing aid mold making

Number of Workers:
12

Type of Sampling:
personal

Sampling Location:
hearing aid mold making
areas
Exposure Duration:
8 hour shift

Exposure Frequency:
daily

Engineering Control & percent Exposure Reduction:
exhaust fans

Analytic Method:
NIOSH Methods 1003

EVALUATION


Domain Metric
Rating MWF* Score
Comments
Domain 1: Reliability


Metric 1: Methodology
High x 1 1
NIOSH Methods 1003,
Domain 2: Representative


Metric 2: Geographic Scope
High x 1 1
US
Metric 3: Applicability
High x 2 2
Workplace that has potential exposure to employees
Metric 4: Temporal Representativeness
Low x 2 6
1994, 24 years old and prior to most recent PEL
Metric 5: Sample Size
Medium x 1 2
Were not provided with each data point
Domain 3: Accessibility/Clarity


Metric 6: Metadata Completeness
Medium x 1 2
Basic Meta data given.
Continued on next page
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— continued from previous page
Source Citation:	Tubbs, R. L.,Miller, A. K.. 1994. Health hazard evaluation report no. HETA 93-0608-2423 Unitron Industires, Inc., Port
Huron, Michigan.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970555
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Medium X 1	2 Uncertainty addressed in NIOSH Method
Overall Quality Determination^
Medium
1.8

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
209

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Kiefer, M.,Driscoll, R. J.. 1998. Health hazard evaluation report no. HETA 97-0185-2675, McGregor Loudspeaker Manufac-
turing Company, Prarie du Chien, Wisconsin.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970559
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
PPE:
Analytic Method:
Use
Loudspeaker Manufacture
O-LOD
21
1
TWA
Speaker Assembly, various
160
Personal
various
workday
continuous
infrequent glove use
NIOSH 1300, 1500, 1005 and/or 1501
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH 1300, 1500, 1005 and/or 1501
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Medium
x 2
4
1998, 20 years old but after most recent PEL
Metric 5:
Sample Size
High
x 1
1
Data is well characterized.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
Complete Metadata
Domain 4: Variability and Uncertainty
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Kiefer, M.,Driscoll, R. J.. 1998. Health hazard evaluation report no.
turing Company, Prarie du Chien, Wisconsin.
Occupational Exposure; Monitoring Data;
3970559
HETA 97-0185-2675, McGregor Loudspeaker Manufac-
EVALUATION
Domain
Metric Rating MWF* Score
Comments

Metric 7; Metadata Completeness Medium x 1 2
EPA methods used discuss variability and uncetainty.
Overall Quality Determination^ High 1.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
211

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	McCammon, C.. 1990. Health hazard evaluation report no.HETA 89-199-2033, Enesco, Inc., Rocky Mountain Analytical
Laboratory, Arvada, Colorado.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970566
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Use
Standards Preparation (Laboratory)
vapor
Inhalation
.8-8.5ppm with peak at 4000ppm
23 breathing zone, 2 area
1
TWA and short term
Standards preparation
Personal, Area
Waste Dump, Wash Sink, Sample Storage Refrigerators
8 hour shift
Varies
Laboratory Hood Fans
Varies
NIOSH Methods
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Methods
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1989, 29 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
Data is well characterized.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
Complete Metadata
Continued on next page
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— continued from previous page
Source Citation:	McCammon, C.. 1990. Health hazard evaluation report no.HETA 89-199-2033, Enesco, Inc., Rocky Mountain Analytical
Laboratory, Arvada, Colorado.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970566
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Low	X 1	3 Variability and uncertainty not discussed.
Overall Quality Determination^
Medium
1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
213

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Burr, G. A.,Richardson, F. D.. 1988. Health hazard evaluation report no. HETA 87-250-1888, GTE Products Corporation,
Williamsport, Pennsylvania.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970567
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Samples:
Number of Sites:
Number of Workers:
Analytic Method:
Use
SEM Assembly and Testing
vapor
Inhalation
0, looked at company's previous IH sampling data
1
45
Accepted Industrial Hygiene Procedures
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Low	X 1	3 Accepted Industrial Hygiene Procedures
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
X
2
6
1988, 30 years old and prior to most recent PEL
Metric 5:
Sample Size
Low
X
1
3
Only referenced results from a private industrial hygenist, but
no specific samples mentioned.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Unacceptable x 1	4 A couple points of data were pulled from private IH dataset,
but with no background data.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3
Variability and uncertainty not discussed.
Overall Quality Determination^
Unacceptable
4
Metric Mean Score: 2.4.

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Burr, G. A.,Richardson, F. D.. 1988. Health hazard evaluation report no. HETA 87-250-1888, GTE Products Corporation,
Williamsport, Pennsylvania.
Occupational Exposure; Monitoring Data;
3970567
215

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Kiefer, M.,Driscoll, R. J.. 1998. Health hazard evaluation report no. HETA 97-0185-2675, McGregor Loudspeaker Manufac-
turing Company, Prarie du Chien, Wisconsin, Part 2.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970568
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Use
Solvent use
Vapor
Inhalation
conc. below detectable limit
11
1
TWA
Speaker Assembly
6
Personal, Area
workers on the assembly line
8 hour shift
M-F
NIOSH Methods
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH method
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Medium
x 2
4
1997, 21 years old but after most recent PEL
Metric 5:
Sample Size
High
x 1
1
11 samples taken
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Was not documented how long workers were working with





Methylene Chloride.

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Kiefer, M.,Driscoll, R. J.. 1998. Health hazard evaluation report no.
turing Company, Prarie du Chien, Wisconsin, Part 2.
Occupational Exposure; Monitoring Data;
3970568
HETA 97-0185-2675, McGregor Loudspeaker Manufac-
EVALUATION
Domain
Metric Rating MWF* Score
Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Medium x 1 2
Expressed uncertainty regarding conditions at different times
of the year.
Overall Quality Determination^ High 1.4

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
217

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Reh, C. M.,Lushniak, B. D.. 1990. Health hazard evaluation report no. HETA 87-350-2084, Trailmobile, Inc., Charleston,
Illinois.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970570
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
PPE:
Analytic Method:
Use
Polyurethane Foam Blowing
Liquid, vapor
Inhalation
1.3-5.1 ppm
5
1
foam operators
Personal
Foaming
8 hour shift
Coveralls, Gloves, half face respirators with organic vapor cartridges
NIOSH Method 1005
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH Method 1005
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X 1
x 2
x 2
x 1
1
2
6
1
US
Workplace that has potential exposure to employees
1990, 28 years old and prior to most recent PEL
discrete data given
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Not clear how frequently foaming operation (exposure activity)
is being done.
Domain 4: Variability and Uncertainty
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— continued from previous page
Source Citation:
Reh, C. M.,Lushniak, B. D.. 1990. Health hazard evaluation report
no. HETA 87-350-2084, Trailmobile, Inc., Charleston,

Illinois.


Type of Data Source
Occupational Exposure; Monitoring Data;


Hero ID
3970570


EVALUATION



Domain
Metric Rating
MWF* Score
Comments

Metric 7; Metadata Completeness Medium
X 1 2
Unceratainty addressed in NIOSH Method
Overall Quality Determination^	Medium	1.7
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
219

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Source Citation:
Type of Data Source
Hero ID
EXTRACTION
Parameter Data
Life Cycle Stage: Use
Life Cycle Description (Subcategory of Use): Degreasing and Metal Cleaning for Aircraft
Number of Sites: 1
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Unacceptable
X
1
4
Does not test for Methylene Chloride
Domain 2: Representative

Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Unacceptable
X
2
8
Methylene Chloride not referenced.
Metric 4:
Temporal Representativeness
Low
X
2
6
1993, 25 years old and prior to most recent PEL
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
X
1
4
No Comment.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
X
1
3
No Comment.
Overall Quality Determination^ Unacceptable 4 Metric Mean Score: 3.2.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, three of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Kiefer, M.,Bresler, F.,Salisbury,. 1993. Health hazard evaluation report no. HETA 92-0101-2341, Robins Air Force Base,
Warner Robins, Georgia.
Occupational Exposure; Monitoring Data;
3970572
220

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Source Citation: Harney, J. M.,Hess, J.,Reh, C. M.,Trout, D.. 2002. Health hazard evaluation report no. HETA 2000-0410-2891, STN Cusion
company, Thomasville, North Carolina.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 3970574
EXTRACTION
Parameter Data
Life Cycle Stage: Use
Life Cycle Description (Subcategory of Use): Sofa Cushions
Number of Sites: 1
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Unacceptable
X
1
4
Does not test for Methylene Chloride
Domain 2: Representative

Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Unacceptable
X
2
8
Methylene Chloride not referenced.
Metric 4:
Temporal Representativeness
Medium
X
2
4
2002, 16 years old
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
X
1
4
No Comment.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
X
1
3
No Comment.
Overall Quality Determination^ Unacceptable 4 Metric Mean Score: 3.0.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, three of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
221

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Source Citation:
Type of Data Source
Hero ID
Bicknell, R.,McManus, K. P.,Kaiser, E. A.,Konig, J. Fidler A. T.. 1989. Health hazard evaluation report no. HETA 87-075-
1988, American cyanamid, Wallingford, Connecticut.
Occupational Exposure; Monitoring Data;
3970576
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Use
Epoxy carrier (5 percent by volume), used on graphite fibers
Vapor
Inhalation
Air Concentration from 13.9-74.4 mg/m3. Respirators were used so does
not represent worker exposure
6 Breathing Zone, 8 area
1
8 hr TWA
Accessing mixing booth and sizing tanks that contain methylene chloride
56 participated in study, 19 currently exposed, 6 previously exposed.
Personal, Area
8 locations around process unit
Various
Not on daily basis, but as needed for special orders
Air Supplied Respirators
Hard Hat, Glasses, Safety Shoes, Air Supplied Respirators, Gloves, Dis-
posable Coveralls, and Aprons
NIOSH 1003
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X 1
1
NIOSH 1003
Domain 2: Representative

Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
metal coated fibers
Metric 4:
Temporal Representativeness Low
x 2
6
1989, 28 years old and prior to most recent PEL
Continued on next page
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— continued from previous page
Source Citation:	Bicknell, R.,McManus, K. P.,Kaiser, E. A.,Konig, J. Fidler A. T.. 1989. Health hazard evaluation report no. HETA 87-075-
1988, American cyanamid, Wallingford, Connecticut.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970576
EVALUATION




Domain Metric
Rating
MWF*
Score
Comments
Metric 5: Sample Size
High
X 1
1
Sampling was done from a variety of places and workers, but
only on one occasion.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
X 1
2
all methods and equipment used are described and seem legit-
imate
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
X 1
3
Variability and uncertainty not discussed.
Overall Quality Determination^
Medium

1.8


* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
223

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Source Citation:	Ahrenholz, S. H.. 1980. Health hazard evaluation report no. HHE 80-18-691, Looart Press Incorporate, Colorado
Springs,Colorado.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970580
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Use
Printing Plate Cleaning
Vapor
Inhalation
17mg/M3
2
1
TWA
Cleaning the step and repeat machine
4
Personal
workers using the step and repeat machine
Unkown
once/day
NIOSH P&CAM 127
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH P&CAM 127
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
data from US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1980, 37 years old, and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete data given
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Most metadata given, missing exposure frequency and duration

Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Ahrenholz, S. H.. 1980. Health hazard
Springs,Colorado.
Occupational Exposure; Monitoring Data;
3970580
evaluation report
no. HHE 80-18-691, Looart Press Incorporate, Colorado
EVALUATION
Domain
Metric
Rating MWF*
Score Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium x 1
2 Uncertainty addressed in NIOSH Method
Overall Quality Determination^
Medium
1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
225

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Source Citation:
Type of Data Source
Hero ID
Sussell, A. L.,Lushniak, B. D.. 1990. Health hazard evaluation report no. HETA 90-172-2076, Bussman/Cooper Industries,
MPH, Elizabethtown, Kentucky.
Occupational Exposure; Monitoring Data;
3970589
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Use
Print Roller Cleaning
Liquid/Vapor
Inhalation
4.02-4.24 mg/m3
2
1
Clean Print Rollers
226
Area
Blister Pack Machine
8 hrs
varies
NIOSH Method 1500
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH Method 1500 (on review, it seems this method is not
currently used for Methylene Chloride).
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X 1
x 2
x 2
x 1
1
2
6
1
US
Workplace that has potential exposure to employees
1990, 28 years old and prior to most recent PEL
discrete data given
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Unclear how frequently workers are performing part cleaning
activities
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Sussell, A. L.,Lushniak, B. D.. 1990. Health hazard evaluation report
MPH, Elizabethtown, Kentucky.
Occupational Exposure; Monitoring Data;
3970589
no. HETA 90-172-2076, Bussman/Cooper Industries,
EVALUATION
Domain
Metric Rating MWF* Score
Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Low x 1 3
Variability and uncertainty not discussed.
Overall Quality Determination^ Medium 1.8

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:
Type of Data Source
Hero ID
Ruhe, R. L.,Watanabe, A.,Stein, G.. 1981. Health hazard evaluation report no. HHE 80-49-808, Superior Tube Company,
Collegeville, Pennsylvania.
Occupational Exposure; Monitoring Data;
3970617
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
Analytic Method:
Use
Vapor Degreasing
Liquid, vapor
Inhalation
undetectable - 141mg/M3
6 breathing zone, 1 area sample
1
8-hour TWA and short term
operators
Personal, Area
Hot and cold degreasers
Assumed 8 hour shift
varies
Suggests new ventilation system.
NIOSH P & CAM 127
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Method P & CAM 127
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1980, 38 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete data given
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Unclear how frequently workers are performing degreasing ac-





tivities
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Ruhe, R. L.,Watanabe, A.,Stein, G.. 1981.
Collegeville, Pennsylvania.
Occupational Exposure; Monitoring Data;
3970617
Health hazard evaluation report no. HHE 80-49-808, Superior Tube Company,
EVALUATION


Domain
Metric
Rating MWF* Score Comments

Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium X 1 2 Uncertainty addressed in NIOSH Method
Overall Quality Determination^
Medium 1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
229

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Source Citation:	Vandervort, R.,Polakoff, P. L.. 1973. Health hazard evaluation report no. HHE 72-84-31, Dunham-Bush, Incroprated, West
Hartford, Connecticut, Part 2.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970657
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Type of Sampling:
Sampling Location:
Use
Spray Painting
aerosol
inhalation
1-74 mg/m3
Area: 15Personal: 28
1
Spray painting in spray booths
personal, area
spray booth
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Method described and NIOSH HHE; therefore, assumed to be
a NIOSH method
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X 1
x 2
x 2
x 1
1
2
6
1
US
Workplace that has potential exposure to employees
1977, 41 years old and prior to most recent PEL
discrete data given
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Complete Metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No uncertainty addressed
Overall Quality Determination^
Medium

1.7

Continued on next page
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	Vandervort, R.,Polakoff, P. L.. 1973. Health hazard evaluation report no. HHE 72-84-31, Dunham-Bush, Incroprated, West
Hartford, Connecticut, Part 2.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970657
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
231

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Vandervort, R.,Polakoff, P. L.. 1973. Health hazard evaluation report no. HHE 72-84-31, Dunham-Bush, Incroprated, West
Hartford, Connecticut, Part 2.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970657
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Type of Sampling:
Sampling Location:
Use
Spray Painting
aerosol
inhalation
1-74 mg/m3
Area: 15Personal: 28
1
Spray painting
personal, area
spray booth
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Method described and NIOSH HHE; therefore, assumed to be
a NIOSH method
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X 1
x 2
x 2
x 1
1
2
6
1
US
Workplace that has potential exposure to employees
1977, 41 years old and prior to most recent PEL
discrete data given
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Complete Metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^
Medium

1.7

Continued on next page
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— continued from previous page
Source Citation:	Vandervort, R.,Polakoff, P. L.. 1973. Health hazard evaluation report no. HHE 72-84-31, Dunham-Bush, Incroprated, West
Hartford, Connecticut, Part 2.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3970657
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation: Echa,. 2017. Uses at industrial sites: Dichloromethane.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 3970727
EXTRACTION
Parameter Data
Life Cycle Stage: Manufacture, Use, and Exposure Review
Physical Form: Varies
Route of Exposure: Varies
Worker Activity: Varies
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Unacceptable
X 1
4
No Comment.
Domain 2: Representative

Metric 2:
Geographic Scope
Medium
X 1
2
European Chemicals Agency
Metric 3:
Applicability
Unacceptable
x 2
8
Synopsis of where the chemical is used, not an occupational

scenario
Metric 4:
Temporal Representativeness
Low
x 2
6
No Comment.
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
x 1
4
No Comment.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 3.3.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Echa,. 2017. Uses by professional workers: Dichloromethane.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 3970728
EXTRACTION
Parameter Data
Life Cycle Stage: Manufacture, Use, and Exposure Review
Physical Form: Varies
Route of Exposure: Varies
Worker Activity: Varies
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Unacceptable
X 1
4
No Comment.
Domain 2: Representative

Metric 2:
Geographic Scope
Medium
X 1
2
European Chemicals Agency
Metric 3:
Applicability
Unacceptable
x 2
8
Synopsis of where the chemical is used, not an occupational

scenario
Metric 4:
Temporal Representativeness
Low
x 2
6
No Comment.
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
x 1
4
No Comment.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 3.3.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Niosh,. 1978. Occupational health guideline for methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3974864
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Use
Health Guidline
liquid, vapor
inhalation, dermal, ingestion
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Low
x 2
6
Occupational Health Guidline for Methylene Chloride in the





workplace.
Metric 4:
Temporal Representativeness
Low
x 2
6
1978, 40 years old
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Well documented, but little to no citations inline with the text.
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
N/a
Overall Quality Determination^
Low

2.4

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:	Niosh,. 1980. Extent of exposure survey of methylene chloride.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3974901
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Use
Paint Stripping
liquid, vapor
inhalation
Personal: 15.7 - 268 ppm (avg. conc. 64 ppm)
Personal: 12
1
8 Hour TWA
Stripping paint
106
personal
around aircraft
8 hr/day
everyday
Better ventilation in new facility
Coveralls, monogoggles, rubber gloves, etc.
NIOSH S239
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	x 1	1 NIOSH Method
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
X
2
6
1980, 38 years old and prior to most recent PEL
Metric 5:
Sample Size
High
X
1
1
Excellent charcterization of all measurements and data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium X 1	2 Durations of shifts/exposure were not completely captured
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Niosh,. 1980. Extent of exposure survey of methylene chloride.
Occupational Exposure; Monitoring Data;
3974901


EVALUATION




Domain
Metric
Rating MWF*
Score
Comments

Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
High x 1
1
Variability is addressed within the experiment in regards to
some of the sampling. Variability and uncertainty is further
addressed by the NIOSH method.
Overall Quality Determination^
High
1.6


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:
Type of Data Source
Hero ID
Niosh,. 1980. Extent of exposure survey of methylene chloride.
Occupational Exposure; Monitoring Data;
3974901
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Manufacture
Triacetate fiber production
liquid, vapor
inhalation
Personal: 31-561 ppmArea: 409-950ppm
Personal: 46Area: 16
1
8 Hour TWA
Exposure to solvent directly or through residue left on textile.
1950 (920 potentially exposed to Methylene Chloride)
personal
Production, Extrusion, Bobbin Stores, and Textile work area
variable up to 8hr/day
variable
Ventilation, negative pressure areas
Varies from none to occasional use of gloves, aprons, goggles, etc.
NIOSH S239
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Method
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1980, 38 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
Excellent charcterization of all measurements and data points
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Durations of shifts/exposure were not completely captured
Continued on next page
239

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Niosh,. 1980. Extent of exposure survey of methylene chloride.
Occupational Exposure; Monitoring Data;
3974901


EVALUATION




Domain
Metric
Rating MWF*
Score
Comments

Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
High x 1
1
Variability is addressed within the experiment in regards to
some of the sampling. Variability and uncertainty is further
addressed by the NIOSH method.
Overall Quality Determination^
High
1.6


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
240

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Source Citation:
Type of Data Source
Hero ID
Niosh,. 1980. Extent of exposure survey of methylene chloride.
Occupational Exposure; Monitoring Data;
3974901
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
PPE:
Analytic Method:
Use
Decaffenation of Coffee
liquid, vapor
inhalation
Personal: 0.3-33.2 ppm (avg. conc. 2.9 ppm)Area: 0.05 - 2.08 ppm
Personal: 36Short Term: 3Area: 7
1
8 hour, short term, peak
Running the decaffeinating facility
55-58
personal, area
decaffeinating facility
variable up to 8hr/day
everyday
Company supplied work clothing, safety glasses, hard hats, etc.
NIOSH S239
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Method
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1980, 38 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
Excellent charcterization of all measurements and data points
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Durations of shifts/exposure were not completely captured
Continued on next page
241

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Niosh,. 1980. Extent of exposure survey of methylene chloride.
Occupational Exposure; Monitoring Data;
3974901


EVALUATION
Domain
Metric
Rating MWF*
Score
Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
High x 1
1
Variability is addressed within the experiment in regards to
some of the sampling. Variability and uncertainty is further
addressed by the NIOSH method.
Overall Quality Determination^
High
1.6


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
242

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Source Citation:	Niosh,. 1990. Preliminary survey report: Control of methylene chloride in furniture stripping at Strip-Ease Co. Of Cincinnati.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3974903
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Use
Furniture Stripping
liquid, vapor
inhalation
200-1500 ppm
6
1
Stripping furniture
3
area
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
NIOSH survey, but had limited qualitative sampling available.
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Workplace that uses Methylene Chloride
1990, 28 years old and prior to most recent PEL
Poorly characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Missing sample durations and other metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressing data
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:
Type of Data Source
Hero ID
Niosh,. 2004. In-depth survey report: Assisting furniture strippers in reducing the risk from methylene chloride stripping
fomulations at The Strip Joint, Inc.
Occupational Exposure; Monitoring Data;
3974904
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Analytic Method:
Use
Furniture Stripping
liquid, vapor
inhalation
11-1052 ppmTWA: 38 - 496 ppm
13 personal, 9 area
1
TWA
Stripping furniture
personal, area
NIOSH Method 1005
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH Method 1005
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Medium
Medium
X 1
x 2
x 2
x 1
1
2
4
2
US
Workplace that uses Methylene Chloride
2004, 14 years old
Reasonably well characterized.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Has baseline metadata
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
High
x 1
1
Discussion addresses some of the limitations and variability in
the test. NIOSH method also contains this discussion.
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Niosh,. 2004. In-depth survey report: Assisting furniture strippers in reducing the risk from methylene chloride stripping
fomulations at The Strip Joint, Inc.
Occupational Exposure; Monitoring Data;
3974904
EVALUATION
Domain
Metric Rating MWF* Score Comments
Overall Quality Determination^ High 1.4

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
245

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Source Citation:
Type of Data Source
Hero ID
Niosh,. 1985. Health hazard evaluation report no. HETA-84-214-1633, Sheldahl, Inc., Northfield, Minnesota.
Occupational Exposure; Monitoring Data;
3974905
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Use
Use of Adhesives in Flexible circuit board Mfg
Liquid, vapor
Inhalation, dermal
TWA 25-132ppm, short term 112-1752 ppm
14
1
8-hour TWA, short term
Lamination of flexible circuitry
650
Personal, Area
Laminator, Adhesive Mixer, Tape Machine,
8-hour shift
local exhaust ventilation at several processes
Safey Glasses.Inadequate air purifying respirators and neoprene gloves
for various tasks.
NIOSH P & CAM 127
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH Method P & CAM 127
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that has potential exposure to employees
Metric 4:
Temporal Representativeness
Low
x 2
6
1985, 33 years old and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete samples given
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
all metadata given
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Niosh,. 1985. Health hazard evaluation report no. HETA-84-214-1633, Sheldahl, Inc., Northfield, Minnesota.
Occupational Exposure; Monitoring Data;
3974905
EVALUATION



Domain
Metric
Rating
MWF* Score Comments

Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
X 1 2 Uncertainty addressed in NIOSH Method
Overall Quality Determination^
High
1.6

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
247

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Source Citation: Wages, R. obert,Markowitz, S. teven,Kieding, S. yl via, Griff on, M. ark,Eiienbecker, M. ichaei. 1998. Former worker medicai
surveiiiance program at Idaho Nationai Engineering and Environmentai Laboratory (1NEEL) Phase I: Needs assessment.
Type of Data Source Occupationai Exposure; Compieted Exposure or Risk Assessments;
Hero ID 3974967
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Worker Activity:
Number of Workers:
Type of Sampling:
Use
Laboratory and Research Facility
Parts degreasing, painting,
11
General Survy of past employees
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
High
x 1
1
DOE contractor
Domain 2: Representative

Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Unacceptable
x 2
8
Retroactive look at a workplace scenario
Metric 4:
Temporal Representativeness
Low
x 2
6
1998, but uses survey data
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness Unacceptable X 1 4 No sampling technique used - no metadata as a result.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3
No Comment.
Overall Quality Determination^
Unacceptable
4
Metric Mean Score: 2.9.

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Source Citation:
Doe,. 2003. A needs assessment for medical screening of construction workers
at the Portsmouth and Paducah gaseous

diffusion plants.

Type of Data Source
Occupational Exposure; Reports for Data or Information Other than Exposure or
Release Data;
Hero ID
3974976

EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Number of Sites:
Worker Activity:
Number of Workers:
Use
Gaseous Diffusion Plant Construction
2
Degreasing
>1000
EVALUATION
Domain Metric Rating MWF* Score Comments
Domain 1: Reliability
Metric 1: Methodology High X 1 1 University of Cincinnati, NIOSH, DOE
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Unacceptable
X
2
8
Retroactive look at a workplace scenario
Metric 4:
Temporal Representativeness
Low
X
2
6
2003, but uses old data
Metric 5:
Sample Size
Low
X
1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Medium
X
1
2
Well documented, but little to no citations inline with the text.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
X
1
3
No Comment.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.7.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:
Doe,. 1999. Advanced mixed waste treatment project: Appendices.
Type of Data Source
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3974977
EXTRACTION

Parameter
Data
Life Cycle Stage: Disposal
Life Cycle Description (Subcategory of Use): Waste Incineration
Physical Form: Vapor
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Medium
X 1
2
Contractor for DOE
Domain 2: Representative

Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Unacceptable
x 2
8
Estimations for future incineration emissions - not related to

direct worker exposure.
Metric 4:
Temporal Representativeness
Low
x 2
6
1999, 19 years old
Metric 5:
Sample Size
Low
x 1
3
No Comment.
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Low
x 1
3
Not well documented.
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.9.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation: Doe,. 1992. Summary of clean up site at Glass Melter thermal Treatment Unit at Monsanto Research Corporation.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID 3974994
EXTRACTION
Parameter Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Number of Sites:
Engineering Control & percent Exposure Reduction:
Disposal
Waste Incineration
Vapor
1
Controls to prevent inefficient waste burning
EVALUATION
Domain Metric Rating MWF* Score Comments
Domain 1: Reliability
Metric 1: Methodology High x 1 1 DOE, EPA, DOI
Domain 2:
Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope High x 1 1
Applicability Unacceptable x 2 8
Temporal Representativeness Low x 2 6
Sample Size Low x 1 3
US
Synopsis of a scenario where methylene chloride could be in-
troduced in the workplace, but focused solely on efficiency of
the incinerator
1988, 30 years old
No Comment.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness High x 1 1 Well documented
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3
None addressing data
Overall Quality Determination^
Unacceptable
4
Metric Mean Score: 2.6.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha„Niosh,. 2013. Hazard alert methylene chloride hazards for bathtub refinishers.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978131
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Bathtub Refinishing/Stripping
Physical Form:	Liquid, Vapor
Route of Exposure:	Inahaltion, Dermal
Worker Activity:	Bathtub refinishing
Engineering Control & percent Exposure Reduction:	Test the air, provide local exhaust ventilation
PPE:	Full face respirator, PE or EVOH gloves, DCM resistant clothing, goggles
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
Domain 1: Reliability
Metric 1:
Methodology
Unacceptable x 1
No methodology
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope	High	x 1	1
Applicability	Unacceptable	x 2	8
Temporal Representativeness	High	x 2	2
Sample Size	Low	x 1	3
US
NIOSH Methylene Chloride Hazard Alert - Focused on health
effects and PPE
2012
no exposure data
Domain 3: Accessibility/Clarity



Metric 6: Metadata Completeness
Unacceptable x 1
4
no exposure data
Domain 4: Variability and Uncertainty



Metric 7: Metadata Completeness
Low x 1
3
no exposure data
Overall Quality Determination^	Unacceptable	4 Metric Mean Score: 2.8.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, three of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:
Type of Data Source
Hero ID
Niosh,. 2014. Methylene chloride current intelligence bulletin.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978133
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Use
Film Base Manufacturing
vapor
Inhalation
0 to 350 ppm; mean exposure of 118.8 ppm in 1966 to 40.3 ppm in 197
(reported in other sources citing Friedlander et al, 1978
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
x 1
3
NIOSH Intelligence Bulletin - references Friedlander 1978
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
CTA film manufacturing
Metric 4:
Temporal Representativeness
Low
x 2
6
1956-1976
Metric 5:
Sample Size
Medium
x 1
2
range provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
personal samples
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion on uncertainty and variability
Overall Quality Determination^
Medium
2.2
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:	Niosh,. 2014. Methylene chloride current intelligence bulletin.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978133
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Use
Manufacture of synthetic fibers
vapor
Inhalation
5 to 900 ppm (reported by other sources citing Ott et al, 1983)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
NIOSH Intelligence Bulletin - references Ott 1983
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
CTA film manufacturing
Metric 4:
Temporal Representativeness
Low
x 2
6
1954-1977
Metric 5:
Sample Size
Medium
x 1
2
range provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
personal samples
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion on uncertainty and variability
Overall Quality Determination^
Medium
2.2
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
254

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Source Citation:	Niosh,. 2014. Methylene chloride current intelligence bulletin.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978133
EXTRACTION
Parameter	Data
Life Cycle Stage:	All
Life Cycle Description (Subcategory of Use):	Mfg, use as solvent, aerosol propellant or fumigant, and blowing agent
in flexible urethane foams.
Number of Workers:	1 million (1986)
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
x 1
3
NIOSH Intelligence Bulletin
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Medium
Low
N/A
x 1
x 2
x 2
1
4
6
N/A
US
Total workers in USA
1986
n/a - not exposure data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
N/A

N/A
n/a - not exposure data
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
N/A

N/A
n/a - not exposure data
Overall Quality Determination^	Low	2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation: Osha,. 2012. Occupational safety and health standards: Toxic and hazardous substances: Methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID 3978279
EXTRACTION

Parameter

Data

Life Cycle Stage:

Regulation

Life Cycle Description (Subcategory of Use):
OSHA 29 CFR Part 1910

EVALUATION

Domain
Metric
Rating
MWF* Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Unacceptable
X 1
4
No Comment.
Domain 2: Representative

Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Unacceptable
x 2
8
OSHA standard discussing workplace safety. No exposure

data.
Metric 4:
Temporal Representativeness
Low
x 2
6
n/a - not exposure data
Metric 5:
Sample Size
Low
x 1
3
n/a - not exposure data
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
x 1
4
n/a - not exposure data
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
n/a - not exposure data
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 3.2.

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Manufacture
Manufacture of DCM
Inhalation
4
84
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of DCM
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
257

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Processing/Use
Pesticide Manufacturing and Formulation
Inhalation
60
120
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Pesticide Manufacturing and Formulation
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
258

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Processing
Distribution/Formulation
Inhalation
320
1,701
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Distribution/Formulation
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
259

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Processing
Aerosol Packaging
Inhalation
52
520
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Aerosol Packaging
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
260

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Processing
Paint Remover Manufacturing
Inhalation
80
200
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Paint Remover Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
261

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Processing
Paint Manufacturing
Inhalation
49
229
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Paint Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
262

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Processing
Adhesive Production
Inhalation
165
497
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Adhesive Production
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
263

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Processing
Ink and Ink Solvent Manufacturing
Inhalation
15
58
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Ink and Ink Solvent Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
264

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Solvent Recovery
Inhalation
34
137
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Solvent Recovery
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
265

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Open Top Vapor Degreasing
Inhalation
278
608
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Open Top Vapor Degreasing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
266

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Conveyorized Vapor Degreasing
Inhalation
45
75
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Conveyorized Vapor Degreasing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
267

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Cold Degreasing and Other Cold Cleaning:
Inhalation
23717
94,537
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Cold Degreasing and Other Cold Cleaning:
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
268

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Adhesive Use
Inhalation
1753
5,269
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Adhesive Use
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
269

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Paint Stripping: Aircraft
Inhalation
300
2,470
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Paint Stripping: Aircraft
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
270

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Furniture Stripping
Inhalation
6152
7,872
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Furniture Stripping
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
271

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Other Industrial Paint Stripping
Inhalation
35041
46,605
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Other Industrial Paint Stripping
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
272

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Flexible Polyurethane Foam Manufacturing
Inhalation
100
600
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Flexible Polyurethane Foam Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
273

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Worker Activity:
Number of Workers:
Use
Electronics
Inhalation
239
semiconductor
1,392
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Electronics
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
274

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Worker Activity:
Number of Workers:
Use
Electronics
Inhalation
141
Printed Circuit Boards
298
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Electronics
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
275

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Processing/Use
Pharmaceutical Manufacturing
Inhalation
108
1,431
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Pharmaceutical Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
276

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Film Base Manufacturing
Inhalation
1
500
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Film Base Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
277

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Worker Activity:
Number of Workers:
Use
Plastics Manufacturing
Inhalation
80
Injection Molding
240
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Plastics Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
278

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Worker Activity:
Number of Workers:
Use
Plastics Manufacturing
Inhalation
1323
Lamination
4,070
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Plastics Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
279

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Worker Activity:
Number of Workers:
Use
Plastics Manufacturing
Inhalation
165
Mold Release
497
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Plastics Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
280

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Polycarbonate Manufacturing
Inhalation
4
67
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Polycarbonate Manufacturing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
281

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Ink Solvent Use in Printing
Inhalation
11869
39,481
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Ink Solvent Use in Printing
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
282

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Worker Activity:
Number of Workers:
Use
construction
Inhalation
9504
paint stripping and foamblowing are essential operations of many of the
jobs in which they are used
24,896
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
construction
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
283

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Number of Sites:
Number of Workers:
Use
Shipyards
Inhalation
25
3,040
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Shipyards
pre 1997
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
284

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: European Chlorinated Solvents, Association. 2015. Health profile on dichloromethane.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID 3982133
EXTRACTION
Parameter Data
Life Cycle Stage: Industry Association Brief
Life Cycle Description (Subcategory of Use): European Chlorinated Solvent Assoc.
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Unacceptable
X 1
4
No Comment.
Domain 2: Representative

Metric 2:
Geographic Scope
Medium
X 1
2
Europe
Metric 3:
Applicability
Unacceptable
x 2
8
Industry advocacy brief, no data.
Metric 4:
Temporal Representativeness
High
x 2
2
2015
Metric 5:
Sample Size
Low
x 1
3
no exposure data
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Unacceptable
x 1
4
no exposure data
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
x 1
3
no exposure data
Overall Quality Determination^ Unacceptable 4 Metric Mean Score: 2.9.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, three of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
285

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Hsia,. 2013. TSCA work plan chemicals program.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID 3982141
EXTRACTION
Parameter Data
EVALUATION

Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability

Metric 1:
Methodology
Unacceptable
X
1
4
No methodology
Domain 2: Representative

Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Unacceptable
X
2
8
An industry argument against regulation of trichloroethylene.
Metric 4:
Temporal Representativeness
High
X
2
2
2013
Metric 5:
Sample Size
Low
X
1
3
no exposure data
Domain 3: Accessibility/Clarity

Metric 6:
Metadata Completeness
Low
X
1
3
no exposure data
Domain 4: Variability and Uncertainty

Metric 7:
Metadata Completeness
Low
X
1
3
no exposure data
Overall Quality Determination^ Unacceptable 4 Metric Mean Score: 2.7.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, two of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
286

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Atsdr,. 2009. Health consultation: Indoor air quality: Raytheon area: St. Petersburg, Pinellas County, Florida: EPA facility
ID: FLD004100152, Part 2.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3982212
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Analytic Method:
Ambient Environment
Disposal (hazardous waste site)
vapor
inhalation, ingestion, dermal
None-Detected - 24 ug/m3
23
1
12-hour
Ambient indoor air testing
Area
Multiple buildings adjacent to former Ratheon production site.
varies
everyday
EPA Method Total Organic 15
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	x 1	1 EPA Methods
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Low
X
2
6
Focuses on ambient indoor air quality surrounding a former
manufacturing site.
Metric 4:
Temporal Representativeness
Medium
X
2
4
2008, 10 years old
Metric 5:
Sample Size
Medium
X
1
2
Limited data characterization - not necessarily relatable to
work scenario
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Medium X 1	2 Detailed metadata is non-existent due to limited relevance of
the sample set to workplace exposure.
Continued on next page
287

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Atsdr,. 2009. Health consultation: Indoor
ID: FLD004100152, Part 2.
Occupational Exposure; Monitoring Data;
3982212
air quality: Raytheon area: St. Petersburg, Pinellas County, Florida: EPA facility
EVALUATION


Domain
Metric
Rating MWF* Score Comments

Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium X 1 2 Sample addresses the variability and limitations of the analysis
well.
Overall Quality Determination^
Medium 2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
288

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation: Oehha,. 2007. Occupational health hazard risk assessment project for California: Identification of chemicals of concern,
possible risk assessment methods, and examples of health protective occupational air concentrations.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID 3982225
EXTRACTION
Parameter

Data

Life Cycle Stage:

California Risk Assessment

EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Mixed, NIOSH,OEHHA,OSHA
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Unacceptable
Medium
Low
X 1
x 2
x 2
x 1
1
8
4
3
US
Does not address Methylene Chloride in study.
2007
no exposure data
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Unacceptable
x 1
4
no exposure data
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
no exposure data
Overall Quality Determination^
Unacceptable

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3982330
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Exposure Concentration (Unit):
Type of Sampling:
Disposal
Waste Repackaging
Inhalation
<573 ppm (exhaled breath
Personal
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
references Thrall et al 2001
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
waste repackaging
pre-2001
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
290

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982330
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Worker Activity:
Number of Workers:
All
All
Inhalation
All
1,438,196
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
based on NIOSH 1990
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
overall DCM industry
Metric 4:
Temporal Representativeness
Low
x 2
6
pre-1990
Metric 5:
Sample Size
Low
x 1
3
no statistics provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
291

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982337
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Worker Activity:
Type of Sampling:
Use
general work area and breathing zone (1968-1982)
Vapor
Inhalation
0.086-1411 ppm
general work area and breathing zone (1968-1982)
personal, area
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
references IARC 1986
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
no specific workplace (general work area)
Metric 4:
Temporal Representativeness
Low
x 2
6
pre 1982
Metric 5:
Sample Size
Low
x 1
3
no statistics provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Low
2.6
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
292

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Worker Activity:
Engineering Control & percent Exposure Reduction:
PPE:
Manufacture
Manufacture of DCM
Vapor
Inhalation
6
Drum filling
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of DCM
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
293

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Use
Aerosol Packing
Aerosol
Inhalation
217
2,182
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Aerosol Packing
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
294

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Processing
Manufacture of Paints
Vapor
Inhalation
390
2
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of Paints
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
295

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Processing
Manufacture of Paint Removers
Vapor
Inhalation
293
760
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of Paint Removers
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium
2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
296

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
PPE:
Proc/Use
Ink Manufacturing
Vapor
Inhalation
37 ink manufacturers
143 at ink manufacturers
lists standard PPE
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Ink Manufacturing
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
297

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
PPE:
Use
Solvent recovery
Vapor
Inhalation
40
161
lists standard PPE
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Solvent recovery
Metric 4:
Temporal Representativeness
Low
x 2
6
pre 1991
Metric 5:
Sample Size
Low
x 1
3
no statistics provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium
2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
298

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Use
Degreasing and Metal Cleaning
Vapor
Inhalation
22,652 cold degreasers; 129 open top degreasers; 111 conveyorized vapor
degreasers
90,293 at cold degreasers; 271 at open top degreasers; 177 at convey-
orized vapor degreasers
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Degreasing and Metal Cleaning
Metric 4:
Temporal Representativeness
Low
x 2
6
pre 1991
Metric 5:
Sample Size
Low
x 1
3
no statistics provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium
2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
299

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Use
Paint Stripping
Vapor
Inhalation
75 large aircraft strippers; 225 small air craft strippers; 4,000 furniture
strippers; 1,930 industrial firms
1,671 at large aircraft strippers; 799 at small air craft strippers; 5,720 at
furniture strippers; 6,942 industrial firms
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	x 1	1 OSHA- Proposed Rule
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Paint Stripping
Metric 4:
Temporal Representativeness
Low
X
2
6
pre 1991
Metric 5:
Sample Size
Low
X
1
3
no statistics provided
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
methodology unclear
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium
2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
300

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Worker Activity:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Use
Polyurethane Foam Blowing
Vapor
Inhalation
180
pouring, cooling/curing
1,169
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Polyurethane Foam Blowing
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
301

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Engineering Control & percent Exposure Reduction:
PPE:
Use
Cellulose Triacetate and Film Base Production
Vapor
Inhalation
1
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Cellulose Triacetate and Film Base Production
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
302

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Use
Electronics
Vapor
Inhalation
1059
4,720
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Electronics
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
303

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
PPE:
Proc/Use
Printing
Vapor
Inhalation
10,482 printers
34,868 at printers
lists standard PPE
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Printing
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
304

-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Use
Polycarbonate Resin Manufacturing
Vapor
Inhalation
4
67
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
Polycarbonate Resin Manufacturing
Metric 4:
Temporal Representativeness
Low
x 2
6
pre 1991
Metric 5:
Sample Size
Low
x 1
3
no statistics provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
305

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Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
Worker Activity:
Number of Workers:
Engineering Control & percent Exposure Reduction:
PPE:
Processing
Pharmaceuticals Manufacturing
Vapor
Inhalation
76
Pill coating
1,007
Provides various options for engineernig control to reach OSHA PEL
lists standard PPE
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
Pharmaceuticals Manufacturing
Metric 4:
Temporal Representativeness
Low
x 2
6
pre 1991
Metric 5:
Sample Size
Low
x 1
3
no statistics provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
306

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Source Citation:
Type of Data Source
Hero ID
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Number of Sites:
PPE:
Proc/Use
Food extraction
Vapor
Inhalation
3 food processing companies
lists standard PPE
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA - Proposed Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Food extraction
pre 1991
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
307

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Source Citation:	Ec,. 2009. Recommendation from the scientific committee on occupational exposure limits from methylene chloride
(dichloromethane).
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982443
EXTRACTION
Parameter

Data




Life Cycle Stage:

Use




EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
EC report - References Friedlander 1978 (HEROID 65067),
Hearne and Pifer 1999 (HEROID 730525), Ott et al 1983
(HERO ID29149), Gibbs 1996 (730533) (see tab)
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
High
Low
Low
X
X
X
X
1
2
2
1
2
2
6
3
Europe
Covers various industries
Most data >20 years old
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
X
1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
X
1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium


2.2

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
308

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Source Citation:	CalEpa,. 2005. Appendix D.3 Chronic RELS and toxicity summaries using the previous version of Hot Spots Risk Assessment
guidelines (OEHHA 1999).
Type of Data Source Occupational Exposure; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982628
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Measurement or Method:
Number of Workers:
Use
Film Base Manufacturing
vapor
inhalation
30-125 ppm (reported in other sources citing Friedlander et al, 1978)
8-hr TWA
751
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Medium
X 1
2
cites Friedlander et al, 1978
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
CTA film manufacturing
pre 1978
no statistics provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
methodology unclear
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
variability or uncertanity not discussed
Overall Quality Determination^
Medium

2.2

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
309

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Dhhs,. 1992. In- Depth Survey Report: The Control of Methylene Chloride in Furniture Stripping at The JM Murray Center,
Inc.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	3986433
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
PPE:
Analytic Method:
Use
Furniture Stripping
liquid, vapor
inhalation, dermal
Personal: 1-160 ppmArea: 1-189 ppm
Personal: 27Area: 108
1
short-term
Personal, Area
Around Prototype stripper
varies
everyday
New Stripping Station with better airflow
shoulder length gloves, full-face mask
NIOSH 1005
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Niosh 1005
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X 1
x 2
x 2
x 1
1
2
6
1
US
Workplace that has potential exposure to employees
1992, 26 years old and prior to most recent PEL
Excellent charcterization of all measurements and data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Was run as a preliminary test of a prototype system. Actual
worker exposure data was not present.
Continued on next page
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Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	Medium x 1	2 NIOSH Method has uncertainty included.
Overall Quality Determination^	Medium	1.7
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Dhhs,. 1992. In- Depth Survey Report: The Control of Methylene Chloride in Furniture Stripping at The JM Murray Center,
Inc.
Occupational Exposure; Monitoring Data;
3986433

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Cone Mills, Corp. 1981. HEALTH & SAFETY STUDY REPORT (EPA 40 CFR PART 716).
Occupational Exposure; Monitoring Data;
4213651
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
PPE:
Industrial, commercial and consumer uses
Adhesives and sealants
spray, vapor from curing
Inhalation
from 25 - 33 ppm
3
1
NIOSH P&CAM 127
Polyurathane chair molding (pg 8 of 17)
3
personal
Three job operations or locations (i.e., flexible foam mold release spray-
ing, rigid foam mold release spraying (small parts and large parts)).
6 hrs
not specified
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
A certified occupational hygienist from the company" s Indus-
trial Hygiene Section conducted this study to determine expo-
sure levels and appears to have followed an "EPA 40 CFR Part
716" survey protocol.
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X 1
x 2
x 2
x 1
1
2
6
1
North Carolina - US
Use in scope
More than 20 years old i.e., 1982 and prior to most recent PEL
discrete data given
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
all metedata described
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Cone Mills, Corp. 1981. HEALTH & SAFETY STUDY REPORT (EPA 40 CFR PART 716).
Occupational Exposure; Monitoring Data;
4213651
EVALUATION


Domain
Metric
Rating MWF* Score Comments

Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low X 1 3 No discussion of variability or uncertainty
Overall Quality Determination^
Medium 1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
313

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Cone Mills, Corp. 1981. SURVEY RESULTS OF PERSONAL EXPOSURE MONITORING WITH COVER LETTER.
Occupational Exposure; Monitoring Data;
4213652
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
PPE:
Industrial, commercial and consumer uses
Propellants and blowing agents
spray, vapor from curing
Inhalation
Personal: from 4 to 280 ppmArea: from 540 to 2,130 ppm
17
1
NIOSH P&CAM 127
Polyurathane foam production (pgs 5, 7, and 9 of 10)Data on page 9
was a repeat of data from HERO ID: 4213651
not specified
personal and area
Job operations or locations (e.g., foam line operator, foam line assistant,
cut-off saw operator, crane operator in foam storage room).
Personal: from 4 and 5 hrsArea: from 1.5 to 5 hrs
not specified
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
A certified occupational hygienist from the company" s Indus-





trial Hygiene Section conducted this study to determine expo-





sure levels and appears to have followed an "EPA 40 CFR Part





716" survey protocol.
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
North Carolina - US
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
More than 20 years old i.e., 1982 and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete data given
Domain 3: Accessibility/Clarity
Continued on next page
314

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Cone Mills, Corp. 1981. SURVEY RESULTS OF PERSONAL EXPOSURE MONITORING WITH COVER LETTER.
Occupational Exposure; Monitoring Data;
4213652
EVALUATION
Domain
Metric Rating
MWF* Score Comments

Metric 6; Metadata Completeness High
X 1 1 all metadata given
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Low
X 1 3 No discussion of variability or uncertainty
Overall Quality Determination^ Medium
1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
315

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Burlington Indus, Inc. 1979. Solvent exposure monitoring results with cover letters.
Occupational Exposure; Monitoring Data;
4213722
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
PPE:
Industrial, commercial and consumer uses
Solvents (for cleaning or degreasing)
spray and vapor
Inhalation
Personal: from 139 to 213 ppmArea: 708 ppm
10
1
Organic solvents are used in various operations at the Goldsboro plant"
as a rust prevetative" to remove grease and oil" employees are exposed
to the solvents in all of these operations,
not specified
personal and area
Job operations or locations (e.g., machine cleaning).
The sample durations varied from a few minutes to several hour, de-
pending upon the duration of solvent usage in the operation.
"Goldsboro plant emplyees using Solvex II did use organic vapor res-
pirators while the spraying was done, but the data indicate that these
respirators would have to be worn during the entire cleaning opeation to
provide adequate protection" an alternative is to find another solvent..."
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
High
x 1
A certified occupational hygienist from the company"s Indus-
trial Hygiene Section conducted this study to determine expo-
sure levels and appears to have followed an "EPA 40 CFR Part
716" survey protocol.
Domain 2: Representative
Metric 2
Metric 3
Metric 4
Geographic Scope	High x 1	1
Applicability	High x 2 2
Temporal Representativeness Low	x 2 6
North Carolina - US
Use in scope
More than 20 years old i.e., 1979 and prior to most recent PEL
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Burlington Indus, Inc. 1979. Solvent exposure monitoring results with
Occupational Exposure; Monitoring Data;
4213722
cover letters.
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments

Metric 5; Sample Size
Low
X 1
3
Sample statistics not discussed, however, since this is an IH
survey it can be assumed that this was considered.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
X 1
1
Assessment or report clearly documents its data sources, as-
sessment methods, results, and assumptions.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
X 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

1.9


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
317

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Source Citation:
Type of Data Source
Hero ID
Burlington Indus, Inc. 1979. Solvent exposure monitoring results with cover letters.
Occupational Exposure; Monitoring Data;
4213722
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Engineering Control & percent Exposure Reduction:
PPE:
Industrial, commercial and consumer uses
Solvents (for cleaning or degreasing)
spray and vapor
Inhalation
Personal: 312 ppmArea: from 117 to 227 ppm
3
1
End ring cleaning - screen engraving
not specified
personal and area
Area sampling locations (i.e., where cleaning was done, on cover of wash
tank)
"the employee rotate thru this job and are exposed only one hour per
day"
No corrective action is required"
not specified
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
High
x 1
A certified occupational hygienist from the company"s Indus-
trial Hygiene Section conducted this study to determine expo-
sure levels and appears to have followed an "EPA 40 CFR Part
716" survey protocol.
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
North Carolina - US
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
X
2
6
More than 20 years old i.e., 1980 and prior to most recent PEL
Metric 5:
Sample Size
Low
X
1
3
Sample statistics not discussed, however, since this is an IH
survey it can be assumed that this was considered.
Continued on next page
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Source Citation:	Burlington Indus, Inc. 1979. Solvent exposure monitoring results with cover letters.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4213722
EVALUATION




Domain Metric
Rating
MWF*
Score
Comments
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
X 1
1
Assessment or report clearly documents its data sources, as-
sessment methods, results, and assumptions.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
X 1
2
Limited discussion on uncertainty
Overall Quality Determination^
Medium

1.8


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
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Source Citation:	Ford Motor, Co. 1981. Industrial hygiene survey - spray booths, oil house, roll weld, bonderite deck, trimline.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	4213729
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Engineering Control & percent Exposure Reduction:
PPE:
Industrial, commercial and consumer uses
Solvents (for cleaning or degreasing) - Aerosol spray degreaser/cleaner
Inhalation
Kentucky Truck Plant - 1981* Spray Booths: 0.06 and 0.78 ppm (pg 21
of 25)* Oil House: 15-minute samples from 69.9 to 0.79 ppm (TWA=7.1
ppm) (pg 22 of 25).* Bonderite Car Wash Deck: 0.07 to 2.3
13
3
breathing zone
Spray application of a sealer to the outside of vehicle firewalls. Mixed
solvent vapor employee; in many cases up to four soulvents are contained
in a system.
13 total
DuPont P-125 personal sampling pump with charcoal tube. Anaysis
with gas chromatorgraphy.
Spray Booths, Oil House, Car Wash Deck
ranged from all day to 15-minutes
Subsequent to initial complints, the ventilation in the work area was
upgraded by positioning two man-cooling fans to blow on the affected
employee at an air velocity of 50 to 500 feet per minute" the operation of
the man-cooling fans did not have a significant effect on overall emplye
exposures (pg 10 of 25).
Oil House: impervious gloves required for paint mixers (pg 16 of 25).Bon-
derite Car Wash Deck: impervious gloves with gauntlets required (pg 17
of 25).Oil House: impervious gloves were not worn buring the survey,
but should be required to minimise skin contact... various forms of ven-
tilation are employed in this area e.g., booth controlling emissions from
pot spraying (pg 18 of 25).
EVALUATION
Domain
Metric
Rating
MWF* Score
Comments

Continued on next page
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Source Citation:	Ford Motor, Co. 1981. Industrial hygiene survey - spray booths, oil house, roll weld, bonderite deck, trimline.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	4213729
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Medium
X 1
2
Data from user, who is also the author of the report
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Use in scope
1982-1981
Distribution characterized by no statistics.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Assessment or report clearly documents its data sources, as-
sessment methods, results.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion on uncertainty and variability
Overall Quality Determination^
Medium

2.0


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Olin, Corp. 1977. DETERMINATION OF THE EMISSION LEVELS OF METHYLENE CHLORIDE FROM NEWLY
FORMULATED AUTOPAK CHEM SYSTEMS WITH COVER LETTER.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4213766
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Engineering Control & percent Exposure Reduction:
Industrial, commercial and consumer uses
Solvents (for cleaning or degreasing)
spray and vapor
Inhalation
Personal: from 0.14 to 241 ppmArea: from 1.3 to 10.1 ppm
approx-imately 50
1
Exposure from the newly formulated Autopak" Chemical Systems"
Breathing zone studies were made using a Bacharach Model TLV snif-
fer during simulated packaging operations (pg 5 of 68).Lab operations,
purge operator, blend operator, etc. (pgs 10, 14, 19, 24, 27, 28, 30, 35,
40, 47, 51, 54, 57, 62, 64 of 68).
not specified
personal and area
Breathing zone sampling events (i.e., initial injection, package closed).
"Excellent progress has and is being made in regard to alleviating air con-
taminant concentrations through design and equipment changes" design
changes in the foam" a new hood has been installed (pg 8 of 68)""De-
velop a housekeeping plan to keep rags containing solvents in closed
(preferably ventilated) containers when not in use... (pg 44 of 68)."" Con-
tainer of methylene chloride and other solvents should be covered when
not in use (pg 60 of 68)."
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
A certified occupational hygienist from the company" s Indus-
trial Hygiene Section conducted these studies.
Domain 2: Representative
Metric 2:
Geographic Scope
High
X 1
1
US
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Metric 3: Applicability
Metric 4: Temporal Representativeness
Metric 5: Sample Size
High
Low
Low
XXX
2
2
1
2
6
3
Use in scope
More than 20 years old i.e., 1977 and prior to most recent PEL
Sample statistics not discussed, however, since this is an IH
survey it can be assumed that this was considered.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
X
1
1
Assessment or report clearly documents its data sources, as-
sessment methods, results, and assumptions.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium
X
1
2
Limited discussion on uncertainty
Overall Quality Determination^
Medium


1.8

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
323
Olin, Corp. 1977. DETERMINATION OF THE EMISSION LEVELS OF METHYLENE CHLORIDE FROM NEWLY
FORMULATED AUTOPAK CHEM SYSTEMS WITH COVER LETTER.
Occupational Exposure; Monitoring Data;
4213766

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Olin, Corp. 1979. INDUSTRIAL HYGIENE SURVEY CORP PROTECTION AREA WITH COVER LETTER & MEMO.
Occupational Exposure; Monitoring Data;
4213778
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Exposure Duration:
Exposure Frequency:
PPE:
Processing
Incorporated into formulation, mixture, or reaction product
vapor
Inhalation
Operator exposure ranged from 0.15 to 21.77 ppmWhile drumming,
487.3 ppm (pg 13 of 28).
5
1
charcoal tube
Dichloromethane was not the focus of the study." The short term sample
taken while an employee was drumming methyelene chlorine was a non-
routine operation and proper respiratory protection was being worn."
not specified
personal and area
Short and long term samples collected (i.e., 1 and 5 hours),
non-routine operation
The Safety Department should assist the Crop Protection Department
in a thorough review with emplyees concerning the use of respiratory
protection (pg 20 of 28).
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
not described
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US data
Metric 3:
Applicability
Medium
x 2
4
Use of DCM not clear in the study but assumed to be similar





to industrial uses in scope
Metric 4:
Temporal Representativeness Low
x 2
6
More than 20 years old i.e., 1979 and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete samples given

Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Olin, Corp. 1979. INDUSTRIAL HYGIENE SURVEY CORP PROTECTION AREA WITH COVER LETTER & MEMO.
Occupational Exposure; Monitoring Data;
4213778
EVALUATION
Domain
Metric Rating
MWF*
Score
Comments
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness Medium
X 1
2
Most metadata given, missing exposure frequency and duration
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Low
X 1
3
No discussion of variability or uncertainty
Overall Quality Determination^ Medium

2.2


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
325

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Unocal, Corporation. 1986. MEMORANDUM REGARDING UNOCAL TEMPORARY OCCUPATIONAL EXPOSURE
LIMIT (TOEL) FOR DICHLOROMETHANE WITH ATTACHMENTS AND COVER LETTER DATED 110987.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4213814
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Exposure Duration:
PPE:
Distribution in commerce
Distribution
vapor
InhalationSkin exposure is minimal (pg 10 of 19)
truck loading - less than 30 ppm for drum loading, less than 3 ppm for
(at La Miranda and Oakland LCL plants)truck loading - from 0.1 ppm
to 94 ppm, with a mean of 28 ppm (from less than 25 percent of the
Unocal Chemical Divisions LLC).
7
25DCM is handled at all 25 chemical distribution centers in the company,
filling drums/loading trucks; drumming solvent; transfer loading; truck
loading
86 plant workers and 109 truck drivers
personal and area
8	hrs
gloves, but respriators may not be routinely used.The use of respiratory
protection and gloves during truck loading has been recommented to
plant management based on these monitoring results.
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US data
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
More than 20 years old i.e., 1979 and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete data given
Continued on next page
326

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Unocal, Corporation. 1986. MEMORANDUM REGARDING UNOCAL TEMPORARY OCCUPATIONAL EXPOSURE
LIMIT (TOEL) FOR DICHLOROMETHANE WITH ATTACHMENTS AND COVER LETTER DATED 110987.
Occupational Exposure; Monitoring Data;
4213814
EVALUATION
Domain
Metric Rating
MWF* Score
Comments
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness Medium
X 1
2
Most metadata given, missing exposure frequency and duration
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Low
X 1
3
No discussion of variability or uncertainty
Overall Quality Determination^ Medium

2.0


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
327

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Olin, Chemicals. 1977. ENVIRONMENTAL HYGIENE SURVEY OF THE OLIN CHEMICALS BROOK PARK, OHIO
PLANT.
Occupational Exposure; Monitoring Data;
4213837
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Industrial, commercial and consumer uses
Solvents (for cleaning or degreasing)
vapor
Inhalation
From 0.1 to 633 ppm (pg 5 of 17)
14
Number of Sites:

1
Worker Activity:

purge operations, cylinder cleaing, blending, laboratory operations, ket-


tle area, filter cleaning
Number of Workers:

not specified
Type of Sampling:

not specified
Sampling Location:

see worker activity
Exposure Duration:

not specified
Exposure Frequency:

not specified
Engineering Control & percent Exposure Reduction:
Recommend installing a self cleaning filter to overcome the necessity of


opening and cleaning the system, laboratory work should be done in the


hood, etc.
EVALUATION


Domain
Metric
Rating MWF* Score Comments
Domain 1: Reliability


Metric 1:
Methodology
Medium X 1 2 Described, but not named
Domain 2: Representative


Metric 2:
Geographic Scope
High X 1 1 Ohio - US
Metric 3:
Applicability
High X 2 2 Use in scope
Metric 4:
Temporal Representativeness
Low X 2 6 More than 20 years old i.e., 1977 and prior to most recent PEL
Metric 5:
Sample Size
High X 1 1 discrete data given
Domain 3: Accessibility/Clarity
Continued on next page
328

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Olin, Chemicals. 1977. ENVIRONMENTAL HYGIENE SURVEY OF THE OLIN CHEMICALS BROOK PARK, OHIO
PLANT.
Occupational Exposure; Monitoring Data;
4213837
EVALUATION
Domain
Metric Rating
MWF*
Score
Comments

Metric 6; Metadata Completeness Medium
x 1
2
missing sample durations but indicated as a full-shift TWA,
other metadata given
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Low
X 1
3
No discussion of variability or uncertainty
Overall Quality Determination^ Medium

1.9


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
329

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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Olin, Chemicals. 1982. ENVIRONMENTAL HYGIENE SURVEY OF THE BROOK PARK, OHIO OLIN CHEMICALS
PLANT.
Occupational Exposure; Monitoring Data;
4213838
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Worker Activity:
Number of Workers:
Type of Sampling:
Sampling Location:
Exposure Duration:
Exposure Frequency:
Engineering Control & percent Exposure Reduction:
Industrial, commercial and consumer uses
Solvents (for cleaning or degreasing)
vapor
Inhalation
From 1.3 to 57.6 ppm (pg 4 of 5)
11
1
blender operator, purge operator, shipper, cylinder cleaner, laboratory
technician, caravan storage, lunch room
not specified
personal and area
see worker activity
not specified
not specified
Recommend installing a self cleaning filter to overcome the necessity of
opening and cleaning the system, laboratory work should be done in the
hood, etc.
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Medium
X
1
2
Data from manufacturer, who is also the author of the report
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
Ohio - US
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
X
2
6
More than 20 years old i.e., 1982 and prior to most recent PEL
Metric 5:
Sample Size
Low
X
1
3
characterized but no statistics.
Domain 3: Accessibility/Clarity
Continued on next page
330

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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Olin, Chemicals. 1982. ENVIRONMENTAL HYGIENE SURVEY OF THE BROOK PARK, OHIO OLIN CHEMICALS
PLANT.
Occupational Exposure; Monitoring Data;
4213838
EVALUATION
Domain
Metric Rating
MWF*
Score
Comments

Metric 6; Metadata Completeness Low
x 1
3
Assessment or report provides results, but the underlying
methods, data sources, and assumptions are not fully trans-
parent.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Low
X 1
3
No discussion of variability or uncertainty
Overall Quality Determination^ Medium

2.2


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
331

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Source Citation: General Electric, Co. 1989. MORBIDITY STUDY OF OCCUPATIONAL EXPOSURE TO METHYLENE CHLORIDE
USING A COMPUTERIZED SURVEILLANCE SYSTERM (FINAL REPORT) WITH COVER LETTER DATED 073189.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID 4213908
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Exposure Duration:
Processing
Plastic Processing
vapor
Inhalation
Workers at a plastic polymer plant were grouped into four exposure
groups (i.e., 49 ppm, 10.9 ppm, 3.3 ppm, and <1.0 ppm); see page
21 for specific job categories.The heat exchanges require filter changes
every 6 hours; up to 150 ppm has been measured during this separation.
Air concentrations from 1-8 ppm have been measured during the final
extrusion process.
=65+56+29(pg 23 of 95)
2
most personal air samples were performed using a 3M organic vapor
monitor #3500 personal dosimeter (pg 22 of 95).
Several plants manufacure plastic polymers. Two of the plants use DMC.
1) BPA (bisphenol A) plant" Most occupational exposure occurs during
sampling or maintenance and repair work. 2) Resin plant ... major
exposures are around the centrifuges and heat exchanges.
1,300 people were employed at several plastic polymer plants. 896 work-
ers were included in an occupational exposure study,
personal and area
We focused our analysis on a sampling duration of most of an entire 8-
hr work day, calculated as an 8-hr TWA. Shorter-term monitoring often
reflects a task-specific peak exposure.
EVALUATION

Domain
Metric
Rating
MWF* Score Comments
Domain 1: Reliability

Metric 1:
Methodology
High
X 1 1 method described and appears to be equivalent to NIOSH

Continued on next page
332

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— continued from previous page
Source Citation:	General Electric, Co. 1989. MORBIDITY STUDY OF OCCUPATIONAL EXPOSURE TO METHYLENE CHLORIDE
USING A COMPUTERIZED SURVEILLANCE SYSTERM (FINAL REPORT) WITH COVER LETTER DATED 073189.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4213908
EVALUATION




Domain Metric
Rating
MWF*
Score
Comments
Domain 2: Representative




Metric 2: Geographic Scope
High
X 1
1
Indiana - US
Metric 3: Applicability
High
x 2
2
Use in scope
Metric 4: Temporal Representativeness
Low
x 2
6
More than 20 years old i.e., 1989 and prior to most recent PEL
Metric 5: Sample Size
Low
x 1
3
means given but no other statistics.
Domain 3: Accessibility/Clarity




Metric 6: Metadata Completeness
Medium
x 1
2
Most metadata given, missing exposure frequency and duration
Domain 4: Variability and Uncertainty




Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
333

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Source Citation:	Vulcan, Chemicals. 1991. LETTER FROM VULCAN CHEMICALS TO USEPA SUBMITTING ENCLOSED INDUSTRIAL
HYGIENE MONITORING REPORT ON METHYLENE CHLORIDE WITH ATTACHMENT.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4213935
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Engineering Control & percent Exposure Reduction:
Industrial, commercial and consumer uses
Propellants and blowing agents
spray, vapor from curing
Inhalation
Personal TWA samples ranged from 188 to 223 and the area sample
TWA was 414 ppm (pg 4 of 7).
16
1
Air samples were collected by charcoal tubes
Trinity Foams uses DMC as an auxiliary blowing agent in the production
of flexible foam slabstock. Three job classes were monitored: quality
contol operator, flat top operator, saw operator.
3
personal and area
recommendations: redesign exhaust system, add additional fans, use an
emplyee education and training proram to reduce exposure, etc (pg 5 of
7).
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Described, but not named
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
North Carolina - US
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
More than 20 years old i.e., 1989 and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete data given
Domain 3: Accessibility/Clarity
Continued on next page
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Vulcan, Chemicals. 1991. LETTER FROM VULCAN CHEMICALS TO USEPA SUBMITTING ENCLOSED INDUSTRIAL
HYGIENE MONITORING REPORT ON METHYLENE CHLORIDE WITH ATTACHMENT.
Occupational Exposure; Monitoring Data;
4213935
EVALUATION
Domain
Metric Rating
MWF*
Score
Comments

Metric 6; Metadata Completeness Medium
x 1
2
missing sample durations but indicated as a full-shift TWA,
other metadata given
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Low
X 1
3
No discussion of variability or uncertainty
Overall Quality Determination^ Medium

1.9


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
335

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Source Citation:	Texaco, Inc. 1993. I.h. monit. for pentane, ethyl ether, chloroform, acetone, t-butyl alcohol, carbon tetrachloride, total
hydrocarbons, gasoline, isooctane, hexane, methylene chloride & toluene.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4213966
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Samples:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
PPE:
Industrial, commercial and consumer uses
Other Uses - Laboratory chemicals - all other chemical product and
preparation manufacturing
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:
Type of Data Source
Hero ID
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Metric 7: Metadata Completeness	Low	X 1	3 No discussion of variability or uncertainty
Overall Quality Determination^	Medium	1.9
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
Texaco, Inc. 1993. I.h. monit. for pentane, ethyl ether, chloroform, acetone, t-butyl alcohol, carbon tetrachloride, total
hydrocarbons, gasoline, isooctane, hexane, methylene chloride & toluene.
Occupational Exposure; Monitoring Data;
4213966
337
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Source Citation:	Vulcan, Chemicals. 1993. INDUSTRIAL HYGIENE STUDY OF METHYLENE CHLORIDE/PERCHLOROETHYLENE/
METHYLCHLOROFORM BLENDED AEROSOL BRAKE CLEANERS.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4213974
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Type of Sampling:
Engineering Control & percent Exposure Reduction:
PPE:
Industrial, commercial and consumer uses
Automotive care products
all exposures were under 17 ppm
28(pg 32 of 36)
1
3M charcoal monitoring badges (#3520 passive dosimeters)
Break pad technicians using an aerosol brake cleaner were studied under
normal use (formulations contained 5, 10, and 20 percent DMC with
a balance of methylchloroform). The max. total DMC discharge was
655 grams per day or approximatly six 20 ounce cans of the 20 percent
DMC.
5Subjects A through E
personal
recommendations: No more than 106 grams of methylene chloride should
be discharged into the exposure zone during one 15 minute period,
recommendations: PPE recommendations such as the use of safety
glasses and gloves during application is advised.
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Data from manufacturer, who is also the author of the report
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
USThe study was conducted at a single nationally franchised





brake and muffler repair shop located in Wichita, Kansas.
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
More than 20 years old i.e., 1992 and 1993 and prior to most





recent PEL
Metric 5:
Sample Size
Low
x 1
3
characterized but no statistics.
Continued on next page
338
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— continued from previous page
Source Citation:
Type of Data Source
Hero ID
Vulcan, Chemicals. 1993. INDUSTRIAL HYGIENE STUDY OF METHYLENE CHLORIDE/PERCHLOROETHYLENE/
METHYLCHLOROFORM BLENDED AEROSOL BRAKE CLEANERS.
Occupational Exposure; Monitoring Data;
4213974
EVALUATION
Domain
Metric Rating
MWF*
Score
Comments
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness Low
X 1
3
Assessment or report provides results, but the underlying
methods, data sources, and assumptions are not fully trans-
parent.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness Low
X 1
3
No discussion of variability or uncertainty
Overall Quality Determination^ Medium

2.2


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
339
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	hoechst celanese, corp. 1988. LETTER FROM HOECHST CELANESE CORP TO THE USEPA SUBMITTING PRELIM-
INARY INFORMATION ON A MORTALITY STUDY REGARDING WORKERS AT CELRIVER TRIACETATE PLANT
IN ROCK HILL, SC.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214003
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Exposure Concentration (Unit):
Number of Sites:
Worker Activity:
Number of Workers:
Industrial, commercial and consumer uses
CTA manufacturing
140 - 475 ppm from a survey in the late 1970s (pg 23 of 66)
1
Preparation and extrusion (spinning) areas.Focus is long term health
impact.
1,271 employees worked for at least 3-months in the extrusion depart-
ment between 1954 and 1986.
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	Medium X 1	2 Data from manufacturer, who is also the author of the report
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
Rock Hill, North Carolina - US
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
X
2
6
More than 20 years old i.e., 1970 and prior to most recent PEL
Metric 5:
Sample Size
Low
X
1
3
characterized but no statistics.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	X 1	3 Assessment or report provides results, but the underlying
methods, data sources, and assumptions are not fully trans-
parent.
Domain 4: Variability and Uncertainty

Metric 7: Metadata Completeness
Low X 1 3 No discussion of variability or uncertainty
Overall Quality Determination^
Medium 2.2
Continued on next page
340
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	hoechst celanese, corp. 1988. LETTER FROM HOECHST CELANESE CORP TO THE USEPA SUBMITTING PRELIM-
INARY INFORMATION ON A MORTALITY STUDY REGARDING WORKERS AT CELRIVER TRIACETATE PLANT
IN ROCK HILL, SC.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214003
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
341
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Occupational Exposure; Monitoring Data;
4214063
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Manufacturing
Domestic manufacturing
spray, vapor
Inhalation
Calculated exposure from 12.6 to 13,950 ppm
6
Calculated; assumptions include flowrate and area.
Exposure calculated for 4 operations: 1) drum filling, 2) tank filling, 3)
tank car filling, and 4) tap sampling.
1200pg 181 of 201
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
US EPA
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
More than 20 years old i.e., 1985 and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
Discrete samples given in appendix
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1	fully transparent.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	High
x 1
1	discussion of variability or uncertainty
Overall Quality Determination^
High
1.4
Continued on next page
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Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
343
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Processing
Repackaging - Solvents (which become part of product formulation or
mixture) for all other chemical product and preparation manufacturing
spray, vapor
Inhalation
Calculated exposure from 101 to 1,890 with a geometric mean of 317
mg/m3.
measured: 10 packers(pg 104)
112
calculated
Exposure calculated for packerstable 2-3 (pg 24 of 201)
896
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High x 1	1 US EPA
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
X
2
6
More than 20 years old i.e., 1985 and prior to most recent PEL
Metric 5:
Sample Size
High
X
1
1
Discrete samples given in appendix
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	High x 1	1 fully transparent.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	High X 1	1 discussion of variability or uncertainty
Continued on next page
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Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Overall Quality Determination^

High 1.4


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
345
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EXTRACTION
Parameter

Data



Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Industrial, commercial and consumer uses
Solvents (for cleaning or degreasing) - Aerosol spray degreaser/cleaner
spray, vapor
Inhalation
Calculated exposure from 7 to 270 with a geometric mean of 51 mg/m3
for all job categories.
calculated
Exposure calculated for 3 job categories: 1) spray painter , 2) mold
release, and 3) other worker.table 2-5 (pg 27 of 201)
14,296 spray painters, 25,972 mold release, and 50,343 other
worker.Table 3-2 (pg 89 of 201)
EVALUATION
Domain
Metric
Rating
MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1 1
US EPA
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X
X
X
X
1	1
2	2
2 6
1 1
US
Use in scope
More than 20 years old i.e., 1985 and prior to most recent PEL
Discrete samples given in appendix
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
X
1 1
fully transparent.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
High
X
1 1
discussion of variability or uncertainty
Overall Quality Determination1
High

1.4

Continued on next page
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— continued from previous page
Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
* MWF = Metric Weighting Factor
f If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
347
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Industrial, commercial and consumer uses
Paints and coatings including paint and coating removers for commercial
furniture stripping
spray, vapor
Inhalation
Calculated exposure from 7 to 3,897 with a geometric mean of 106 mg/
m3 for all job categories.
measured: 65 paint strippers, 20 water wash, 6 other(pg 104)
1280
calculated
Exposure calculated for 3 job categories: 1) spray painter , 2) water
wash, and 3) other worker.table 2-8 (pg 33 of 201)
per plant: 6 paint strippers, 20 water wash, 3 other
EVALUATION
Domain
Metric
Rating
MWF*
Score

Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
US EPA

Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
High
X
X
X
X
1
2
2
1
1
2
6
1
US
Use in scope
More than 20 years old i
Discrete samples given i
,.e.? 1985 and prior to most recent PEL
n appendix
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
X
1
1
fully transparent.

Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
High
X
1
1
discussion of variability
or uncertainty
Continued on next page
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— continued from previous page
Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EVALUATION
Domain
Metric
Rating MWF* Score
Comments

Overall Quality Determination^

High 1.4


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
349
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Number of Workers:
Industrial, commercial and consumer uses
Propellants and blowing agents
spray, vapor
Inhalation
Calculated exposure from 7 to 249 with a geometric mean of 74 mg/m3
for all job categories.
measured: 18 foam operator, 18 other(pg 104)
81
calculated
Exposure calculated for 2 job categories: 1) foam operator and 2) other
worker.table 2-11 (pg 41 of 201)
per plant: 5 foam operator, 4 other
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High x 1	1 US EPA
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
X
2
6
More than 20 years old i.e., 1985 and prior to most recent PEL
Metric 5:
Sample Size
High
X
1
1
Discrete samples given in appendix
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	High x 1	1 fully transparent.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness	High X 1	1 discussion of variability or uncertainty
Continued on next page
350
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— continued from previous page
Source Citation:	Us, E. P. A.. 1985. OCCUPATIONAL EXPOSURE AND ENVIRONMENTAL RELEASE ASSESSMENT OF METHYLENE
CHLORIDE CONTRACT NO 68-02-3935.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	4214063
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Overall Quality Determination^

High 1.4


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
351
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Texaco, Inc. 1993. I.H. MONIT. FOR PENTANE, ETHYL ETHER, CHLOROFORM, ACETONE, T-BUTYL ALCO-
HOL, CARBON TETRACHLORIDE, TOTAL HYDROCARBONS, GASOLINE, ISOOCTANE, HEXANE, METHYLENE
CHLORIDE & TOLUENE.
Occupational Exposure; Completed Exposure or Risk Assessments;
4215915
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Sampling Location:
Exposure Duration:
Processing
Laboratory chemicals for all other chemical product and preparation
menufacturing
Fumes
Inhalation
<1 pp
3
1
full-shift
Open column chromatography, composition, spectral and infrared anal-
ysis, liquid chromatography, washing glassware
personal
Lab
420-465 min
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Methodology described and appears to be equivalent to





NIOSH/OSHA methods
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
More than 20 years old i.e., 1993 and prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete data given
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Most metadata given, missing exposure frequency and duration
Continued on next page
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— continued from previous page
Source Citation:	Texaco, Inc. 1993. I.H. MONIT. FOR PENTANE, ETHYL ETHER, CHLOROFORM, ACETONE, T-BUTYL ALCO-
HOL, CARBON TETRACHLORIDE, TOTAL HYDROCARBONS, GASOLINE, ISOOCTANE, HEXANE, METHYLENE
CHLORIDE & TOLUENE.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	4215915
EVALUATION


Domain Metric
Rating
MWF* Score Comments
Domain 4: Variability and Uncertainty


Metric 7: Metadata Completeness
Low
X 1 3 No discussion of variability or uncertainty
Overall Quality Determination^
Medium
1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
353
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	General Electric, Co. 1988. Health and Safety Studies on Methylene Chloride with Attachments and Cover Letter Dated
090688.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	4442312
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Number of Workers:
Type of Sampling:
Sampling Location:
Processing
Processing as a reactant
Inhalation
3 N.D.0.015 mg/10.038 mg/10.062 mg/10.078 mg/10.177 mg/10.198 mg/
10.270 mg/1
10
10
full-shift
10
personal blood levels before and after exposure
Control room, Resin workup, dryer and extruder, material and reactor
feeds, end cap
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Information is from trusted sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Medium
Low
Low
X 1
x 2
x 2
x 1
1
4
6
3
US
Likely within scope
1988
Distribution characterized by no statistics.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Assessment or report clearly documents its data sources, as-
sessment methods, results.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion on uncertainty and variability
Continued on next page
354
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
— continued from previous page
Source Citation:	General Electric, Co. 1988. Health and Safety Studies on Methylene Chloride with Attachments and Cover Letter Dated
090688.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	4442312
EVALUATION
Domain
Metric
Rating MWF* Score
Comments

Overall Quality Determination^

Medium 2.1


* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
355
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Halogenated Solvents Industry Alliance, Inc.. 2018. Comment letter of Halogenated Solvents Industry Alliance, Inc. (HSIA)
regarding Docket ID No. EPA-HQ-OPPT-2016-0742-0103. Personal Communication.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	5042167
EXTRACTION
Parameter

Data



Life Cycle Stage:

Mfg, Proc-Rxn, Plastcs

EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
Methods not specified
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
High
X 1
x 2
x 2
x 1
1
2
2
1
US facilities
Directy industrial scenarios
most within the last 10 years
Individual data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Most metadata given, missing exposure frequency and duration
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^	High	1.6
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
356
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Finkel, A.M.. 2017. Comment letter of Adam M. Finkel regarding Docket ID No. EPA-HQ-OPPT-2016-0231-0536. Personal
Communication.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	5042391
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Exposure Concentration (Unit):
Use
Spot Cleaning
inhalation
0-88.7
Number of Samples:

6



Type of Measurement or Method:
TWA



Worker Activity:

unknown
industrial launderer sites
Type of Sampling:

personal



Exposure Duration:

various



EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
data collected by OSHA, assumed ot use OSHA methods
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US data
Metric 3:
Applicability
Medium
x 2
4
Use in scope
Metric 4:
Temporal Representativeness
Low
x 2
6
1985/1997, prior to most recent PEL
Metric 5:
Sample Size
High
x 1
1
discrete data given
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Most metadata given, missing exposure frequency and duration
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
357
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Finkel, A.M.. 2017. Comment letter of Adam M. Finkel regarding Docket ID No. EPA-HQ-OPPT-2016-0231-0536. Personal
Communication.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	5042391
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Type of Measurement or Method:
Worker Activity:
Type of Sampling:
Exposure Duration:
Use
Spot Cleaning
inhalation
0-88.7
6
TWA
unknown - industrial launderer sites
personal
various
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
data collected by OSHA, assumed ot use OSHA methods
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Medium
Medium
High
X 1
x 2
x 2
x 1
1
4
4
1
US data
Use in scope
2003 and after most recent PEL
discrete data given
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Most metadata given, missing exposure frequency and duration
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^	Medium	1.8
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
358
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	International Programme on Chemical Safet. 1996. Environmental Health Criteria 164. Methylene Chloride Second Edition.
Type of Data Source Occupational Exposure; Completed Exposure or Risk Assessments;
Hero ID	5071459
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Physical Form:
Route of Exposure:
Exposure Concentration (Unit):
Number of Samples:
Number of Sites:
Type of Measurement or Method:
Worker Activity:
Use
Polyurethane Foam Blowing
vapor
inhalation
7.1 - 1,090
unknown
unknown
TWA
Moulding, unknown, various jobs
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
Not Specified
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
World Health Organization
Metric 3:
Applicability
High
x 2
2
Foam Blowing
Metric 4:
Temporal Representativeness
Low
x 2
6
1987 through 1992, prior to PEL
Metric 5:
Sample Size
Medium
x 1
2
range given
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Type of measurement given, no other metadata provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
Not discussed.
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
359
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	OSHA. 2019. Dichloromethane Sampling Results, 2012-2016.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	5079093
EXTRACTION
Parameter

Data



Life Cycle Stage:

Various



EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
x 1
1
Assumed that OSHA used OSHA-approved methods
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
High
X 1
x 2
x 2
x 1
1
2
2
1
US
Covers various industries direcly related to scope
2013-2016
Individual data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
sample times seem incorrect
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Uncertainty and variability not discussed
Overall Quality Determination^	High	1.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
360
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PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Defense Occupational and Environmental Health Readiness System - Industrial Hygiene (DOEHRS-IH). 2018. Email between
DOD and EPA: RE: [Non-DoD Source] Update: DoD exposure data for EPA risk evaluation - EPA request for additional
information. U.S. Department of Defense.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	5178607
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Laboratory
Exposure Concentration (Unit):	mg/m3
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH Method
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
High
X 1
x 2
x 2
x 1
1
2
2
1
DOD
Laboratory
pre 2016
Individual data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
personal samples - sample times given; shift duration data is
spotty
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Uncertainty and variability not discussed
Overall Quality Determination^	High	1.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
361
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Defense Occupational and Environmental Health Readiness System - Industrial Hygiene (DOEHRS-IH). 2018. Email between
DOD and EPA: RE: [Non-DoD Source] Update: DoD exposure data for EPA risk evaluation - EPA request for additional
information. U.S. Department of Defense.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	5178607
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Paints and Coatings
Exposure Concentration (Unit):	mg/m3
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH Method
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
High
X 1
x 2
x 2
x 1
1
2
2
1
DOD
Paints and Coatings
2016
Individual data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
personal samples - sample times given; shift duration data is
spotty
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Uncertainty and variability not discussed
Overall Quality Determination^	High	1.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
362
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Defense Occupational and Environmental Health Readiness System - Industrial Hygiene (DOEHRS-IH). 2018. Email between
DOD and EPA: RE: [Non-DoD Source] Update: DoD exposure data for EPA risk evaluation - EPA request for additional
information. U.S. Department of Defense.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	5178607
EXTRACTION
Parameter	Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Waste Handling
Exposure Concentration (Unit):	mg/m3
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
NIOSH Method
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
High
X 1
x 2
x 2
x 1
1
2
2
1
DOD
Waste Handling
2017
Individual data points
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
personal samples - sample times given; shift duration data is
spotty
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Uncertainty and variability not discussed
Overall Quality Determination^	High	1.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
363
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Bernstein, A.. 2017. Arkema Inc. Comments to Inform EPA's Rulemaking on the Problem Formulations for the Risk
Evaluations for Certain of the First Ten Chemical Substances under the Lautenberg Chemical Safety Act (LCSA). EPA-HQ-
OPPT-2016-0742-0079.
Type of Data Source Occupational Exposure; Monitoring Data;
Hero ID	5355369
EXTRACTION
Parameter

Data



Life Cycle Stage:

Prox-Rxn



EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
Unknown method
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
Medium
X 1
x 2
x 2
x 1
1
2
2
2
US
Processing as a reactant
2017
average provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
personal samples
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Uncertainty and variability not discussed
Overall Quality Determination^	Medium	1.8
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
364
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Facility
365
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	2017. Chemical data reporting: Dichloro-methane.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3860459
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Manufacture/Import
Manufacture/Import of DCM
261,469,894 lb/yr
12 (some CBI)
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
EPA Source
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
Low
X 1
x 2
x 2
x 1
1
2
2
3
US
Manufacture/Import of DCM
2010, 2011
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

1.7

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
366
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Cmr,. 1979. Chemical profile on methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	730485
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Manufacture
Manufacture of DCM
830,000,000 lb/yr (1979)
7
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Chemical Marketing Reporter
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of DCM
1979
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
367
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Cmr,. 1982. Chemical profile on methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	730486
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Manufacture
Manufacture of DCM
722,000,000 lb/yr (1982)
7
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Chemical Marketing Reporter
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of DCM
1982
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
368
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Hall, A. H.,Rumack, B. H.. 1990. Methylene chloride exposure in furniture-stripping shops: Ventilation and respirator use
practices. Journal of Occupational Medicine.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	730520
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Manufacture
Manufacture of DCM
635,000,000 lb/yr (1980)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
Methodology not specified
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Manufacture of DCM
Metric 4:
Temporal Representativeness
Low
x 2
6
1980
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
369
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Hall, A. H.,Rumack, B. H.. 1990. Methylene chloride exposure in furniture-stripping shops: Ventilation and respirator use

practices. Journal of Occupational Medicine.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
730520
EXTRACTION

Parameter
Data
Life Cycle Stage:	Processing
Life Cycle Description (Subcategory of Use):	Formulation of Paint Strippers/Removers
Total Annual U.S. Volume (and percent of PV):	30 percent of PV
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X
1
3
Methodology not specified
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X
X
X
X
1
2
2
1
1
2
6
3
US
Formulation of Paint Strippers/Removers
1980
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
X
1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low


2.3


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
370
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Manufacture
Manufacture of DCM
Yes
467,000,000 ;b (1988)520,000,000 lb (1987)735,000,000 lb/yr capacity
(1987)607,000,000 lb (1984)
6
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of DCM
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
371
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Polyurethane Foam Blowing
Yes
54,000,000 lb (1988)
180
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Polyurethane Foam Blowing
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
372
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982430
EXTRACTION

Parameter
Data
Life Cycle Stage:	Processing
Life Cycle Description (Subcategory of Use):	Distribution/Formulation
Total Annual U.S. Volume (and percent of PV):	250,000,000 lb (1988)
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Distribution/Formulation
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
373
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Aerosols
Yes
106,000,000 lb (1988)
217
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Aerosols
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
374
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Polycarbonate Resin
Yes
7,000,000 lb (1988)
4
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
Polycarbonate Resin
Metric 4:
Temporal Representativeness
Low
x 2
6
1984-1988
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
375
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data



Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing
Pharmaceuticals
Yes
28,000,000 lb (1988)
76


EVALUATION
Domain Metric
Rating
MWF* Score
Comments
Domain 1: Reliability
Metric 1: Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2: Geographic Scope
Metric 3: Applicability
Metric 4: Temporal Representativeness
Metric 5: Sample Size
High
Medium
Low
Low
X 1
x 2
x 2
x 1
1
4
6
3
US
Pharmaceuticals
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
376
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing
Manufacture of Paints
Yes
28,000,000 lb (1988)
390
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of Paints
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
377
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing
Manufacture of Paint Removers
Yes
155,000,000 lb (1988)
293
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Manufacture of Paint Removers
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
378
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Paint Stripping
Yes
52,000,000 lb (1988)
75 large aircraft strippers; 225 small air craft strippers; 4,000 furniture
strippers; 1,930 industrial firms
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Paint Stripping
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
379
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Degreasing and Metal Cleaning
Yes
41,000,000 lb (1988)
22,652 cold degreasers; 129 open top degreasers; 111 conveyorized vapor
degreasers
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Degreasing and Metal Cleaning
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
380
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Use
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Cellulose Triacetate and Film Base Production
Yes
11,000,000 lb (1988)
1
EVALUATION
Domain
Metric
Rating
MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Cellulose Triacetate and Film Base Production
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
381
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Electronics
Yes
40,000,000 lb (1988)
1059
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Electronics
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
382
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Proc/Use
Miscellaneous (Food extraction, pesticide formialtion, and ink)
Yes
38,000,000 lb (1988)
3 food processing companies; 37 ink manufacturers; 10,482 printers; Note
that report later indicates that DCM is no longer used in food extraction
and that use in pesticides and ink have already or will be phased out
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Miscellaneous (Food extraction, pesticide formialtion, and ink)
Metric 4:
Temporal Representativeness
Low
x 2
6
1984-1988
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	X 1	3 No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No discussion of variability or uncertainty
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
383
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1991. Proposed rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982430
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Solvent recovery
Yes
37,000,000 lb (1988)
40
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA report based on other sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Solvent recovery
1984-1988
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
384
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Manufacture
Manufacture of DCM
469,200,000 lb (1990)
4
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Manufacture of DCM
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
385
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing
Distribution/Formulation
189,650,000 lb (1990)
320
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Distribution/Formulation
1990
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
386
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Cold Degreasing and Other Cold Cleaning:
32560000 lb (1990)
23717
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Cold Degreasing and Other Cold Cleaning:
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
387
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Open Top Vapor Degreasing
14870000 lb (1990)
278
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Open Top Vapor Degreasing
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
388
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Facility; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Conveyorized Vapor Degreasing
1130000 lb (1990)
45
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
OSHA Final Rule
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Conveyorized Vapor Degreasing
Metric 4:
Temporal Representativeness
Low
X
2
6
1990
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	X 1	3 No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No discussion of variability or uncertainty
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
389
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Semiconductors
400000 lb (1990)
239
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Semiconductors
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
390
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Printed Circuit Boards
13980000 lb (1990)
141
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Printed Circuit Boards
1990
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
391
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing
Aerosol Packaging
25210000 lb (1990)
52
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Aerosol Packaging
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
392
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Facility; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing
Paint Remover Manufacturing
136850000 lb (1990)
80
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
OSHA Final Rule
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Paint Remover Manufacturing
Metric 4:
Temporal Representativeness
Low
X
2
6
1990
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	X 1	3 No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No discussion of variability or uncertainty
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
393
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing
Paint Manufacturing
3540000 lb (1990)
49
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Paint Manufacturing
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
394
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Paint Stripping: Aircraft
13170000 lb (1990)
300
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Paint Stripping: Aircraft
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
395
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Furniture Stripping
23260000 lb (1990)
6152
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Furniture Stripping
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
396
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Other Industrial Paint Stripping
59360000 lb (1990)
35041
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Other Industrial Paint Stripping
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
397
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Facility; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Flexible Polyurethane Foam Manufacturing
50320000 lb (1990)
100
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
OSHA Final Rule
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Flexible Polyurethane Foam Manufacturing
Metric 4:
Temporal Representativeness
Low
X
2
6
1990
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	X 1	3 No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No discussion of variability or uncertainty
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
398
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing/Use
Manufacturing and Use of Plastics and Adhesives
41900000 lb (1990)
3487
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Manufacturing and Use of Plastics and Adhesives
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
399
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3978298
EXTRACTION

Parameter
Data
Life Cycle Stage:	Processing
Life Cycle Description (Subcategory of Use):	Adhesive Production
Number of Sites:	165
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Adhesive Production
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^	Medium	2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
400
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3978298
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Adhesive Use
Number of Sites:	1753
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Adhesive Use
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^	Medium	2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
401
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3978298
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Injection Molding
Number of Sites:	80
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Injection Molding
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^	Medium	2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
402
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3978298
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Lamination
Number of Sites:	1323
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Lamination
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^	Medium	2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
403
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3978298
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Mold Release
Number of Sites:	165
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Mold Release
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^	Medium	2.1
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
404
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing
Ink and Ink Solvent Manufacturing
3680000 lb (1990)
15
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Ink and Ink Solvent Manufacturing
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
405
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Ink Solvent Use in Printing
3680000 lb (1990)
11869
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Ink Solvent Use in Printing
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
406
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing/Use
Pesticide Manufacturing and Formulation
9580000 lb (1990)
60
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Pesticide Manufacturing and Formulation
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
407
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Processing/Use
Pharmaceutical Manufacturing
39530000 lb (1990)
108
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Pharmaceutical Manufacturing
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
408
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Solvent Recovery
32100000 lb (1990)
34
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Solvent Recovery
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
409
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Film Base Manufacturing
8900000 lb (1990)
1
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Film Base Manufacturing
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
410
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Type of Data Source
Hero ID
Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Facility; Reports for Data or Information Other than Exposure or Release Data;
3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Polycarbonate Manufacturing
6700000 lb (1990)
4
EVALUATION
Domain
Metric
Rating MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
OSHA Final Rule
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Polycarbonate Manufacturing
Metric 4:
Temporal Representativeness
Low
X
2
6
1990
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	X 1	3 No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 No discussion of variability or uncertainty
Overall Quality Determination^
Medium
2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
411
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
construction
2440000 lb (1990)
9504
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
construction
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
412
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Osha,. 1997. Final rules: Occupational exposure to methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3978298
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Shipyards
470000 lb (1990)
25
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
OSHA Final Rule
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Shipyards
Metric 4:
Temporal Representativeness
Low
x 2
6
1990
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
413
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Paint Strippers and Removers
Total Annual U.S. Volume (and percent of PV):	30 percent
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
References Holbrook 2003 (Kirk Othmer)
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Paint Strippers and Removers
Metric 4:
Temporal Representativeness
Medium
X
2
4
unknown (need to see Holbrook 2003) (at least 10 years old)
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
No underlying information provided
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium


2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
414
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Adhesives
Total Annual U.S. Volume (and percent of PV):	20 percent
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
References Holbrook 2003 (Kirk Othmer)
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Adhesives
Metric 4:
Temporal Representativeness
Medium
X
2
4
unknown (need to see Holbrook 2003) (at least 10 years old)
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
No underlying information provided
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium


2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
415
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Propellant in Aerosols
Total Annual U.S. Volume (and percent of PV):	10 percent
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
References Holbrook 2003 (Kirk Othmer)
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Propellant in Aerosols
Metric 4:
Temporal Representativeness
Medium
X
2
4
unknown (need to see Holbrook 2003) (at least 10 years old)
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
No underlying information provided
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium


2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
416
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Solvent in the Manufacture of Pharmaceuticals and Drugs
Total Annual U.S. Volume (and percent of PV):	10 percent
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
References Holbrook 2003 (Kirk Othmer)
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Solvent in the Manufacture of Pharmaceuticals and Drugs
Metric 4:
Temporal Representativeness
Medium
X
2
4
unknown (need to see Holbrook 2003) (at least 10 years old)
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
No underlying information provided
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium


2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
417
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Chemical Processing
Total Annual U.S. Volume (and percent of PV):	10 percent
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
References Holbrook 2003 (Kirk Othmer)
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Chemical Processing
Metric 4:
Temporal Representativeness
Medium
X
2
4
unknown (need to see Holbrook 2003) (at least 10 years old)
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
No underlying information provided
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium


2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
418
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Metal Cleaning and Finishing Solvent
Total Annual U.S. Volume (and percent of PV):	10 percent
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
References Holbrook 2003 (Kirk Othmer)
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Metal Cleaning and Finishing Solvent
Metric 4:
Temporal Representativeness
Medium
X
2
4
unknown (need to see Holbrook 2003) (at least 10 years old)
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
No underlying information provided
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium


2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
419
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Urethane Foam Blowing
Total Annual U.S. Volume (and percent of PV):	5 percent
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability






Metric 1:
Methodology
Low
X
1
3
References Holbrook 2003 (Kirk Othmer)
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Urethane Foam Blowing
Metric 4:
Temporal Representativeness
Medium
X
2
4
unknown (need to see Holbrook 2003) (at least 10 years old)
Metric 5:
Sample Size
Low
X
1
3
No information on sample size
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
X
1
3
No underlying information provided
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
X
1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium


2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
420
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Manufacture
Life Cycle Description (Subcategory of Use):	Manufacture of DCM
Number of Sites:	4
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
References SRI 2009
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Manufacture of DCM
Metric 4:
Temporal Representativeness
High
x 2
2
2009
Metric 5:
Sample Size
Low
x 1
3
No information on sample size
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^	Medium	1.9
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
421
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Nih,. 2016. Report on carcinogens: Dichloromethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982330
EXTRACTION

Parameter
Data
Life Cycle Stage:	Distribution
Life Cycle Description (Subcategory of Use):	Distribution
Number of Sites:	58 U.S. Suppliers
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
References ChemSources 2009
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
Low
X 1
x 2
x 2
x 1
1
2
2
3
US
Distribution
2009
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
422
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982337
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Manufacture
Manufacture of DCM
Yes
545,000,000 lb capacity (1999)
4
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Produced by ATSDR
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Manufacture of DCM
Metric 4:
Temporal Representativeness
Low
x 2
6
>20 years old
Metric 5:
Sample Size
Medium
x 1
2
Provided an estimate - uncertain range or error
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium
2.0
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
423
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982337
EXTRACTION

Parameter
Data
Life Cycle Stage:	Import
Life Cycle Description (Subcategory of Use):	Import
Total Annual U.S. Volume (and percent of PV):	132-145 milion pounds (1992-1996)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Produced by ATSDR
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Import
Metric 4:
Temporal Representativeness
Low
x 2
6
>20 years old
Metric 5:
Sample Size
Medium
x 1
2
Provided an estimate - uncertain range or error
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
424
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982337
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Paint Strippers and Removers
Total Annual U.S. Volume (and percent of PV):	25 percent
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Produced by ATSDR
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Paint Strippers and Removers
Metric 4:
Temporal Representativeness
Low
x 2
6
>20 years old
Metric 5:
Sample Size
Medium
x 1
2
Provided an estimate - uncertain range or error
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
425
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982337
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Propellant in Aerosols
Total Annual U.S. Volume (and percent of PV):	25 percent
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Produced by ATSDR
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Propellant in Aerosols
Metric 4:
Temporal Representativeness
Low
x 2
6
>20 years old
Metric 5:
Sample Size
Medium
x 1
2
Provided an estimate - uncertain range or error
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
426
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982337
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Proces solvent in mfg of drugs, pharmaceuticals, and film coatings
Total Annual U.S. Volume (and percent of PV):	20 percent
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Produced by ATSDR
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Proces solvent in mfg of drugs, pharmaceuticals, and film coat-





ings
Metric 4:
Temporal Representativeness
Low
x 2
6
>20 years old
Metric 5:
Sample Size
Medium
x 1
2
Provided an estimate - uncertain range or error
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
427
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982337
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Metal Cleaning and Finishing Solvent
Total Annual U.S. Volume (and percent of PV):	10 percent
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Produced by ATSDR
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Metal Cleaning and Finishing Solvent
Metric 4:
Temporal Representativeness
Low
x 2
6
>20 years old
Metric 5:
Sample Size
Medium
x 1
2
Provided an estimate - uncertain range or error
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
428
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982337
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Electronics
Total Annual U.S. Volume (and percent of PV):	10 percent
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Produced by ATSDR
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Electronics
Metric 4:
Temporal Representativeness
Low
x 2
6
>20 years old
Metric 5:
Sample Size
Medium
x 1
2
Provided an estimate - uncertain range or error
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
429
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Atsdr,. 2000. Toxicological profile for methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3982337
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Polyurethane Foam Blowing
Total Annual U.S. Volume (and percent of PV):	10 percent
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Produced by ATSDR
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Polyurethane Foam Blowing
Metric 4:
Temporal Representativeness
Low
x 2
6
>20 years old
Metric 5:
Sample Size
Medium
x 1
2
Provided an estimate - uncertain range or error
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
430
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Kikuchi, E. mi,Kikuchi, Y.,Hirao, M.. 2012. Monitoring and Analysis of Solvent Emissions from Metal Cleaning Processes for

Practical Process Improvement. Annals of Occupational Hygiene.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
2128076
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Open Top Vapor Degreasing
Process Description:	Yes
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Journal article
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
High
High
N/A
X 1
x 2
x 2
2
2
2
N/A
Japan
Open Top Vapor Degreasing
2011
N/A - only process description from this source
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
N/A

N/A
N/A - only process description from this source
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
N/A

N/A
N/A - only process description from this source
Overall Quality Determination^
High

1.2

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
431
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Iarc,. 2016. Dichloromethane. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3827786
EXTRACTION
Parameter
Data
Life Cycle Stage:
Total Annual U.S. Volume (and percent of PV):
Manufacture/Import
45,000 to 227,000 tonnes between 1996 and 2006
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
per NTP, 2001
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Medium
Low
X 1
x 2
x 2
x 1
1
2
4
3
US
Manufacture/Import of DCM
2001
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
432
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
ToxNet Hazardous Substances Data, Bank. 2017. HSDB: Methylene chloride.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3970276
EXTRACTION

Parameter
Data
Life Cycle Stage:	Import
Life Cycle Description (Subcategory of Use):	Import
Total Annual U.S. Volume (and percent of PV):	10-20 million pounds per year (1997)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
HSDB, per Chemical Marketing Reporter 1997
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Import
1997
No information on sample size
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
No underlying information provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No discussion of variability or uncertainty
Overall Quality Determination^
Low

2.3


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
433
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
1996. Best management practices for pollution prevention in the slabstock and molded flexible polyurethane foam industry.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3860546
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Blowing Foam
Process Description:	Yes
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EPA Source
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Blowing Foam
Metric 4:
Temporal Representativeness
Low
x 2
6
1996, 22 years old
Metric 5:
Sample Size
Medium
x 1
2
Gives a broad evaluation of Methylene Chloride in the industry
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
High
x 1
1
Well documented.
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Medium

1.8

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
434
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	1989. Alternative control technology document - Halogenated solvent cleaners.
Type of Data Source	Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3860356
EXTRACTION
Parameter
Data
Life Cycle Stage:
Use
Life Cycle Description (Subcategory of Use):
Halogenated Degreasers
Process Description:
Yes
Total Annual U.S. Volume (and percent of PV):
232000 tons
Number of Sites:
130,000-140,000 degreasers in operation.
Batch Size:
varies
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EPA Source
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Halogenated Degreasers
Metric 4:
Temporal Representativeness
Low
x 2
6
1989, 29 years old
Metric 5:
Sample Size
Medium
x 1
2
Gives a broad evaluation of Methylene Chloride in the industry
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Decently well documented.
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Medium

1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
435
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Holbrook, M. T.. 2004. Methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3859416
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Use
General Methylene Chloride Use
Yes
242.6 metric tons (2004)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Medium
X 1
2
Michael T. Holbrook
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
General Methylene Chloride Use
Metric 4:
Temporal Representativeness
Medium
x 2
4
2006, 12 years old
Metric 5:
Sample Size
Low
x 1
3
General evaluation
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Decently well documented.
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Medium

1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
436
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Kaufman, C. M.,Overcash, M. R.. 1993. WASTE MINIMIZATION IN THE MANUFACTURE OF FLEXIBLE
POLYURETHANE FOAMS - QUANTIFICATION OF AUXILIARY BLOWING AGENT VOLATILIZATION. Journal of
the Air and Waste Management Association (1990-1992).
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3588566
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Use
Blowing Foam
Yes
5 million tons
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Medium
X 1
2
No Comment.
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Blowing Foam
1993, 25 years old
Addresses new ways to reduce waste - unclear what the current
state of production is.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Minimal references -seems much of the authority is coming
from the author.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Medium

2.2

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
437
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	1991. Handbook for reducing and eliminating chlorofluorocarbons in flexible polyurethan foams.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3860551
EXTRACTION
Parameter

Data



Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Use
Blowing Foam
Yes


EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
EPA Source
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Blowing Foam
1991, 27 years old
Addresses new ways to blow foam that reduces the use of CFCs.
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Decently well documented.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
438
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	1994. Control of volatile organic compound emissions from batch processes - Alternative control techqniues information
document.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3860363
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Batch Size:
Site Daily Throughput:
Possible Physical Form:
Chemical Concentration:
Use
Pharmaceuticals: Coating tablets
Yes
Hypothetical: Up to 100 tons per year
Hypothetical: 250 lbs
Hypothetical: Up to 250 lbs
Aerosol
80 percent DCM
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	x 1	1 EPA Source
Domain 2: Representative
Metric 2:	Geographic Scope	High	x 1
Metric 3:	Applicability	Medium	x 2
Metric 4:	Temporal Representativeness	Low	x 2
Metric 5:	Sample Size	Low	x 1
1 US
4 Pharmaceuticals: Coating tablets
6 1994, 24 years old
3	Merely discusses a process method utilizing Methylene Chlo-
ride
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	Low	x 1	3 Only results provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3 No Comment.
Overall Quality Determination^
Low

2.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
439
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Jordan, B. ruce C.. 1994. Memorandum: Transmittal of alternative control technology documents.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3860917
EXTRACTION

Parameter
Data
Life Cycle Stage:	EPA
Life Cycle Description (Subcategory of Use):	Industry Guidance on VOC reduction
Process Description:	No
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
EPA
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Unacceptable
Low
N/A
X 1
x 2
x 2
1
8
6
N/A
US
Recommendations on how to limit VOC emissions in air/water.
DCM was 1 of over 100 listed chemical
1994, 24 years old
N/A - no information on DCM
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
N/A

N/A
N/A - no information on DCM
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
N/A

N/A
N/A - no information on DCM
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.7.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
440
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
U.S, E. P. A.. 1996. Solvent study.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3861374
EXTRACTION

Parameter
Data
Life Cycle Stage:	EPA
Life Cycle Description (Subcategory of Use):	Solvents Study
Process Description:	No
EVALUATION






Domain
Metric
Rating
MWF*
Score

Comments
Domain 1: Reliability






Metric 1:
Methodology
High
X 1
1
EPA

Domain 2: Representative






Metric 2:
Geographic Scope
High
X 1
1
US

Metric 3:
Applicability
Unacceptable
x 2
8
Study references DCM in
i its introduction, but does not focus





on it moving forward.

Metric 4:
Temporal Representativeness
Low
x 2
6
1996, 22 years old

Metric 5:
Sample Size
N/A

N/A
N/A - no information on
DCM
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
N/A

N/A
N/A - no information on
DCM
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
N/A

N/A
N/A - no information on
DCM
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.7.

** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
441
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 2008. Control techniques guidelines for fiberglass boat manufacturing materials.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3970051
EXTRACTION
Parameter	Data
Life Cycle Stage:	EPA
Life Cycle Description (Subcategory of Use):	Fiberglass Boat Guidelines
Process Description:	No
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EPA
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Unacceptable
x 2
8
Guideline references DCM, but is not focused on the use of





DCM in the workplace.
Metric 4:
Temporal Representativeness
Medium
x 2
4
2008, 10 years old.
Metric 5:
Sample Size
N/A

N/A
N/A - no information on DCM
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
N/A

N/A
N/A - no information on DCM
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
N/A

N/A
N/A - no information on DCM
Overall Quality Determination^
Unacceptable

4
Metric Mean Score: 2.3.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
I If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
442
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Echa,. 2017. Dichloromethane, Part 2.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3970726
EXTRACTION

Parameter
Data
Life Cycle Stage:	ECHA
Life Cycle Description (Subcategory of Use):	Profile of DCM
Process Description:	No
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
European Chemical Association

Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
Unacceptable
Medium
N/A
X
X
X
1
2
2
2
8
4
N/A
EU
Lists current producers in the EU
Current information
N/A - only provides lists of producers in
EU
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
N/A


N/A
N/A - only provides lists of producers in
EU
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
N/A


N/A
N/A - only provides lists of producers in
EU
Overall Quality Determination^
Unacceptable


4
Metric Mean Score: 2.5.

** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
443
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Upjohn, Company. 1990. Environmental assessment: Excenel sterile suspension (ceftiofur hydrochloride).
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3974795
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Pharmaceuticals Manufacturing
No
DCM: unknownProduct: 3000 kg/year
1
EVALUATION
Domain	Metric	Rating	MWF* Score	Comments
Domain 1: Reliability






Metric 1:
Methodology
Medium
X
1
2
Upjohn Company
Domain 2: Representative






Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
Unacceptable
X
2
8
Utilizes methylene chloride in an unknown way in the proposed






facility
Metric 4:
Temporal Representativeness
Low
X
2
6
1990, 28 years old
Metric 5:
Sample Size
N/A


N/A
N/A - no information on DCM
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
N/A


N/A
N/A - no information on DCM
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
N/A


N/A
N/A - no information on DCM
Overall Quality Determination^	Unacceptable	4 Metric Mean Score: 2.8.
** Consistent with our Application of Systematic Review in TSCARisk Evaluations document, if a metric for a data source receives a score of Unacceptable (score = 4),
EPA will determine the study to be unacceptable. In this case, one of the metrics were rated as unacceptable. As such, the study is considered unacceptable and the
score is presented solely to increase transparency.
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
444
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	1999. 33/50 Program: The final record.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3860543
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Industry-wide use
No
1988: 155,419,301 lbs/yearl996: 68,661,243 lbs/year
1294 companies
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X
1
1
EPA
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Low
Low
Low
XX X X
1
2
2
1
1
6
6
3
US
Addresses 1,294 companies who voluntarily reduced emissions,
but only on total emissions.
1999, 19 years old. Does not address operations, equipment,
or worker activties
N/A - only ^ of companies from this source
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
X
1
1
Data sources, methods, and assumptions are clearly reported.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
X
1
3
Not addressed
Overall Quality Determination^
Low


2.3


* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
445
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
U.S, E. P. A.. 1977. Control of volatile organic emissions from solvent metal cleaning.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3827321
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Degreasing
Process Description:	Yes
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
EPA
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
Low
Low
Low
X 1
x 2
x 2
x 1
1
6
6
3
US
Discusses the function/design of degreasers used in industry.
1977, 41 years old
N/A - only process description from this source
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
N/A - only process description from this source
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
N/A - only process description from this source
Overall Quality Determination^	Low	2.6
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
446
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Hearne, F. T.,Grose, F.,Pifer, J. W.,Friedlander, B. R.,Raleigh, R. L.. 1987. Methylene chloride mortality study: Dose-
response characterization and animal model comparison. Journal of Occupational Medicine.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	730524
EXTRACTION
Parameter	Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Number of Sites:
Operating Days per Year and Batches per Day:
Possible Physical Form:
Chemical Concentration:
Use
manufacture of cellulose triacetate film
Yes
1
24hr/365day
vapor, liquid
30-100 ppm in workroom
EVALUATION
Domain	Metric	Rating MWF* Score	Comments
Domain 1: Reliability
Metric 1: Methodology	High	X 1	1 Lists out different methods used over time and validates their
accuracy in cited source
Domain 2: Representative
Metric 2:
Geographic Scope
High
X
1
1
US
Metric 3:
Applicability
High
X
2
2
Workplace that uses Methylene Chloride
Metric 4:
Temporal Representativeness
Low
X
2
6
1987, 31 years old
Metric 5:
Sample Size
Low
X
1
3
Not characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness	High	X 1	1 Data sources, methods, and assumptions are clearly reported.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low x 1
3 Not addressed
Overall Quality Determination^
Medium
1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
447
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1993. Locating and estimating air emissions from sources of methylene chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3970168
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Number of Sites:
Manufacture
Methylene Chloride Manufacture
Yes
5
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
Uses EPA and other trusted sources
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Workplace that uses Methylene Chloride
1993, 25 years old
N/A - only ^ of sites from this source
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Data sources, methods, and assumptions are clearly reported.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not Addressed
Overall Quality Determination^
Medium

1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
448
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	2008. Background Information Document for Updating AP42 Section 2.4 for Estimating Emissions from Municipal Solid
Waste Landfills.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	1263807
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Number of Sites:
Chemical Concentration:
Disposal
Landfill Gas
No
109
Average: 6.15 ppmMax: 41.2 ppmMin: .0054ppm
EVALUATION




Domain
Metric
Rating
MWF* Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Medium
X 1 2
EPA Source - unclear which methods were used to gather DCM
result, however.
Domain 2: Representative
Metric 2: Geographic Scope
High
X
1
1
US
Metric 3: Applicability
Medium
X
2
4
Facility that is indirectly associated with Methylene Chloride
Metric 4: Temporal Representativeness
Medium
X
2
4
2008, 10 years old.
Metric 5: Sample Size
Low
X
1
3
N/A - only # of sites from this source
Domain 3: Accessibility/Clarity





Metric 6: Metadata Completeness
Medium
X
1
2
Generally well documented, though methods used was unclear





for certain data sets.
Domain 4: Variability and Uncertainty





Metric 7: Metadata Completeness
Medium
X
1
2
Degree of uncertainty is presented in the paper, thought the





measurements of DCM are not well addressed.
Overall Quality Determination^
Medium


2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
449
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	1996. Methyl chloride via oxyhydrochlorination of methane: A building block for chemicals and fuels from natural gas.
Environmental assessment.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	2530707
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Possible Physical Form:
Manufacture
Methyl Chloride Manufacture
Yes
Proposed: 9001bs/hr Methyl Chloride,322.5 lbs Methylene Chloride.
1
vapor, liquid
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
DOE Environmental Assessment
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Facility that manufactures Methylene Chloride
1996, 22 years old
N/A - only ^ of sites from this source
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Few references, but written from a first-hand authority.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not addressed
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
450
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1978. OAQPS guideline series: Control of volatile organic emissions from manufacture of synthesized pharma-
ceutical products.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3970050
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Number of Sites:
Batch Size:
Possible Physical Form:
Use
Manufacture of Pharmaceuticals
Yes
26+
2000-11000 liters
vapor, liquid
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EPA document
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
Workplace that produces Methylene Chloride, but only relates





to environmental emissions
Metric 4:
Temporal Representativeness
Low
x 2
6
1978, 40 years old
Metric 5:
Sample Size
Low
x 1
3
N/A - only ^ of sites from this source
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Majority of metadata present
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
None addressed.
Overall Quality Determination^
Medium

2.2

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
451
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1996. Hazardous air pollutant emissions from the production of flexible polyurethane foam - Basis and purpose
document for proposed standards.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3970122
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Batch Size:
Possible Physical Form:
Use
Slabstock Foam
Yes
16568 tons/yr HAP
78
4'x8'x50'/T00'
vapor, liquid
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
EPA document
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Workplace that uses Methylene Chloride
1996, 22 years old
N/A - only ^ of sites from this source
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Medium
x 1
2
Majority of metadata present
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^
Medium

2.0

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
452
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 1996. Hazardous air pollutant emissions from the production of flexible polyurethane foam - Basis and purpose
document for proposed standards.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3970122
EXTRACTION
Parameter	Data
Life Cycle Stage:
Use
Life Cycle Description (Subcategory of Use):
Molded Foam
Process Description:
Yes
Total Annual U.S. Volume (and percent of PV):
3186 tons/yr HAP
Number of Sites:
228
Operating Days per Year and Batches per Day:
250
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
EPA document
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that uses Methylene Chloride
Metric 4:
Temporal Representativeness
Low
x 2
6
1996, 22 years old
Metric 5:
Sample Size
Low
x 1
3
N/A - only ^ of sites from this source
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Majority of metadata present
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
No Comment.
Overall Quality Determination^	Medium	2.0
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
453
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	European Chlorinated Solvents, Association. 1999. Euro chlor risk assessment for the marine environment, OSPARCOM
region - Norht sea: Dichloromethane.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982130
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Possible Physical Form:
Manufacture
Manufacture
No
138000 tons per year
8
liquid, vapor
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
Low
X 1
3
No discussion about where the metrics came from
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
High
Low
Low
X 1
x 2
x 2
x 1
2
2
6
3
EU
Facilities that produce Methylene Chloride
1999, 19 years old.
N/A - only # of sites from this source
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Sources are documented, but it is unclear how they are used
and what they relate to.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressed.
Overall Quality Determination^
Low
2.4
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
454
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Ec,. 2017. Rapid alert system for dangerous non-food products: Brake caliper spray paint.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982350
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Chemical Concentration:
Use
Consumer Use
No
0.63
EVALUATION






Domain
Metric
Rating
MWF*
Score
Comments

Domain 1: Reliability






Metric 1:
Methodology
Low
X 1
3
No method given.

Domain 2: Representative






Metric 2:
Geographic Scope
Medium
X 1
2
EU

Metric 3:
Applicability
Low
x 2
6
Consumer product similar to one used
in indsutry
Metric 4:
Temporal Representativeness
High
x 2
2
2017

Metric 5:
Sample Size
Low
x 1
3
N/A - only provided cone in consumer
product
Domain 3: Accessibility/Clarity





Metric 6:
Metadata Completeness
Low
x 1
3
N/A - only provided cone in consumer
product
Domain 4: Variability and Uncertainty





Metric 7:
Metadata Completeness
Low
x 1
3
None addressed.

Overall Quality Determination^
Low
2.4
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
455
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	University of Minnesota, Duluth. 1997. American converters eliminates methylene chloride based adhesives: Substitutes
eliminate regulatory compliance burdens without disrupting production.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3982444
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Possible Physical Form:
Chemical Concentration:
Use
Foam Fabrication
Yes
4,170 gal of MC based adhesives (@65 percent MC concentration or
higher)
1
liquid, vapor
>65 percent
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
No method given.
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that uses Methylene Chloride
Metric 4:
Temporal Representativeness
Low
x 2
6
1997, 21 years old
Metric 5:
Sample Size
Low
x 1
3
N/A - only # of sites and cone from this source
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
N/A - only # of sites and cone from this source
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
N/A - only # of sites and cone from this source
Overall Quality Determination^
Low
2.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
456
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Oecd,. 2011. SIDS initial assessment profile: Dichloromethane (methylene chloride).
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3808975
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Manufacture
Methylene Chloride Manufacture
Yes
100,000 tons in EU (2009). Worldwide volume is 764,000-814,000 metric
tonnes
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
Low
X 1
3
No documentation
Domain 2: Representative





Metric 2:
Geographic Scope
Medium
X 1
2
EU
Metric 3:
Applicability
Medium
x 2
4
Overview of industry that produces methylene chloride, but no





specific workplace
Metric 4:
Temporal Representativeness
High
x 2
2
2011, 7 years old
Metric 5:
Sample Size
Low
x 1
3
N/A - only PV provided
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Low
x 1
3
Not documented
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
None addressed.
Overall Quality Determination^
Medium

2.2

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
457
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Ruder, A.. 2006. Potential health effects of occupational chlorinated solvent exposure. Annals of the New York Academy of
Sciences.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	707665
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Use
US DCM consumption.
No
231,000 metric tons (1998)
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH document and sources cited.
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
Overview of industry that produces methylene chloride, but no





specific workplace
Metric 4:
Temporal Representativeness
Medium
x 2
4
2006, 12 years old
Metric 5: Sample Size
Low
x 1
N/A - only PV provided
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High
x 1
1
Clearly documented sources.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
None addressed.
Overall Quality Determination^	Medium	1.9
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
458
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	Niosh,. 1990. Walk-through survey report: Control of methylene chloride in furniture stripping at Colonial Furniture Stripping,
Cincinnati, Ohio.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3809453
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Number of Sites:
Chemical Concentration:
Use
Furniture Stripping
Yes
1
72 percent DCM by weight
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
NIOSH 1005
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
High
x 2
2
Workplace that uses Methylene Chloride
Metric 4:
Temporal Representativeness
Low
x 2
6
1990, 28 years old
Metric 5:
Sample Size
Medium
x 1
2
Reasonable well characterized.
Domain 3: Accessibility/Clarity




Metric 6:
Metadata Completeness
Medium
x 1
2
Reasonable well documented.
Domain 4: Variability and Uncertainty




Metric 7:
Metadata Completeness
Low
x 1
3
None addressed.
Overall Quality Determination^
Medium

1.9

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
459
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	U.S, E. P. A.. 2017. Preliminary Information on Manufacturing, Processing, Distribution, Use, and Disposal: Methylene
Chloride.
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	3986757
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Total Annual U.S. Volume (and percent of PV):
Number of Sites:
Use
Manufacture and Use
Yes
2012: 230,896,388 lbs2013:230,498,027 lbs2014: 248,241,495 lbs2015:
263,971,494 lbs
10
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability





Metric 1:
Methodology
High
X 1
1
Office of Chemical Safety and Pollution Prevention (OCSPP)





Report
Domain 2: Representative





Metric 2:
Geographic Scope
High
X 1
1
US
Metric 3:
Applicability
Medium
x 2
4
Overview of industry that produces methylene chloride, but no





specific workplace
Metric 4:
Temporal Representativeness
High
x 2
2
2017, 1 year old
Metric 5: Sample Size
High
x 1
Well characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
High x 1
1 Well documented.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Medium x 1
2 Not applicable
Overall Quality Determination^
High
1.3

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
460
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Spin,. 2017. SPIN substances in preparations in nordic countries dichlormethane.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
3981130
EXTRACTION

Parameter
Data
Life Cycle Stage:	Manufacture and Use
Life Cycle Description (Subcategory of Use):	Manufacture and Use
Process Description:	No
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
SPIN: Substances in Preparations in Nordic Countries
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
Medium
Medium
High
High
X 1
x 2
x 2
x 1
2
4
2
1
EU/Nordic Countries
Overview of industry that uses Methylene Chloride.
2017, 1 year old
Well characterized
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Database System - not sure where data is being pulled from
based on pdf screen capture.
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
Not applicable
Overall Quality Determination^
Medium

1.8

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
461
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Kirk-Othmer Encyclopedia of Chemical Technology. 2011. Bromine, Organic Compounds.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
2990975
EXTRACTION

Parameter
Data
Life Cycle Stage:	Processing
Life Cycle Description (Subcategory of Use):	Processing as a Reactant
Process Description:	Yes
EVALUATION





Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
x 1
1
Kirk Othmer
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
High
N/A
x 1
x 2
x 2
1
2
2
N/A
US
Processing as a reactant
2011
N/A - process description
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
N/A

N/A
N/A - process description
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
N/A

N/A
N/A - process description
Overall Quality Determination^	High	1.0
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
462
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:
Occupational Safety and Health Adminstration (OSHA). 1998. Methylene Chloride Facts No. 9 - Suggested Work Practices

for Cold Degreasing and Other Cold Cleaning Operations.
Type of Data Source
Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID
5071452
EXTRACTION

Parameter
Data
Life Cycle Stage:	Use
Life Cycle Description (Subcategory of Use):	Cold Degreasing and Other Cold Cleaning:
Process Description:	No
Number of Sites:	23717
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
X 1
1
OSHA
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Low
Low
X 1
x 2
x 2
x 1
1
2
6
3
US
Vapor Degreasing and Cold Cleaning
1998
only provides estimated number of sites
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
Low
x 1
3
Only results provided
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
Low
x 1
3
does not address variability
Overall Quality Determination^
Medium

2.1

* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
463
-------
PEER REVIEW DRAFT - DO NOT CITE OR QUOTE
Source Citation:	The Institute for Research and Technical Assistance (IRTA) . 2006. Protecting the health of lithographic printers - Safer
alternatives to toxic cleanup solvents .
Type of Data Source Facility; Reports for Data or Information Other than Exposure or Release Data;
Hero ID	5071456
EXTRACTION
Parameter
Data
Life Cycle Stage:
Life Cycle Description (Subcategory of Use):
Process Description:
Use
Lithographic Printing
Yes
EVALUATION
Domain
Metric
Rating
MWF*
Score
Comments
Domain 1: Reliability
Metric 1:
Methodology
High
x 1
1
Institute for Research and Technical Assistance (IRTA)
Domain 2: Representative
Metric 2:
Metric 3:
Metric 4:
Metric 5:
Geographic Scope
Applicability
Temporal Representativeness
Sample Size
High
High
Medium
N/A
x 1
x 2
x 2
1
2
4
N/A
US
Lithographic Printing
2006
N/A - process description
Domain 3: Accessibility/Clarity
Metric 6: Metadata Completeness
N/A

N/A
N/A - process description
Domain 4: Variability and Uncertainty
Metric 7: Metadata Completeness
N/A

N/A
N/A - process description
Overall Quality Determination^
High
1.3
* MWF = Metric Weighting Factor
t If any individual metrics are deemed Unacceptable, then the overall rating is also unacceptable. Otherwise, the overall rating is based on the following scale:
High: > 1 to < 1.7; Medium: > 1.7 to < 2.3; Low: > 2.3 to < 3.
464
-------