U.S. Environmental Protection Agency

October 2014

TSCA Work Plan for Chemical Assessments:
2014 Update

Environmental Protection Agency
Office of Pollution Prevention and Toxics
October 2014


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U.S. Environmental Protection Agency

October 2014

I.	Overview

EPA is updating its list of existing chemicals for assessment under the Toxic Substances
Control Act (TSCA); this is known as the TSCA Work Plan for Chemical Assessments. The changes to
the TSCA Work Plan for Chemical Assessments reflect updated industry data submitted to EPA
through the Toxics Release Inventory (TRI) in 2011 and the TSCA Chemical Data Reporting (CDR)
requirements in 2012 on chemical releases and potential exposures. This is the first update to the TSCA
Work Plan for Chemical Assessments, which EPA presented in early 2012. As newer data from TRI
and CDR become available, EPA will update the TSCA Work Plan for Chemical Assessments. The
Agency uses this Work Plan to focus the activities of the Existing Chemicals Program in the Office of
Pollution Prevention and Toxics (OPPT) so that existing chemicals having the highest potential for
exposure and hazard are assessed, and, if warranted, are subject to risk reduction actions.

EPA notes that identification of a chemical on the TSCA Work Plan for Chemical Assessments
does not itself constitute a finding by the Agency that the chemical presents a risk to human health or
the environment. Rather, identification of a chemical on the TSCA Work Plan for Chemical
Assessments indicates only that the Agency intends to consider it for assessment. The Agency believes
that identifying these chemicals early in the review process would afford all interested parties the
opportunity to bring additional relevant information on those chemicals to the Agency's attention to
further inform the assessment.

Identification of chemicals for the TSCA Work Plan for Chemical Assessments does not mean
EPA would not consider other chemicals for assessment and potential risk reduction action under
TSCA and other statutes; for example, if a potential risk has been identified with a chemical or type of
chemicals, EPA may consider these chemicals. EPA will consider other chemicals if warranted by
available information.

II.	Background

The 2012 TSCA Work Plan for Chemical Assessments identified 83 chemicals for assessment
by EPA as part of its chemical safety program. The screening process for identifying these chemicals is
based on a combination of hazard, exposure (including via uses), and persistence and bioaccumulation
characteristics, and is described in the TSCA Work Plan Chemicals Methods Document. The Agency
continues to use this process, which focuses on chemicals that meet one or more of the following
factors:

•	Potential concern for children's health (for example, because of reproductive or
developmental effects)

•	Neurotoxic effects

•	Persistent, bioaccumulative and toxic

•	Probable or known carcinogens

•	Used in children's products or in products to which children may be highly exposed

•	Detected in biomonitoring programs.

EPA also considered other factors in determining whether a chemical should be included on the
TSCA Work Plan for Chemical Assessments. Some chemicals identified as 'high' through this scoring
system may not necessarily be practical candidates for assessment under TSCA when other information

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is factored into the process. For example, the particular risks presented by certain chemicals may
already be addressed by significant regulation under other statutes.

III. 2014 Update to the TSCA Work Plan for Chemical Assessments

EPA updated the TSCA Work Plan for Chemical Assessments by using more recent
information submitted in 2012 under the Chemical Data Reporting Rule (CDR) and data reported in
2011 to the Toxics Release Inventory (TRI). These data were used to update the exposure ranking for
the 345 existing chemicals that were generated under the two-step screening process used in the 2012
TSCA Work Plan for Chemical Assessments. In 2012, the Agency used several sources to identify
chemicals meeting prioritization factor criteria as potential candidates for review; a total of 1,235
chemicals were identified. This group was screened to determine if any chemicals should be excluded
because they are not subject to TSCA or there was already significant regulation under TSCA, or due to
radioactivity, complex process streams, natural occurrence, or other properties. After these chemicals
were excluded, 345 chemicals remained as potential candidates and entered the second stage of the
Work Plan screening, which scored them under three characteristics: hazard, exposure, and potential for
persistence and bioaccumulation. Details of how chemicals were screened and criteria were used are in
the TSCA Work Plan Chemicals: Methods Document.

In addition to re-screening the 345 chemicals identified in 2012, EPA used the methodology
developed for the TSCA Work Plan for Chemical Assessments to screen the Action Plan chemicals.
which were not part of the 2012 TSCA Work Plan for Chemical Assessments, as well as two chemical
flame retardants identified during EPA's development of a flame retardant strategy.

Based on this assessment, EPA is removing 15 of the original chemicals in the TSCA Work
Plan for Chemical Assessments, consolidating one chemical, and adding 23 chemicals to the 2014
update to the TSCA Work Plan for Chemical Assessments, including five Action Plan chemicals or
groups. The TSCA Work Plan for Chemical Assessments: 2014 Update contains 90 chemicals.

Completed Chemical Assessments

EPA has completed assessments for four chemicals that are on the TSCA Work Plan for
Chemical Assessments:

•	Trichloroethylene (TCE): This risk assessment addresses trichloroethylene (TCE) as a
degreaser, a spot-cleaner in dry cleaning and a spray-on protective coating. On June 25,
2014, EPA released the final risk assessment that identified health risks to consumers
using spray aerosol degreasers and spray fixatives and to workers when TCE is used as a
degreaser in small commercial shops and as a stain removing agent in dry cleaning.

•	Methylene Chloride or Dichloromethane (PCM): This risk assessment addresses
methylene chloride in paint stripper products. On August 28, 2014, EPA released the
final risk assessment that indicates health risks to both workers and consumers who use
these products, and to bystanders in workplaces and residences where methylene
chloride is used.

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•	1.3A6.7.8-Hexahvclro-4.6.6.7.8.8.-hexamethvlcvclopentaryl-2-benzoDvran (HHCB):
This risk assessment addresses ecological risks from HHCB as a fragrance ingredient in
commercial and consumer products. On August 28, 2014, EPA released the final risk
assessment that indicated no concern for this use of HHCB.

•	Antimony Trioxide (ATO): This risk assessment addresses effects on ecological
receptors from the use of antimony trioxide (ATO) as a synergist in halogenated flame
retardants. On August 28, 2014, EPA released the final risk assessment that indicated no
concern for this use of ATO.

a. Chemicals Added

i. Action Plan Chemicals

From 2009 to 2011, EPA published ten chemical Action Plans. Five chemicals or groups of
chemicals that scored 'high' under the methodology developed for the TSCA Work Plan for Chemical
Assessments methodology for which EPA has Action Plans are now included in the TSCA Work Plan
for assessment. EPA added the following Action Plan chemicals to the TSCA Work Plan for Chemical
Assessments:

•	Bisphenol A (BPA)

•	Decabromodiphenyl ether (decaBDE)

•	Hexabromocyclododecane (HBCD)

•	Nonylphenols and nonylphenol ethoxylates (NP/NPE)

•	Group of phthalates (dibutyl phthalate (DBP), butyl benzyl phthalate (BBP), di-(2-
ethylhexyl) phthalate (DEHP), di-//-octyl phthalate (DnOP), di-isononyl phthalate (DINP),
di-isodecyl phthalate (DIDP), and di-isobutyl phthalate (DIBP)

Though a July 2014 report provided to the U.S. Consumer Product Safety Commission (CPSC)
by the Chronic Hazard Advisory Panel (CHAP) on Phthalates and Phthalate Alternatives provided a
risk assessment for the eight phthalates described in EPA's Action Plan, EPA is adding seven of these
chemicals to the TSCA Work Plan for Chemical Assessments to determine whether any additional
assessment is needed to supplement the report and address any TSCA-specific uses or exposure
scenarios. One phthalate, di-«-pentyl phthalate (DnPP), is not being added since it is no longer in
commerce.

Five of the ten Action Plan chemicals screened using the methodology of the TSCA Work Plan
for Chemical Assessments will not be added to the TSCA Work Plan during this update.

•	Benzidine dyes are not being added to the 2014 update of the TSCA Work Plan for Chemical
Assessments because they are only moderately persistent and bioaccumulative, and have not
been found to be present in human biomonitoring. Thus, the current exposure potential is
considered low. EPA will propose a Significant New Use Rule for these chemicals so that the
Agency can review any new uses before they are introduced into commerce.

•	EPA has already begun risk management actions for long-chain perfluorinated chemicals
(PFCs), which rank high for hazard due to chronic and developmental toxicity. PFCs

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bioaccumulate in wildlife and humans, and are persistent in the environment. Use of one
subgroup of PFCs (sulfonates) was discontinued in the United States from 2002 to 2006;
additionally, in 2006 EPA and the eight major companies in the industry launched the 2010/15
PFOA Stewardship Program in which companies committed to reduce global facility emissions
and product content of PFOA and related chemicals by 95 percent by 2010, and to work toward
eliminating emissions and product content by 2015. However, EPA remains concerned about
PFCs being produced by companies not participating in the stewardship program. Currently, the
Agency is interested in gathering additional data regarding use of PFCs in imported articles
before determining if these chemicals should be candidates for the assessment process.

•	The diisocyanates methylene diphenyl diisocyanate (MDI) and toluene diisocyanate (TDI)
are not being added to the TSCA Work Plan for Chemical Assessments because they are not
persistent and bioaccumulative, due to their reactivity, and are not found in house dust (factors
considered in the Work Plan Methodology). EPA intends to issue a SNUR for TDI. Given the
toxicity and potential exposure of these chemicals, EPA will consider if other risk management
actions are needed for these chemicals.

•	EPA is not adding short chain chlorinated paraffins because they are no longer domestically
produced or imported into the United States.

ii. Other Chemicals Added

In addition to the five Action Plan chemicals or groups being added, EPA is adding ten
chemicals to the TSCA Work Plan for Chemical Assessments that in 2012 had been considered of
moderate priority for assessment based on the TSCA Work Plan Methodology, and two chemicals that
are part of a widely-used flame retardant.

Chemicals with an Increase in Score

Ten of the chemicals added are part of a group of 345 chemicals the Agency screened in 2012
during the development of the TSCA Work Plan for Chemical Assessments. They are:

•	1,3-Butadiene

•	2,5-Furandione

•	2-Dimethylaminoethanol

•	2-Hydroxy-4-(octyloxy)benzophenone

•	3,3'-Dichloro-benzidine

•	4,4'-(l-Methylethylidene)bis[2,6-dibromophenol] (TBBPA)

•	Barium carbonate

•	Dicyclohexyl phthalate

•	Molybdenum and Molybdenum Compounds

•	Pentachlorothiophenol

In the scoring process for the 2012 TSCA Work Plan for Chemical Assessments, these ten
chemicals received a score of 'moderate.' Recently submitted CDR and TRI data (in 2012 and 2011,
respectively) indicate that they are being domestically produced or imported in greater quantities and
are being used in a larger variety of consumer and children's products, leading to an increase in their

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exposure score and a subsequent increase in their final score to 'high' under Step 2 of the screening
process identified in the Methods Document for the TSCA Work Plan for Chemical Assessments.
Details of their scores and the reasons for adding them are available in the TSCA Work Plan for
Chemical Assessments: 2014 Update (at the end of this document).

Like the group of phthalates included in EPA's Action Plans (and described earlier),
dicyclohexyl phthalate (DCHP) is also covered in the CHAP report on phthalates to CPSC. It also
scores high under the methodology of the TSCA Work Plan for Chemical Assessments and will also be
evaluated by EPA to determine if there are TSCA-specific scenarios that should be assessed.

Flame Retardcmts

Triphenyl phosphate (TPP) and isopropylated phenol, phosphate (iPTPP) are being added,
though they were not among the chemicals screened in 2012. They came to the Agency's attention as
part of EPA's analysis of flame retardant chemicals. Because TPP and iPTPP meet the screening
criteria detailed in the methodology developed for the TSCA Work Plan for Chemical Assessments,
they are being added to the TSCA Work Plan for Chemical Assessments: 2014 Update.

b. Chemicals Removed or Consolidated

Chemicals No Longer in Commerce

Of the original 83 chemicals in the TSCA Work Plan for Chemical Assessments, 67 had no
change or had an increase in their potential exposure to people and the environment, and most continue
to be on the TSCA Work Plan for Chemical Assessments. Thirteen chemicals are being removed from
the TSCA Work Plan for Chemical Assessments because they are not currently in commerce based on
data the Agency received under the CDR rule and as part of TRI reporting. Though these chemicals
may be toxic, persistent and bioaccumulative, and may have been detected in human or environmental
biomonitoring, they no longer present exposure potential from current consumer or commercial use.
Thus, they are being removed from the TSCA Work Plan for Chemical Assessments. The chemicals
being removed are:

•	1,2,4,5-Tetrachloro-benzene

•	4-Chloro-2-methylaniline (p-Chloro-o-toluidine)

•	Benz(a)anthracene

•	Dibenz(a,h)anthracene

•	Dibromochloromethane

•	Dichloroacetic acid

•	Hexabromobiphenyl

•	Hexachlorocyclohexane

•	N-Nitroso-ethylamine

•	N-Nitrosodimethylamine

•	Pentabromophenol

•	Polychlorinated naphthalenes

•	Tris(2,3-di bromopropyl) phosphate (TBP)

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EPA will continue to review data submitted for these chemicals. If new data indicate that these
chemicals have returned to commerce, the Agency will update the TSCA Work Plan for Chemical
Assessments.

Special Cases

EPA is removing mercury and mercury compounds from the TSCA Work Plan for Chemical
Assessments because their hazards are already well characterized and EPA has a strong risk reduction
effort in place. Protecting human health and the environment by reducing exposures to mercury and
mercury compounds remains a priority for EPA, and the Agency has taken and continues to take risk
management measures for these chemicals, including efforts to implement the Minamata Convention.
Therefore, the Agency does not believe that its risk management activities on mercury and mercury
compounds need additional assessment under the process for the TSCA Work Plan for Chemical
Assessments.

EPA is also removing quartz from the TSCA Work Plan for Chemical Assessments because it
presents a hazard only in the context of silicosis from the inhalation of very fine crystalline dust
particles, which might occur only during such occupational activities as sandblasting or stone cutting;
these potential exposures are specifically controlled under regulations issued by the Occupational
Safety and Health Administration.

Polycyclic Aromatic Hydrocarbons

Benzo[a]pyrene is part of a group of polycyclic aromatic hydrocarbons (PAHs). EPA believes
this chemical and other PAHs should be assessed as a category rather than as individual chemical
substances. The exposure and release information EPA receives about PAHs is generally reported as a
mixture of several PAHs, and not as individual chemicals. The Agency will evaluate several PAHs,
including benzo[a]pyrene, as part of an assessment of creosote under the TSCA Work Plan for
Chemical Assessments. Additional individual PAHs previously on the TSCA Work Plan for Chemical
Assessments are being removed since they are no longer in commerce.

c. TSCA Work Plan for Chemical Assessments: 2014 Update

See table on next page.

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TSCA Work Plan for Chemicals Assessments: 2014 Update

This document updates the June 2012 TSCA Work Plan for Chemical Assessment. TheTSCA Work Plan Chemicals Methods Document explains the hazard, exposure, and persistence/bioaccumulation
criteria, the data sources used, and how chemicals were scored. The 2014 Update describes why changes were made.



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

1

Acetaldehyde

Added 2012

Possible human
carcinogen

3

Used in consumer
products

Present in drinking
water, indoor
environments,
ambient air, and
groundwater
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

75-07-0

2

Acrylonitrile

Added 2012

Probable human
carcinogen

3

Widely used in
consumer products
Present in indoor
environments,
surface water,
ambient air, and
groundwater
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Dispersive
Industrial

Not yet initiated

107-13-1

3

tert-Amyl methyl ether

Added 2012

Chronic toxicity
Central nervous
system effects
Potential
carcinogenicity
to specific target
organs

2

Widely used in
consumer products
Present in drinking
water, surface
water, and ambient
air

Estimated to have
moderate releases
to the environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

994-05-8

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.
Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.


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Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

4

Anthra[2,1,9-def:6,5,10-
d'e'f] diisoquinoline-
1,3,8,10(2H,9H)-tetrone
(Pigment Violet 29)

Added 2012

Aquatic toxicity

3*

Widely used in
consumer products
Estimated to have
moderate releases
to the environment

3

High environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

81-33-4

5

Antimony & Antimony
Compounds

Added 2012

Possible human
carcinogen
Developmental
and

reproductive
toxicity Acute
and chronic
toxicity from
inhalation
exposures

3

Widely used in
consumer
products
Present in
biomonitoring,
drinking water,
surface water,
ambient air, and
soil

High reported
releases to the
environment

3

High environmental

persistence

Moderate

bioaccumulation

potential

3

Consumer
Industrial

Final

assessment
complete
August 2014

Category

6

Arsenic & Arsenic
Compounds

Added 2012

Known human
carcinogens
Neurotoxicity
Central nervous
system effects
Acute and
chronic toxicity
from inhalation
exposures

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
surface water,
ambient air, soil
High reported
releases to the
environment

2

High environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

Category

7

Asbestos & Asbestos-
like Fibers

Added 2012

Known human
carcinogens
Acute and
chronic toxicity
from inhalation
exposures

3

Widely used in
consumer products
Present in indoor
environments

3

High environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.
Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.


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Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

8

Barium Carbonate

Added 2014

Acute toxicity

3

Used to

manufacture paper,
special glass,
ceramics, bricks,
enamels, paints,
rubber, electrodes,
and barium salts;
used in oil well
drilling, especially
through gypsum;
used in brines as a
precipitant

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Consumer
Industrial

Not yet initiated

513-77-9

9

Benzenamine

Added 2012

Probable human
carcinogen

3

Used in consumer
products

Present in ambient
air, groundwater,
and soil
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

62-53-3

10

Benzene

Added 2012

Known human
carcinogen

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Dispersive
Industrial

Not yet initiated

71-43-2

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	3


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Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

11

Bisphenol A (BPA)

Added 2014

Reproductive
toxicity

3

Electrical and
electronics
equipment, optical
media, linings in
drinking water
pipes, thermal
paper coatings,
automotive and
transportation
equipment

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Consumer
Industrial

Not yet initiated

80-05-7

12

1-Bromopropane

Added 2012

Possible human
carcinogen

3

Widely used in
consumer products
Present in drinking
water, indoor
environments,
surface water,
ambient air,
groundwater, soil
Estimated to have
high releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Dispersive
Industrial

Initiated 2013

106-94-5

13

1,3-Butadiene

Added 2014

Known human
carcinogen

3

Major commodity
product of the
petrochemical
industry, usually
produced as a by-
product of ethylene
Increasing usage in
the formation of
rocket fuels,
plastics, resins, and
commercial latex
paints Reported
uses in plastic
products, textiles,
apparel

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Consumer
Industrial

Not yet initiated

106-99-0

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.
Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.


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Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

14

Butanamide, 2,2'-[(3,3'-
dichloro[1,1biphenyl]-
4,4'-diyl)bis(azo)]bis[N-
(4-chloro-2,5 -
dimethoxyphenyl)-3-oxo-
(Pigment Yellow 83)

Added 2012

Acute toxicity

2

Used in consumer
products

Estimated to have
high releases to the
environment

3

High environmental

persistence

High

bioaccumulation
potential

3

Consumer
Industrial

Not yet initiated

5567-15-7

15

Butanamide, 2-[(4-

methoxy-2-nitrophenyl)

azo]-N-(2-

methoxyphenyl)-3-oxo-
(Pigment Yellow 65)

Added 2012

Aquatic toxicity

3*

Widely used in
consumer products
Estimated to have
high releases to the
environment

3

High environmental

persistence

Low bioaccumulation

potential

2

Consumer

Not yet initiated

6528-34-3

16

Butyl benzyl phthalate
(BBP)

1,2-Benzene-
dicarboxylic acid, 1-
butyl 2(phenylmethyl)
ester

Added 2014

Chronic aquatic
toxicity

3

Most widely used
stain-resistant
plasticizer in
poly (vinyl chloride)
Widely used in vinyl
tile

Used in
commercial/
industrial products

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Commercial

Consumer

Not yet initiated

85-68-7

17

4-sec-Butyl-2,6-di-tert-
butylphenol

Added 2012

Chronic toxicity

2

Widely used in
consumer products
Estimated to have
moderate releases
to the environment

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

17540-75-9

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	5


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Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

18

Cadmium & Cadmium
Compounds

Added 2012

Known human

carcinogens

Chronic

cardiovascular,

renal and

musculoskeletal

effects

Acute and

chronic toxicity

from inhalation

exposures

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
surface water,
ambient air, soil
High reported
releases to the
environment

3

High environmental

persistence

Moderate

bioaccumulation

potential

3

Consumer
Industrial

Not yet initiated

Category

19

Carbon tetrachloride

Added 2012

Probable human
carcinogen

3

Used in

commercial/industri
al products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

High environmental

persistence

Low bioaccumulation

potential

2

Industrial

Not yet initiated

56-23-5

20

Chromium & Chromium
Compounds

Added 2012

Known human
carcinogens
Reproductive
toxicity

Developmental
toxicity
Acute and
chronic toxicity
from inhalation
exposures

3

Used in commercial/
industrial products
Present in ambient
air

High reported
releases to the
environment

1

High environmental

persistence

Moderate

bioaccumulation

potential

3

Industrial

Not yet initiated

Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	6


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Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

21

Cobalt & Cobalt
Compounds

Added 2012

Cardiovascular
and central
nervous system
effects
Acute and
chronic toxicity
from inhalation
exposures

3

Used in consumer
products
Present in
biomonitoring,
surface water,
ambient air, soil
High reported
releases to the
environment

3

High environmental

persistence

Moderate

bioaccumulation

potential

3

Industrial

Not yet initiated

Category

22

Creosotes

Added 2012

Probable human
carcinogen

3

Widely used in
consumer products
Present in
groundwater, soil
High reported
releases to the
environment

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Industrial

Not yet initiated

8001-58-9

23

Cyanide Compounds
(Limited to dissociable
compounds)

Added 2012

Neurotoxicity
Reproductive
toxicity

Central nervous
system effects

3

Widely used in
consumer products
Present in drinking
water, surface
water, and soil
High reported
releases to the
environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.
Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

24

Decabromodiphenyl
ethers (DecaBDE)

Added 2014

Developmental
toxicity

Aquatic toxicity

3

Has been widely
used in textiles,
plastics and
polyurethane foam
as flame retardants
Articles which were
often treated with
PBDEs include
textiles such as
carpets and
upholstery fabric;
cushions; plastics
used as
components in
electrical
appliances,
devices, and
equipment in
consumer,
commercial, and
industrial use; and
building and
construction
materials

3

High environmental

persistence

High

bioaccumulation
potential

3

Consumer

Commercial

Industrial

Not yet initiated

1163-19-5

25

Dibutyl phthalate (DBP)
(1,2-Benzene-
dicarboxylic acid, 1,2-
dibutyl ester)

Added 2014

Chronic aquatic
toxicity

3

Used in cosmetics,
medical supplies,
textiles, propellant,
food packaging,
dental material, and
paper
Used in the
manufacture of
plastics, paints,
wood varnishes,
and lacquers

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Commercial

Consumer

Not yet initiated

84-74-2

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	8


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

26

o-Dichloro benzene

Added 2012

Chronic toxicity

2

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air and
groundwater
Moderate reported
releases to the
environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Dispersive
Industrial

Not yet initiated

95-50-1

27

p-Dichloro benzene

Added 2012

Possible human
carcinogen

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
ambient air, surface
water, groundwater,
soil

Moderate reported
releases to the
environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

106-46-7

28

3,3'-Dichlorobenzidine

Added 2014

Probable human
carcinogen

3

Used in the
production of dyes

2

Moderate
environmental
persistence
Low

bioaccumulation
potential

2

Industrial

Not yet initiated

91-94-1

29

3,3'-Dichlorobenzidine
dihydrochloride

Added 2012

Probable human
carcinogen

3

Used in consumer
products
Relatively small
reported releases to
the environment

2

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

612-83-9

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.
Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

30

1,1-Dichloroethane

Added 2012

Mutagenicity

2

Used in consumer
products
Present in
biomonitoring,
drinking water,
surface water,
ambient air,
groundwater, soil
Moderate reported
releases to the
environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

75-34-3

31

1,2-Dichloroethane

Added 2012

Possible human
carcinogen

3

Used in

commercial/industri
al products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

107-06-2

32

trans-1,2-
Dichloroethylene

Added 2012

Chronic toxicity

2

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
surface water,
ambient air,
groundwater, soil

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

156-60-5

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.
Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

33

1,2-Dichloropropane

Added 2012

Acute

mammalian

toxicity

2

Used in consumer
products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

High environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

78-87-5

34

Dicyclohexyl phthalate

Added 2014

Acute and
chronic aquatic
toxicity

3*

Plasticizer; heat
sealer for cellulose;
heat sealer for
paper finishes
(labels,

pharmaceutical
labels, price labels)

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Consumer
Industrial

Not yet initiated

84-61-7

35

Di-ethylhexyl phthalate
(DEHP)

(1,2-Benzene-
dicarboxylic acid, 1,2-
bis(2-ethylhexyl) ester)

Added 2014

Chronic aquatic
toxicity

3

Widely used in
medical devices,
such as intravenous
tubing and blood
bags

Widely used in
consumer products
and construction-
related products

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Commercial

Consumer

Not yet initiated

117-81-7

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	H


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

36

Di-isobutyl phthalate
(DIBP)

(1,2-Benzene-
dicarboxylic acid, 1,2-
bis-(2methylpropyl)
ester)

Added 2014

Reproductive
toxicity

1

Specialty plasticizer
often combined with
other phthalates
Used in printing
inks
Used in
nitrocellulose,
cellulose ether, and
polyacrylate and
polyacetate
dispersions

2

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Commercial

Consumer

Not yet initiated

84-69-5

37

Di-isodecyl phthalate
(DIDP)

(1,2-Benzene-
dicarboxylie acid, 1,2-
diisodecyl ester)

Added 2014

Developmental
toxicity

3

Used in cosmetics,
medical supplies,
textiles, propellant,
food packaging,
dental material, and
paper
Used in the
manufacture of
plastics, paints,
wood varnishes,
and lacquers

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Commercial

Consumer

Not yet initiated

26761-40-0

38

Di-isononyl phthalate
(DINP)

(1,2-Benzene-
dicarboxylic acid, 1,2-
diisononyl ester)

Added 2014

Developmental
toxicity

2

Commonly used as
plasticizer in
poly (vinyl chloride)
applications

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Commercial

Consumer

Not yet initiated

28553-12-0

39

1,2-Dimethoxyethane
(Monoglyme)

Added 2012

Reproductive
toxicity

Developmental
toxicity

Chronic toxicity

3

Widely used in
consumer products
Estimated to have
high releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

110-71-4

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	12


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

40

2-

Dimethylaminoethanol

Added 2014

Acute toxicity

3

Intermediate in the
synthesis of
dyestuffs, textile,
auxiliaries,
pharmaceuticals
and corrosion
inhibitors,

emulsifiers in paints
and coatings Some
uses in adhesives
and sealants

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Not yet initiated

108-01-0

41

Di-n-octyl phthalate
(DnOP)

(1,2-Benzene-
dicarboxylic acid, 1,2-
dioctyl ester)

Added 2014

Reproductive
toxicity

2

Commonly used as
plasticizer in
poly (vinyl chloride)
applications

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Commercial

Consumer

Not yet initiated

117-84-0

42

1,4-Dioxane

Added 2012

Possible human
carcinogen

3

Widely used in
consumer products
Present in
groundwater,
ambient air and
indoor environments
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Dispersive
Industrial

Initiated 2014

123-91-1

43

Ethanone, 1-
(1,2,3,4,5,6,7,8-
octahydro-2,3,5,5-
tetramethyl-2-
naphthalenyl)-

Added 2012

Aquatic toxicity

3*

Widely used in
consumer products
Estimated to have
high releases to the
environment

3

Moderate
environmental
persistence
High

bioaccumulation
potential

3

Consumer
Industrial

Not yet initiated

54464-59-4

44

Ethanone, 1-
(1,2,3,4,5,6,7,8-
octahydro-2,3,8,8-
tetramethyl-2-
naphthalenyl)-

Added 2012

Aquatic toxicity

1*

Widely used in
consumer products
Estimated to have
high releases to the
environment

3

Moderate
environmental
persistence
High

bioaccumulation
potential

3

Consumer
Industrial

Not yet initiated

54464-57-2

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	13


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

45

Ethanone, 1-
(1,2,3,4,6,7,8,8a-
octahydro- 2,3,8,8-
tetramethyl-2-
naphthalenyl)-

Added 2012

Aquatic toxicity

3*

Widely used in
consumer products
Estimated to have
high releases to the
environment

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

68155-67-9

46

Ethanone, 1-
(1,2,3,5,6,7,8,8a-
octahydro- 2,3,8,8-
tetramethyl-2-
naphthalenyl)-

Added 2012

Aquatic toxicity

3*

Widely used in
consumer products
Estimated to have
high releases to the
environment

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

68155-66-8

47

Ethylbenzene

Added 2012

Possible human
carcinogen

3

Used in consumer
products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

100-41-4

48

Ethylene dibromide

Added 2012

Probable human
carcinogen

3

Used in

commercial/industri
al products
Present in drinking
water, indoor
environments,
surface water,
ambient air,
groundwater, soil
Relatively small
reported releases to
the environment

2

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

106-93-4

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	14


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

49

bis(2-Ethylhexyl)
ad i pate

Added 2012

Possible human
carcinogen

3

Widely used in
consumer products
Present in drinking
water, and indoor
environments
Estimated to have
high releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

103-23-1

50

2-Ethylhexyl 2,3,4,5-
tetrabromobenzoate
(TBB)

Added 2012

Developmental
toxicity
Acute and
chronic aquatic
toxicity

2

Used in consumer
products
Present in indoor
environments and
soil

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Industrial

Initiated 2013

183658-27-7

51

bis(2-Ethylhexyl) -
3,4,5,6-

tetrabromophthalate
(TBPH)

Added 2012

Developmental
toxicity
Acute and
chronic aquatic
toxicity

2

Used in consumer
products
Present in indoor
environments
Estimated to have
moderate releases
to the environment

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Industrial

Initiated 2013

26040-51-7

52

Formaldehyde

Added 2012

Known human
carcinogen

3

Used in consumer
products
Present in indoor
environments,
drinking water,
ambient air, and
groundwater
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

50-00-0

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.
Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

53

2,5-Furandione

Added 2014

Acute and
chronic aquatic
toxicity

3*

Chemical
intermediate for
thousands of
substances
including lubricating
oil additives,
personal care
products,
adhesives, floor
polishes, water
treatment
chemicals,
detergents, paper
sizing, epoxy curing
agents, and leather
treatment

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Industrial

Not yet initiated

108-31-6

54

Hexabromocyclododec
ane (HBCD)

Added 2014

Acute aquatic
toxcity

3*

Flame retardant in
extruded

polystyrene foam,
textiles, and
elctrical and
electronic
appliances

3

High environmental

persistence

High

bioaccumulation
potential

3

Consumer

Initiated 2013

3194-55-6

55

Hexachlorobutadiene

Added 2012

Possible human
carcinogen

3

Present in indoor
environments,
surface water,
ambient air,
groundwater, soil
Relatively small
reported releases to
the environment

2

High environmental

persistence

High

bioaccumulation
potential

3

Industrial

Not yet initiated

87-68-3

56

Motes:

1-Hexadecanol

Added 2012

Chronic toxicity

2

Widely used in
consumer products
Present in surface
water, ambient air,
and soil

Estimated to have
high releases to the
environment

3

Low environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Dispersive
Industrial

Not yet initiated

36653-82-4

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	16


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

57

1,3,4,6,7,8-Hexahydro-
4,6,6,7,8,8-

hexamethylcyclopenta

[g]-2-benzopyran

(HHCB)

Added 2012

Developmental
toxicity

2

Widely used in
consumer
products
Present in
biomonitoring
Estimated to have
high releases to
the environment

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Dispersive

Final

assessment
complete
August 2014

1222-05-5

58

2-Hydroxy-4-(octyloxy)
benzophenone

Added 2014

Acute and
chronic aquatic
toxicity

3*

UV stablizer for
polymers; used in
rubber and plastic
products Numerous
food packaging
uses (especially as
a stablizer for
petroleum wax)

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Consumer
Commercial

Not yet initiated

1843-05-6

59

Lead & Lead
Compounds

Added 2012

Neurotoxicity

Developmental

toxicity

Reproductive

toxicity

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air, soil
High reported
releases to the
environment

3

High environmental

persistence

Moderate

bioaccumulation

potential

3

Consumer
Industrial

Not yet initiated

Category

60

Long-chain chlorinated
paraffins (C18-20)

Added 2012

Chronic toxicity
to target organs
including the
liver, kidneys
and thyroid
Aquatic toxicity

2

Present in
biomonitoring,
surface water, and
soil

Used in commercial/
industrial products

2

High environmental

persistence

High

bioaccumulation
potential

3

Industrial
Dispersive

Initiated 2012

Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	17


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

61

Medium-chain
chlorinated paraffins
(C14-17)

Added 2012

Chronic toxicity
to target organs
including the
liver, kidneys
and thyroid
Aquatic toxicity

2

Used in consumer
products

Estimated to have
high releases to the
environment

2

High environmental

persistence

High

bioaccumulation
potential

3

Consumer
Dispersive
Industrial

Initiated 2012

Category

62

Methylene chloride

Added 2012

Probable

human

carcinogen

3

Widely used in

consumer

products

Present in drinking
water, indoor
environments,
ambient air,
groundwater, and
soil

High reported

3

Low environmental

persistence

Low

bioaccumulation
potential

1

Consumer
Industrial

Final

assessment
complete
August 2014.
Pursuing risk
reduction

75-09-2

63

4,4'-Methylene bis(2-
chloroaniline)

Added 2012

Known human
carcinogen

3

Widely used in
consumer products
Present only in
ambient air
Relatively small
reported releases to
the environment

2

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

101-14-4

64

4,4'-(1-

Methylethylidene)bis[2,

6-dibromophenol]

(TBBPA)

Added 2014

Acute aquatic
toxcity

2*

Flame retardant in
epoxy resin circuit
boards and in
electronic
enclosures

3

High environmental

persistence

Low

bioaccumulation
potential

2

Consumer

Not yet initiated

79-94-7

65

N-Methyl-2-pyrrolidone
(NMP)

Added 2012

Reproductive
toxicity

3

Widely used in
consumer products
Present in drikning
water and indoor
environments
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Initiated 2012

872-50-4

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	IS


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

66

Molybdenum and

Molybdenum

Compounds

Added 2014

Chronic toxicity

1

Alloying agent in
cast iron, steel, and
super alloys to
increase
hardenability,
strength,
toughness, and
corrosion
resistance Used
for electrical lead-in
(in halogen lamps
and electric
furnaces) and wear-
resistant coatings
for machine &
engine parts Also
used in glass and
nuclear energy
industries

3

High environmental

persistence

Moderate

bioaccumulation

potential

3

Consumer
Industrial

Not yet initiated

Category

67

Naphthalene

Added 2012

Possible human
carcinogen

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

91-20-3

68

2-

Naphthalenecarboxylic
acid, 4-[(4-chloro-5-
methyl-2-sulfophenyl)
azo]-3-hydroxy-,
calcium salt (1:1)
(Pigment Red 52)

Added 2012

Aquatic toxicity

3*

Widely used in
consumer products
Estimated to have
moderate releases
to the environment

2

High environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

17852-99-2

























An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	19


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U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

69

Nickel & Nickel
Compounds

Added 2012

Known human
carcinogens
Acute and
chronic toxicity
from inhalation
exposures

3

Used in consumer
products

Present in ambient
air

High reported
releases to the
environment

2

High environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

Category

70

N-Nitroso-
diphenylamine

Added 2012

Probable human
carcinogen

3

Used in consumer
products

Present in surface
water, groundwater,
soil

Relatively small
reported releases to
the environment

2

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

86-30-6

71

Nonylphenol and
Nonylphenol
Ethoxylates (NP/NPEs)

Added 2014

Reproductive
toxicity

Developmental
toxicity Aquatic
toxicity

3

In industrial
detergents as well
as other cleaners,
degreasers (some
for consumer use),
and dry cleaning
Industrial uses
include petroleum
dispersants,
emulsifiers, wetting
agents, adhesives,
paper and textile
processing
formulations,
prewash spotters,
metalworking fluids,
some paints and
coatings, and dust
control agents

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Commercial
Industrial

Not yet initiated

Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	20


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U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

72

Octamethylcyclotetra-
siloxane (D4)

Added 2012

Reproductive
toxicity

2

Used in consumer
products
Present in
biomonitoring,
drinking water,
indoor

environments, and
surface water
Estimated to have
high releases to the
environment

3

Moderate
environmental
persistence
High

bioaccumulation
potential

3

Consumer
Dispersive
Industrial

Initiated 2012

556-67-2

73

4-tert-Octylphenol
(4-(1,1,3,3-
Tetramethylbutyl)-
phenol)

Added 2012

Aquatic toxicity

3*

Used in consumer
products
Present in
biomonitoring and
drinking water
Estimated to have
moderate releases
to the environment

3

High environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

140-66-9

74

P,P'-

Oxybis(benzenesulfonyl
hydrazide)

Added 2012

Reproductive

toxicity

Mutagenicity

3

Used in consumer
products

Estimated to have
moderate releases
to the environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer

Not yet initiated

80-51-3

75

Pentachlorothio-phenol

Added 2014

Acute and
chronic toxicity

3

A mercaptan
(sulfur) cross-
linking agent that
makes rubber more
pliable

1

High environmental

persistence

High

bioaccumulation
potential

3

Industrial

Not yet initiated

133-49-3

76

Phenol, isopropylated,
phosphate (3:1)
(iPTPP)

Added 2014

Neurotoxicity
Aquatic toxicity

3

Widely used as a
flame retardant

3

High environmental

persistence

High

bioaccumulation
potential

3

Consumer
Industrial

Not yet initiated

68937-41-7

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	21


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U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

77

Phosphoric acid,
triphenyl ester (TPP)

Added 2014

Acute and
chronic aquatic
toxicity

3*

Widely used as a
flame retardant in
polyurethane foam,
PVC, printed wiring
boards, children's
products
Applications in
polymers in high-
impact

polystyrenes, epoxy
resins, and
adhesives (minor
use)

3

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

115-86-6

78

Phthalic anhydride

Added 2012

Respiratory
sensitizer

3

Widely used in
consumer products
Present in
groundwater and
ambient air
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

85-44-9

79

Styrene

Added 2012

Possible human
carcinogen
Central nervous
system effects

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air, and
groundwater, soil
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

100-42-5

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	22


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U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

80

Tetrachloroethylene
(PERC)

Added 2012

Probable human
carcinogen

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
indoor

environments,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

High environmental

persistence

Low bioaccumulation

potential

2

Consumer
Dispersive
Industrial

Not yet initiated

127-18-4

81

Tribromomethane
(Bromoform)

Added 2012

Probable human
carcinogen

3

Used in consumer
products
Present in
biomonitoring,
drinking water,
surface water,
ambient air, and
groundwater
Moderate reported
releases to the
environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

75-25-2

82

1,1,2-1 richloroethane

Added 2012

Possible human
carcinogen

3

Widely used
consumer products
Present in
biomonitoring,
drinking water,
surface water,
ambient air,
groundwater, and
soil

Moderate reported
releases to the
environment

2

High environmental

persistence

Low bioaccumulation

potential

2

Dispersive

Not yet initiated

79-00-5

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	23


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U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

83

Trichloroethylene
(TCE)

Added 2012

Probable

human

carcinogen

3

Widely used in

consumer

products

Present in drinking
water, indoor
environments,
surface water,
ambient air,
groundwater, and
soil

3

High environmental

persistence

Low

bioaccumulation
potential

2

Consumer
Industrial

Final

assessment
complete June
2014. Pursuing
risk reduction

79-01-6

84

Triglycidyl isocyanurate

Added 2012

Reproductive
toxicity
Mutagenicity
Acute toxicity
from inhalation
exposures

3

Widely used in
consumer products
Estimated to have
high releases to the
environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

2451-62-9

85

Tris(2-chloroethyl)

phosphate

(TCEP)

Added 2012

Mutagenicity
Limited evidence
of

carcinogenicity

2

Widely used in
consumer products
Present in drinking
water, and indoor
environments
Estimated to have
moderate releases
to the environment

2

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Initiated 2013

115-96-8

86

2,4,6-T ris(-tert-
butyl)phenol

Added 2012

Chronic toxicity
and liver effects

2

Widely used in
consumer products
Present in indoor
environments
Estimated to have
moderate releases
to the environment

2

Moderate
environmental
persistence
High

bioaccumulation
potential

3

Consumer
Industrial

Not yet initiated

732-26-3

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	24


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

87

Vinyl chloride

Added 2012

Known human
carcinogen

3

Used in consumer
products

Present in drinking
water, indoor
environments,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

Not yet initiated

75-01-4

88

m-Xylene

Added 2012

Reproductive
toxicity

Developmental
toxicity

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

108-38-3

89

o-Xylene

Added 2012

Chronic toxicity

3

Used in consumer
products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

95-47-6

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	25


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

90

p-Xylene

Added 2012

Reproductive
toxicity

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
surface water,
ambient air,
groundwater, soil
High reported
releases to the
environment

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

Not yet initiated

106-42-3

TSCA Work Plan Chemicals for Assessment: 2014 Update - Chemicals Removed or Consolidated



Chemical Name

When was the
chemical
added and
removed?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status or Other
Action

CASRN

1

Benz[a]anthracene

Added 2012

Removed

2014

Probable human
carcinogen

3

Present in

biomonitoring,

indoor

environments,
surface water,
ambient air,
groundwater, and
soil

2

High environmental

persistence

Moderate

bioaccumulation

potential

3

Dispersive
Industrial

No assessment

56-55-3

2

p-Chloro-o-toluidine

Added 2012

Removed

2014

Probable human
carcinogen

3

Present in
biomonitoring,
surface water, and
soil

2

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Industrial

No assessment

95-69-2

3

Dibenz(a,h)anthracene

Added 2012

Removed

2014

Probable human
carcinogen

3

Present in indoor
environments,
surface water,
ambient air,
groundwater, and
soil

2

Moderate

environmental

persistence

Moderate

bioaccumulation

potential

2

Dispersive

No assessment

53-70-3

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	26


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

4

Dibromochloromethane

Added 2012

Removed

2014

Possible human
carcinogen

3

Present in
biomonitoring,
surface water,
ambient air, and soil

2

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Industrial

No assessment

124-48-1

5

Dichloroacetic acid

Added 2012

Removed

2014

Possible human
carcinogen

3

Used in consumer
products

Present in drinking
water

3

Low environmental

persistence

Low bioaccumulation

potential

1

Consumer
Industrial

No assessment

79-43-6

6

Hexabromobiphenyl

Added 2012

Removed

2014

Possible human
carcinogen

3

Used in consumer
products

Present in ambient
air and soil

2

High environmental

persistence

High

bioaccumulation
potential

3

Industrial

No assessment

36355-01-8

7

Hexachlorocyclohexane

Added 2012

Removed

2014

Possible human
carcinogen

3

Present in
biomonitoring and
surface water

2

High environmental

persistence

Moderate

bioaccumulation

potential

3

Industrial

No assessment

608-73-1

8

Mercury & Mercury
Compounds

Added 2012

Removed

2014

Neurotoxicity

Developmental

toxicity

Chronic nervous
system and
hepatic effects

3

Widely used in
consumer products
Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air, soil
High reported
releases to the
environment

3

High environmental

persistence

Moderate

bioaccumulation

potential

3

Consumer
Industrial

No assessment

Category

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	27


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

9

N-Nitrosodiethylamine

Added 2012

Removed

2014

Probable human
carcinogen

3

Present in
biomonitoring,
surface water, and
ambient air,
groundwater, and
soil

Relatively small
reported releases to
the environment

2

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Industrial

No assessment

55-18-5

10

N-Nitrosodimethylamine

Added 2012

Removed

2014

Probable human
carcinogen

3

Widely used in
consumer products
Present in drinking
water, surface
water, ambient air,
groundwater, and
soil

3

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer
Dispersive
Industrial

No assessment

62-75-9

11

Pentabromophenol

Added 2012

Removed

2014

Acute toxicity

3

Used in consumer
products

Present in surface
water and soil

2

High environmental

persistence

Low bioaccumulation

potential

2

Industrial

No assessment

608-71-9

12

Poly chlorinated
naphthalenes

Added 2012

Removed

2014

Acute dermal
toxicity
Chronic liver
effects

1

Widely used in
consumer products
Present in
biomonitoring

3

High environmental

persistence

High

bioaccumulation
potential

3

Industrial

No assessment

Category

13

Quartz (Respirable
forms only)

Added 2012

Removed

2014

Probable human
carcinogen

3

Widely used in
consumer products
Present in drinking
water

Estimated to have
high releases to the
environment

3

High environmental

persistence

Low bioaccumulation

potential

2

Consumer
Industrial

No assessment

14808-60-7

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	28


-------
U.S. Environmental Protection Agency

October 2014



Chemical Name

When was the
chemical
added?

Hazard Criteria
Met

Hazard
Score

Exposure Criteria
Met

Exposure
Score

Persistence &
Bioaccumulation
Criteria Met

Persistence &
Bioaccumulation
Score

Use

Risk
Assessment
Status and
Other Actions

CASRN

14

1,2,4,5-

Tetrachloro benzene

Added 2012

Removed

2014

Chronic toxicity

3

Present in ground
water and soil

1

Moderate
environmental
persistence
High

bioaccumulation
potential

3

Industrial

No assessment

95-94-3

15

Tris(2,3-dibromopropyl)

phosphate

(TBP)

Added 2012

Removed

2014

Probable human
carcinogen

3

Widely used in
consumer products
Relatively small
reported releases to
the environment

0

Moderate

environmental

persistence

Low bioaccumulation

potential

2

Consumer

No assessment

126-72-7

16

Benzo[a]pyrene

Added 2012

Consolidated

2014

Known human
carcinogen

3

Present in
biomonitoring,
drinking water,
indoor

environments,
surface water,
ambient air,
groundwater, and
soil

2

High environmental

persistence

Moderate

bioaccumulation

potential

3

Dispersive
Industrial

No assessment

50-32-8

Notes:

An asterisk (*) in the Hazard Score column indicates the score is based solely on environmental toxicity.

Chemicals in italics were added in 2014.

Chemicals in bold have final risk assessments.	29


-------