&EFA
           United States      Office of Air Quality      EPA-451/R-96-006
           Environmental Protection Planning and Standards     March 1996
           Agency        Research Triangle Park, NC 27711

           Air/Superfund
AIR/SUPERFUND
NATIONAL TECHNICAL GUIDANCE
STUDY SERIES
           AIR/SUPERFUND GUIDE TO POLLUTANT
           TOXICITY

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               AIR/SUPERFUND NATIONAL TECHNICAL
                     GUIDANCE STUDY SERIES
                            ASF-37
AIR/SUPERFUND GUIDE TO POLLUTANT TOXICITY
                    Contract No. 68-D3-0032
                   Work Assignment No.  11-59
                                  U.S. Environmental Protection Agency
                                  Region 5, Library (PL-12J)
                                  77 West Jackson Boulevard, 12th Floor
                                  Chicago, IL 60604-3590
         OFFICE OF AIR QUALITY PLANNING AND STANDARDS
             U.S. ENVIRONMENTAL PROTECTION AGENCY
         RESEARCH TRIANGLE PARK, NORTH CAROLINA  27711
                          March  1996

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                           DISCLAIMER

     This report was prepared for the U.S.  Environmental
Protection Agency under Contract 68-D3-0032,  Work Assignment No.
11-59.  The contents are reproduced herein as received from the
contractor.  The mention of product names or trademarks are not
intended as endorsements of the products or their use.  The
opinions, findings, and conclusions expressed are those of the
contractor and do not necessarily reflect those of the U.S.
Environmental Protection Agency.

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                        TABLE OF CONTENTS
CHAPTER 1:     INTRODUCTION  	  1-1

CHAPTER 2:     INHALATION EXPOSURE LIMITS FOR INDIVIDUAL
               AIR POLLUTANTS  (RANKED BY EXPOSURE LIMIT)   .  .2-1

APPENDIX A:    REFERENCES 	  A-l

APPENDIX B:    LISTING OF AIR POLLUTANTS AND
               THEIR SYNONYMS	B-l

APPENDIX C:    LISTING OF COMMON AIR POLLUTANT ACRONYMS
               AND ABBREVIATIONS  (WITH DEFINITIONS AND
               REFERENCES)   	C-l

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                            CHAPTER 1
INTRODUCTION

     This guide was originally developed in response to a
technical assistance request  (TAR 29) from U.S. EPA Region VIII
to compile a list of existing health-related values  (inhalation
equivalent only) for thirty-four individual pollutants.  The data
was needed to assist Air/Superfund Coordinators in the analysis
of health-related impacts of air emissions from Superfund sites.
This latest revision to the Guide adds forty-five additional
chemicals, resulting in a total of seventy-nine chemicals.  The
pollutants included are listed below:
VOCs:

Aroclor-1260
Barium
Benzene
Benzyl Chloride
Carbon Bisulfide
Carbon Tetrachloride
Chlorobenzene  (MCB)
Chloroform
2,4-Dichlorophenoxyacetic Acid
1,2-Dibromoethane
1,4-Dichlorobenzene
M-Dichlorobenzene
O-Dichlorobenzene
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethene
C-l,2-Dichloroethylene
Dichloroethyl Ether
Dichloromethane
1,2-Dichloropropane
Cis/Trans 1,3-Dichloropropylene
2,4-Dinitrotoluene
Ethylbenzene
Ethyl Chloride
Formaldehyde
Freon 11
Freon 12
Hexachlorobenzene
Hexachloro-1,3-Butadiene
Hexahydro-1,3,5-Trinitro-l,3,5-
Triazine  (RDX)
Hexane
Hydrogen Fluoride  (As F)
Manganese Compounds and fume (As
Mn)
Methyl Chloride
Methyl Chloroform
Methyl Ethyl Ketone
Methyl Isobutyl Ketone
Methyl Isocyanate
Methyl Tert-butyl Ether  (MTBE)
Methylene Chloride
Naphthalene
N-Nitrosodimethylamine
N-Nitrosodiphenylamine
Octahydro-1,3,5,7-Tetranitro-
1>3,5,7-Tetraccine  (HMX)
Pentachlorophenol
Styrene
2,3,7,8-Tetrachlorodibenzo-p-
Dioxin
1,1,2,2-Tetrachloroethane
Tetrachloroethylene  (PCE)
Tetryl
Toluene
1,1,2-Trichloro-l,2,2-
Trifluoroethane
1,2,4-Trichlorobenzene
1,1,2-Trichloroethane
Trichloroethylene
1,2,4-Trimethylbenzene
1,3,5-Trimethylbenzene
2,4,6-Trinitrotoluene
Vinyl Chloride
Vinylidene Chloride
M-Xylene
0-Xylene
P-Xylene
Total Xylenes
                               1-1

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Metals:                               Heavy Organic Compounds:

Arsenic                              Benzo  (a) pyrene
Beryllium                            PCBs
Cadmium
Chromium  (VI)
Lead
Mercury
Zinc

Pesticides:

Aldrin
Chlordane
DDT
Dieldrin
Heptachlor
Toxaphene


     Health-related values were identified from sources such as
the American Conference of Governmental Industrial Hygienists
(ACGIH),  the National Institute for Occupational Safety and
Health (NIOSH),  and the Occupational Safety and Health
Administration  (OSHA).   Ambient air standards were also
identified from States around the country.   A summary of the data
gathering effort involved the following for each pollutant
identified:

     •    Searching both scientific literature and State
          regulations for all health related concentrations

     •    Preparing a listing of each concentration or limit

     •    Providing definitions of each of the common values
          listed

     •    Preparing a listing of compound synonyms and health
          effect descriptions.

     Chapter 2 contains the inhalation exposure limits identified
for each of the seventy-nine pollutants ranked by exposure limit.
Note that for many of the metal categories,  data was collected
for only the metal listed and not for the many compounds that
might contain the metal.  Appendix A contains the references used
to develop the tables in Chapter 2.  Appendix B contains an
alphabetical listing of the seventy-nine pollutants and their
synonyms. Appendix C contains a listing of the common acronyms
and abbreviations; definitions of the common values used; and
each of the references which were cited.
                               1-2

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                           CHAPTER  2:
INHALATION EXPOSURE LIMIT FOR INDIVIDUAL AIR POLLUTANTS  (RANKED
                      BY  EXPOSURE LIMIT)

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ALDRIN
CAS Number 309-00-2
Exposure Limit Range
(Mg/m3)
2. 00 x 10'4 to 1. 00 x 105
APPLICABLE
DEFINITION
NIOSH IDLH1'3
NIOSH REL1
OSHA PEL TWA2
SAAPS3 NV
SAAPS3 WI
SAAPS3 VA
SAAPS3 FL, ND
SAAPS3 TX
SAAPS3 CT
SAAPS3 FL
SAAPS3 AZ
SAAPS3 TX
SAAPS3 AZ
SAAPS3 PA
RfG13,a
SAAPS3 AZ, KS
CONCENTRATION
FOR 10'6 RISK4'b
SAAPS3 FL, WA
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
Mg/m3
1.00 x 105 Ca
2.50 x 102
2.50 x 102
6.00
6.00
4 .20
2 .50
2.50
1.50
6.00 x 10"1
3.80 x 10"1
2.50 x 10"1
1.00 x 10"1
3.50 x 10"2
3.70 x 10"4Ca
2.80 x 10'4
2.00 x 10'4
2.00 x 10~4
Time
30 min.
10 hr.
8 hr.
8 hr.
24 hr.
24 hr.
8 hr.
30 min.
8 hr.
24 hr.
1 hr.
1 yr .
24 hr.
1 yr.
Lifetime
1 yr .
70 yr.
1 yr .
Footnotes to Aldrin:

a   A compound  is considered
   Ca.
b   Concentration equivalent
to be cancer-causing if denoted by

to a 10"6 risk exposure.
                               2-1

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AROCLOR-1260
CAS Number 11096-82-5
Exposure Limit Range
(Mg/m3)
8.1 to 8 . 00 x 103
APPLICABLE
DEFINITION
SAAPS3 VA
SAAPS3 SC
SAAPS3 NY
ACGIH TLV-TWA5
NIOSH REL TWA5
ACGIH TLV-TWA5
SAAPS3 KS
SAAPS3 MA
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
^g/m3
8.00 x 103
2.50 x 103
1.67 x 103
1.00 x 103
Chlorodiphenyl
(42% Chlorine)
1.00 x 103
5.00 x 103
Chlorodiphenyl
(54% Chlorine)
8.3
8.1
Time
1 yr .
24 hr.
24 hr.
8 hr.
10 hr.
8 hr.
1 yr.
24 hr.
2-2

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ARSENIC
CAS Number 7440-38-2
Exposure Limit Range
(Mg/m3)
2.00 x 10'4 to 1.00 x 105
APPLICABLE
DEFINITION
NIOSH IDLH1'3
NOAEL6'b
LOAEL6 -c
LOAEL6'd
ACGIH TLV-TWA6
NOAEL6'6
LOAEL6' f, NOAEL6'b
LOAEL6'3
LOAEL6'h
LOAEL6 ^
LOAEL6'j
LOAEL6 'k
LOAEL6'1
OSHA PEL TWA1'"1
OSHA ACTION LEVEL6,
SAAPS3 NV
SAAPS3 TX
SAAPS3 VA
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
jug/™3
1.00 x 105 Ca
1.00 x 103
5.00 x 102
3 .00 x 102
2.00 x 102
1.30 x 102
1.10 x 102
7.80 x 101
7.00 x 101
5.50 x 101
5.00 x 101
3 .00 X 101
1.00 x 101
1.00 x 101
5.00
5.00
3.30
Time
30 min.
2-50 yr . (occup. )
23 yr . (occup. )
13-22 yr.
(occup . )
8 hr.
1-2 yr . (occup . )
2 mo. (occup. )
2-50 yr . (occup. )
3-22 yr . (occup . )
1-30 yr . (occup . )
14-40 yr.
(occup. )
1+ yr . (occup. )
1-30 yr . (occup . )
8 hr.
8 hr.
30 min.
24 hr.
2-3

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ARSENIC
CAS Number 7440-38-2
Exposure Limit Range
(Mg/m3)
2.00 x 10'4 to 1.00 x 105
APPLICABLE
DEFINITION
NIOSH CEILING6
SAAPS3 FL, ND
SAAPS3 NY
SAAPS3 TX
SAAPS3 FL
SAAPS3 MT
SAAPS3 AZ
SAAPS3 MI
SAAPS3 AZ
SAAPS3 MT
SAAPS3 CT
SAAPS3 PA
SAAPS3 LA
SAAPS3 OK
RfG13,a
SAAPS3 KS
SAAPS3 AZ, FL, IL,
NC, VT, WA
SAAPS3 RI
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
^tg/m3
2.00
2.00
6.70 x 10"1
5.00 x 10"1
4.80 X 10'1
3.90 X 10"1
3.20 x lO'1
2.30 X ID'1
8.40 X 10~2
7.00 x 10"2
5.00 x 10~2
2.40 X 10~2
2.00 x 10~2
2.00 x 10~2
4.10 x 10'4Ca
2.33 x 10"4
2.30 x 1CT4
2.00 x 10~4
Time
10 hr.
8 hr.
1 yr.
1 yr .
24 hr.
24 hr.
1 hr.
1 yr .
24 hr.
1 yr.
8 hr.
1 yr .
1 yr.
24 hr.
Lifetime
1 yr .
1 yr .
1 yr .
2-4

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Footnotes to Arsenic:

a  A  compound  is considered to be cancer-causing if denoted by
   Ca.
b  Intermediate exposure.
c  Chronic  exposure. Serious cardio effects such as Raynauds
   disease  in  10/46.
d  Chronic  exposure. Value shown is cancer effect level. Serious
   effects  such as  lung cancer. Standardized mortality ratio of
   303.
e  Chronic  exposure to organic arsenic.
f  Intermediate exposure: Less serious neurological effects such
   as nausea and anorexia.
9  Chronic  exposure. Less serious dermatological effects such as
   hyperpigmentation in 16/40, warts in 2/40.
h  Chronic  exposure. Value shown is cancer effect level. Serious
   effects  such as  lung cancer. Standardized mortality ratio of
   227.
1  Chronic  exposure. Value shown is cancer effect level. Serious
   effects  such as  lung cancer. Standardized mortality ratio of
   206.
j  Chronic  exposure. Serious cardio effects such as Raynauds
   disease.
k  Chronic  exposure. Value shown is cancer effect level. Serious
   effects  such as  lung cancer. Standardized mortality ratio of
   183 .
1  Chronic  exposure. Value shown is cancer effect level. Serious
   effects  such as  lung cancer. Standardized mortality ratio of
   270.
m  Organic  arsenic values are 0.37 ppm and 0.5 mg/m3.
                               2-5

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BARIUM
CAS Number 7440-39-3
Exposure Limit Range
(Mg/m3)
5.20 x 10'1 to 2.50 x 105
APPLICABLE
DEFINITION
NIOSH IDLH7
OSHA PEL TWA7
ACGIH TLV-TWA7'3
SAAPS3 CT
SAAPS3 VA
OSHA PEL TWA7
SAAPS3 NV
SAAPS3 NY
OSHA PEL TWA7
ACGIH TLV-TWA7
EPA AIS7
EPA AIC7
RfC13
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
pig/m3
2.50 x 105
2.00 x 104
(Total Dust)
1.00 x 104
(Total Dust)
1.00 x 104
8.00 x 103
5.00 x 103
(Respirable
Fraction)
1.20 x 103
6.70 x 102
5.00 x 102
(Soluble
Compounds )
5.00 x 102
9.80 x 101
1.00 x 101
5.20 x 10"1
Time
30 min.
8 hr.
8 hr.
8 hr.
24 hr.
8 hr.
8 hr.
1 yr.
8 hr.
8 hr.
8 hr.
8 hr.
Lifetime
Footnotes to Barium:

a   Short-term excursions to 3x above TLV for no more than 30
   min. during an 8-hr workday.
                               2-6

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BENZENE
CAS Number 71-43-2
Exposure Limit Range
(Mg/m3)
1. 0 x 10"1 to 9.8 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1
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BENZENE
CAS Number 71-43-2
Exposure Limit Range
(/xg/m3)
1. 0 x 10"1 to 9.8 x 106
APPLICABLE
DEFINITION
MD SCREENING LEVEL10
ACGIH TLV-TWA1,
SAAPS3 FL
SAAPS3 IN
SAAPS3 SC
SAAPS3 NY
SAAPS3 PA
SAAPS3 AZ
SAAPS3 TX
SAAPS3 AZ
SAAPS3 LA
SAAPS3 FL
MRL8
SAAPS3 OK
SAAPS3 TX
SAAPS3 MA
ODOR THRESHOLD11
RfC3
SAAPS3 AZ, MI
SAAPS3 FL, ID, KS,
NC, VT, WA
CONCENTRATION
FOR 1CT6 RISK4'f
SAAPS3 RI
Conversion Factor:
1 /ig/m3 = 3.08 x 10~" PPM @ 25°C
INHALATION EXPOSURE LIMITS
jug/m3
3.20 x 102
3 .00 x 102
1.60 x 102
1.50 x 102
1.00 x 102
7.20 x 101
5.10 x 101
3 .00 x 101
1.50 x 101
1.20 x 101
7.2
6.5
3 .2
3 .0
1.7
8.80 x 10'1
2 .20 x 10'1
1.40 x 10'1
1.20 x 10'1
1.20 x 10"1
1.00 x ID'1
Time
8 hr.
8 hr.
8 hr.
24 hr.
1 yr .
1 yr.
24 hr.
30 min.
8 hr.
1 yr.
24 hr.
18 wk.
24 hr.
1 yr .
24 hr.
1 min.
Lifetime
1 yr.
1 yr.
70 yr .
1 yr.
2-8

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Footnotes to Benzene:

a  A compound  is considered to be cancer-causing if denoted by
   Ca.
b  Intermediate exposure:  serious systemic effects include
   pancytopenia and histopathology of bone marrow.
c  Chronic exposure:  serious systemic effects include
   pancytopenia.
d  Leukemia cancer effect level.
e  Chronic exposure:  less serious systemic effects include
   anemia, leukemia and increased mean corpuscular volume.
f  Concentration equivalent to a 1CT6 risk exposure.
                               2-9

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BENZO(A)PYRENE
CAS Number 50-32-8
Exposure Limit Range
(Mg/m3)
3 .30 x 10'5 to 2.00 x 102
APPLICABLE
DEFINITION
ACGIH TLV-TWA12, OSHA
PEL TWA2
SAAPS3 AZ
SAAPS3 AZ
SAAPS3 CT, IN
SAAPS3 TX
SAAPS3 TX
SAAPS3 PA
SAAPS3 IN, WA
CONCENTRATION
FOR 1(T6 RISK4'3
SAAPS3 AZ, MA
SAAPS3 KS
SAAPS3 FL, MI, VT
SAAPS3 NC
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
/xg/m3
2.00 x 102
7.90 x 10"1
2.10 x 10"1
1.00 x 10"1
3.00 x 10"2
3 .00 x 10"3
7.00 x 10~4
6.00 x 10"4
5.73 x 10"4
5.70 x 10'4
3.03 x 1Q-4
3 .00 x 10~4
3.30 x 10"5
Time
8 hr.
1 hr.
24 hr.
8 hr.
30 min.
1 yr .
1 yr .
1 yr .
70 yr.
1 yr .
1 yr .
1 yr .
1 yr .
Footnotes to Benzo(a) Pyrene:



a   Concentration  equivalent  to a 10'6 risk exposure
                               2-10

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BENZYL CHLORIDE
CAS Number 100-44-7
Exposure Limit Range
(Mg/m3)
6.40 x 10'3 to 5.26 x 104
APPLICABLE
NIOSH IDLH1
EHS LOG22,
ACGIH TLV1
OSHA PEL TWA1
NIOSH REL1,
NIOSH CEILING56
ODOR THRESHOLD11
RfG13,a
AALG19
Conversion Factor:
1 jig/m3 = 1.90 X 10'4 PPM @ 25° C
INHALATION EXPOSURE LIMITS
/xg/m3
5.26 x 104
5.20 x 103
5.00 x 103
5.00 x 103
2.10 x 102
3 .70 x 10"2Ca
6.40 x 10"3
Time
30 min.
30 min.
18 mo.
(occup. )
15 min.
1 min.
Lifetime
1 yr .
Footnotes to Benzyl Chloride:

a   A compound is considered  to be cancer-causing if denoted by
   Ca.
                              2-11

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BERYLLIUM
CAS Number 440-41-7
Exposure Limit Range
(/*g/m3)
4.10 x 1(T6 to 2.50 x 101
APPLICABLE
DEFINITION
OSHA TLV-STEL2
OSHA CEILING2
LOAEL14'a'b
NOAEL14'C
ACGIH TLV-TWA14, OSHA
PEL TWA14
LOAEL14'd
LOAEL14'6
LOAEL14 ' f
NIOSH REL14
CONCENTRATION
FOR 10"6 RISK4'g
SAAPS3 NV
SAAPS3 AZ
SAAPS3 LA
SAAPS3 FL, SD
SAAPS3 OK, VA
SAAPS3 AZ
SAAPS3 CT
SAAPS3 PA
SAAPS3 SC
SAAPS3 FL
SAAPS3 VT
SAAPS3 MA
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
jtg/m3
2.50 x 101
5.00
4.60
4.60
2.00
1.20
1.20
1.20
5.00 x 10"1
4.20 x 10"1
1.00 x 10"1
6.00 x 10"2
4.00 x 10"2
2.00 x 10"2
2.00 x 10"2
1.60 x 10"2
1.00 x 10"2
1. 00 x 10~2
1. 00 x 10"2
4 .80 x 10"3
1.30 x 10"3
1 . 00 x 10"3
Time
30 min .
15 min.
occupational
2.5 hr.
8 hr.
12.6 yr avg.
4-8 yr.
(occup . )
occupational
10 hr.
70 yr.
8 hr.
1 hr.
1 yr .
8 hr.
24 hr.
24 hr.
8 hr.
1 yr .
24 hr.
24 hr.
1 yr .
24 hr.
2-12

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BERYLLIUM
CAS Number 440-41-7
Exposure Limit Range
(Atg/m3)
4.10 x 10'6 to 2.50 x 101
APPLICABLE
DEFINITION
Rfcl3,h
SAAPS3 AZ
SAAPS3 FL, WA
SAAPS3 KS
SAAPS3 MA, MI
SAAPS3 NC
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
fig/m3
7.50 x 10~4Ca
5.00 x 10"4
4.20 x 10"4
4.17 x 10"4
4 .00 x 10"4
4.10 x 10"6
Time
Lifetime
1 yr .
1 yr.
1 yr.
1 yr.
1 yr.
Footnotes to Beryllium:
a

b

c
d
g
h
Chronic exposure: Serious respiratory effects such as chronic
interstitial pneumonitis.
Chronic exposure: Less serious immunological effects such as
granuloma of the lymph nodes.
Chronic exposure: Hemato system effects.
Chronic exposure: Serious respiratory effects such as
breathing difficulties and scarring of the lung.
Chronic exposure: Serious respiratory effects such as
inflammation and granulomatous lesion of  the lung.
Chronic exposure: Less serious immunological effects such as
increased T-cell activity.
Concentration equivalent to a 10""6  risk exposure.
A compound is considered to be cancer-causing if denoted by
Ca.
                               2-13

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CADMIUM
CAS Number 7440-43-9
Exposure Limit Range
(/Kj/m3)
2.90 x ICT" to 4.00 x 104
APPLICABLE
DEFINITION
NIOSH IDLH1
LOAEL15'a
LOAEL15'b
ACGIH CEILING15,
ACGIH TLV-TWA15
NOAEL15'0
NOAEL15'd
LOAEL15'd
LOAEL15'e
NOAEL15'C
OSHA PEL TWA2
OSHA ACTION LEVEL2
SAAPS3 AZ
SAAPS3 NV
SAAPS3 VA
SAAPS3 FL
SAAPS3 OK
SAAPS3 CT, SD
SAAPS3 MT
SAAPS3 SC
Conversion Factor:
Not Applicable'
INHALATION EXPOSURE LIMITS
ptg/m3
4.00 x 104
1.00 x 103
1.30 x 102
5.00 x 101
3 .30 x 101
2.70 X 101
2.60 x 101
2.30 x 101
1.70 x 101
5.00
2.50
1.70
1.00
8.30 x 10"1
5.00 x 10"1
5.00 x 10"1
4.00 x 10"1
3 .90 x 10"1
2.50 x 10"1
Time
30 tnin.
30 yr; 5 dy/wk; 8
hr/dy.
18 mo; 7 dy/wk; 23
hr/dy.
8 hr.
30 yr; 5 dy/wk; 8
hr/dy .
30 yr; 5 dy/wk; 8
hr/dy.
30 yr; 5 dy/wk; 8
hr/dy .
30 yr; 5 dy/wk; 8
hr/dy.
30 yr; 5 dy/wk; 8
hr/dy.
15 tnin.
8 hr.
1 hr.
8 hr.
24 hr.
8 hr.
24 hr.
8 hr.
24 hr.
24 hr.
2-14

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CADMIUM
CAS Number 7440-43-9
Exposure Limit Range
(Mg/m3)
2 . 90 x 10~" to 4 . 00 x 10"
APPLICABLE
DEFINITION
SAAPS3 NY
SAAPS3 FL
SAAPS3 PA
SAAPS3 AZ
SAAPS3 TX
SAAPS3 MT
SAAPS3 LA
SAAPS3 TX
SAAPS3 MI
SAAPS3 NC
SAAPS3 MA
SAAPS3 MA
RfC13,g
SAAPS3 RI
SAAPS3 VT
CONCENTRATION
FOR 1CT6 RISK4'f
SAAPS3 FL, IL, WA
SAAPS3 KS
SAAPS3 AZ
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
Mg/m3
1.67 x 10"1
1.20 x 10"1
1.20 x 10'1
1.10 x 10"1
1.00 x 10"1
7.00 x 10'2
6.00 x 10~2
1.00 x 10"2
5.60 x 10'3
5.50 x 10"3
3 . 00 x 10"3
1.00 x 10"3
9.90 x 10"4 Ca
6.00 x 10~4
5 .70 x 10'4
5.60 x 10'4
5.60 x 10'4
5.56 x 10"4
2.90 x 10'4
Time
1 yr .
24 hr.
1 yr .
24 hr.
1 yr .
1 yr .
1 yr .
30 min.
1 yr .
1 yr .
24 hr.
1 yr .
Lifetime
1 yr .
1 yr .
70 yr .
1 yr .
1 yr .
1 yr .
2-15

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Footnotes to Cadmium:

a   Chronic  exposure: Less serious renal effects such as 77  %
   incidence of proteinuria.
b   Chronic  exposure: Less serious respiratory effects such  as
   bronchio-alveolar hyperplasia.
c   Chronic  exposure.
d   Chronic  exposure: Less serious renal effects such as 21  %
   incidence of proteinuria.
e   Chronic  exposure: Less serious renal effects such as 9 %
   incidence of proteinuria.
f   Concentration  equivalent to a 10~6  risk exposure.
9   A compound  is  considered to be cancer-causing if denoted by
   Ca.
                               2-16

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CARBON DISULFIDE
CAS Number 75-15-0
Exposure Limit Range
(Atg/m3)
1.50 x 102 to 1.58 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1
SAAPS3 VA
OSHA MAXIMUM1
SAAPS3 NC
EEGL9
SAAPS3 SC
SAAPS3 NY
OSHA CEILING1
OSHA CEILING16
OSHA PEL TWA1
SAAPS3 CT
NIOSH REL STEL16
OSHA PEL TWA16
RfC13
OSHA PEL STEL16
NIOSH TWA16
SAAPS NV16
ODOR THRESHOLD11
SAAPS3 ND
SAAPS3 FL
EHS LOG22
AALG19
Conversion Factor:
1 fig/m3 = 3.16 x 10"4 ppm @ 25° C
INHALATION EXPOSURE LIMITS
Mg/m3
1.58 x 106
5.00 x 105
3.16 x 105
1.86 x 105
1.80 x 10s
1.50 x 105
1.00 x 105
9.48 x 104
7.90 x 104
6.32 x 104
6.00 x 104
3 .00 x 104
1.20 x 104
1.00 x 104
3.60 x 103
3 .00 x 103
7.14 x 102
6.64 x 102
3 .00 x 102
3 .00 x 102
1.56 x 102
1.50 x 102
Time
30 tnin.
24 hr.
5 min. in any
4 hr.
24 hr.
24 hr.
24 hr.
1 yr .
15 min.
15 min.
8 hr.
8 hr.
15 min.
8 hr.
Lifetime
8 hr.
10 hr.
8 hr.
1 min .
8 hr.
8 hr.
30 min.
24 hr.
2-17

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CARBON TETRACHLORIDE
CAS Number 56-23-5
Exposure Limit Range
(M9/m3)
3.00 x 1CT2 to 4.53 x 106
APPLICABLE
DEFINITION
ODOR THRESHOLD11
NIOSH IDLH1'3
LOAEL17'b'c'd
LOAEL17'6
NOAEL17'f
LOAEL17'9
NOAEL17'h
LOAEL17 •i
LOAEL17 'j
OSHA CEILING2
OSHA PEL TWA2
ACGIH TLV-TWA1
NIOSH REL1
OSHA MAXIMUM2
SAAPS3 NV
SAAPS3 AZ
MD SCREENING LEVEL10
SAAPS3 VA
SAAPS3 CT, FL
CAPCOA18
SAAPS3 IN
Conversion Factor:
1 /^g/rn3 = 1.56 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
4.53 x 106
1.92 x 106Ca
1.60 x 10s
1.28 x 106
6.39 x 10s
5.11 x 105
5.11 x 105
2.56 x 105
2.56 x 105
1.60 x 10s
6.40 x 104
3 .00 x 104
1.26 x 104
1.28 x 133
7.14 x 102
4 .90 x 102
3 .10 x 102
3 .10 x 102
3 .00 x 102
1.90 x 102
1.55 x 102
Time
1 min .
30 min.
15 min.
Up to 3 hr.
70-180 min.
3 mo+; 8hr/dy; 5
dy/wk
8 hr/dy; 5
dy/wk .
8 hr/dy; 5
dy/wk .
2 mo; 8 hr/dy; 5
dy/wk .
15 min.
8 hr.
8 hr.
1 hr.
5 min. in any
and hr.
8 hr.
1 hr.
8 hr.
24 hr.
8 hr.
1 hr.
8 hr.
2-18

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CARBON TETRACHLORIDE
CAS Number 56-23-5
Exposure Limit Range
(Mg/m3)
3.00 x 10"2 to 4.53 x 106
APPLICABLE
DEFINITION
SAAPS3 SC
SAAPS3 TX
SAAPS3 OK
SAAPS3 NY
SAAPS3 MA
SAAPS3 PA
MRL17
SAAPS3 FL
SAAPS3 AZ
SAAPS3 TX
SAAPS3 LA, NC
RfG13,a
CONCENTRATION
FOR 1CT6 RISK4'k
SAAPS3 FL, IN, KS,
MA, VT, WA
AALG19
SAAPS3 MI
SAAPS3 AZ
SAAPS3 RI
Conversion Factor:
1 ptg/m3 = 1.56 x 10"* PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
1.50 x 102
1.26 x 102
1.25 x 102
1.00 x 102
8.55 x 101
7.20 x 101
6.40 x 101
3.00 x 101
1.30 x 101
1.30 x 101
6.70
1.20 x lO^Ca
6.70 x 10"2
6.70 x 10'2
5.30 x ID"2
4.00 x 10"2
3.60 x 10"2
3 .00 x 10"2
Time
24 hr.
30 min.
24 hr.
1 yr.
24 hr.
1 yr.
18 wk.
24 hr.
24 hr.
1 yr .
1 yr .
Lifetime
70 yr.
1 yr .
1 yr .
1 yr .
1 yr .
1 yr .
2-19

-------
Footnotes to Carbon Tetrachloride:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
b   Acute exposure:  serious effects leading to death.
c   Acute exposure:  serious systemic effects including hepatic
   control necrosis and renal oliguria nephrosis.
d   Acute exposure:  less serious neurological effects such as
   dizziness.
e   Acute exposure:  less serious systemic effects including
   renal proteinuria, increased hepatic serum bilirubin, and
   decreased hepatic serum iron.
f   Acute exposure:  Neurological effects.
9   Intermediate exposure:  serious neurological effects such as
   narcosis.
h   Intermediate exposure:  Systemic hepatic effects.
1   Intermediate exposure:  less serious neurological effects
   such as depression.
j   Intermediate exposure:  less serious systemic gastro effects
   such as nausea and dyspepsia.
k   Concentration equivalent to a 10"6 risk exposure.
                               2-20

-------
CHLORDANE
CAS Number 57-74-9
Exposure Limit Range
(Mg/m3)
2.69 x 10"3 to 5.00 x 105
APPLICABLE
DEFINITION
NIOSH IDLH1'3
ACGIH STEL20
ACGIH TLV-TWA20, OSHA
PEL2
SAAPS3 CT
SAAPS3 AZ
SAAPS3 NV
SAAPS3 WI
SAAPS3 VA
SAAPS3 FL
SAAPS3 OK
SAAPS3 TX
SAAPS3 SC
SAAPS3 NY
SAAPS3 FL
SAAPS3 AZ
MRL20
SAAPS3 TX
SAAPS3 PA
SAAPS3 MA
EHS LOC22
SAAPS3 MA
RfG13,a
SAAPS3 AZ
Conversion Factor:
1 fig/m3 = 5.90 x 10"5 PPM @ 25°C
INHALATION EXPOSURE LIMITS
^g/m3
5.00 x 105 Ca
2.00 x 103
5.00 x 102
2 .50 x 101
1.70 x 101
1.20 x 101
1.20 x 101
8.30
5.00
5.00
5.00
2.50
1.70
1.20
1.10
5.00 x 10'1
5.00 x 10'1
3 .50 x 10"1
1.40 x 10"1
5.00 x 10"2
3.00 x 10"2
4.90 x 10'3 Ca
2.90 x 10"3
Time
30 min.
15 min.
8 hr.
8 hr.
1 hr.
8 hr.
24 hr.
24 hr.
8 hr.
24 hr.
30 min.
24 hr.
1 yr .
24 hr.
24 hr.
18 wk.
1 yr .
1 yr .
24 hr.
30 min.
1 yr .
Lifetime
1 yr .
2-21

-------
CHLORDANE
CAS Number 57-74-9
Exposure Limit Range
(/xg/m3)
2.69 x 1(T3 to 5.00 x 105
APPLICABLE
DEFINITION
SAAPS3 FL, KS, WA
CONCENTRATION
FOR 1(T6 RISK4'b
Conversion Factor:
1 /ig/m3 = 5.90 x 10"5 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
2.70 x 1CT3
2.69 x 10"3
Time
1 yr .
70 yr .
Footnotes to Chlordane:

a   A compound  is  considered to be cancer-causing  if denoted  by
   Ca.
b   Concentration  equivalent to a 10"6  risk  exposure.
                               2-22

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CHLOROBENZENE
CAS Number 108-90-7
Exposure Limit Range
(Aig/m3)
6.30 to 1.12 x 107
APPLICABLE
DEFINITION
NIOSH IDLH1
OSHA PEL TWA21
ACGIH TLV-TWA1
SAAPS3 OK
SAAPS3 WI
SAAPS3 NV
SAAPS3 CT
SAAPS3 VA
SAAPS3 FL
SAAPS3 AZ
SAAPS3 NC
SAAPS3 NY
SAAPS3 WA
SAAPS3 LA
ODOR THRESHOLD11
SAAPS3 VT
SAAPS3 ND
SAAPS3 TX
AALG19
SAAPS3 FL
SAAPS3 MA
SAAPS3 TX
RfC13
SAAPS3 MA
Conversion Factor:
1 M9/m3 = 2.14 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
1.12 x 107
3 .50 x 105
4 .60 x 104
3.45 x 104
8.40 x 103
8.33 x 103
7.00 x 103
5.80 x 103
3.50 x 103
2 .56 x 103
2.20 x 103
1.17 x 103
1.17 x 103
1.10 x 103
9.80 x 102
8.33 x 102
4.60 x 102
4 .60 x 102
2.60 x 102
1.10 x 102
9.30 x 101
4 .60 x 101
2 . 10 x 101
6.30
Time
30 min.
8 hr.
8 hr.
24 hr.
24 hr.
8 hr.
8 hr.
24 hr.
8 hr.
24 hr.
24 hr.
1 yr .
24 hr.
8 hr.
1 min.
1 yr .
8 hr.
30 min.
24 hr.
24 hr.
24 hr.
1 yr .
Lifetime
1 yr .
2-23

-------
CHLOROFORM
CAS Number 67-66-3
Exposure Limit Range
(Mg/m3)
2.20 x 1(T2 to 4.96 x 107
APPLICABLE
DEFINITION
LOAEL23'3
LOAEL23'b
LOAEL23 'c
LOAEL23 'd
LOAEL23 'b
LOAEL23'6
NIOSH IDLH1^
LOAEL23'9
ODOR THRESHOLD11
CEGL9
EEGL9
EHS LOC22
LOAEL23 'h
OSHA CEILING2
LOAEL23 'i'j
LOAEL23 'k'1
ACGIH TLV-TWA1
LOAEL23'm
ACGIH STEL1, NIOSH REL1
SAAPS3 NV
SAAPS3 FL
Conversion Factor:
1 ng/m3 = 2.02 x 1CT4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
^tg/m3
4 .96 x 107
4.96 x 107
3 .97 x 107
3 .97 x 107
3 .97 x 107
7.44 x 10s
4.96 x 10s Ca
4 . 56 x 10s
3 .30 x 10s
4 .96 x 105
4 .96 x 105
4 .88 x 105
3 .82 x 105
2.40 x 105
1.09 x 105
6.90 x 104
4 .90 x 104
1.00 x 104
9.78 x 103
1.19 x 103
5.00 x 102
Time
1 day
1 dy; 0.5-2 hr/dy.
113 min/dy.
1 day
1 dy; 113 min/dy.
1 day
30 min.
1 dy/ 3 min/dy.
1 min .
90 days
24 hr.
30 min.
3-10 yr.
(occup . )
15 min.
10-24 mo .
(occup . )
1-6 mo .
(occup . )
8 hr.
1-4 yr.
(occup . )
1 hr.
8 hr.
8 hr.
2-24

-------
CHLOROFORM
CAS Number 67-66-3
Exposure Limit Range
(/^g/m3)
2 .20 x 1CT2 to 4 . 96 x 107
APPLICABLE
DEFINITION
MD SCREENING LEVEL10
SAAPS3 VA
SAAPS3 CT
SAAPS3 SC
SAAPS3 NY
SAAPS3 PA
SAAPS3 TX
SAAPS3 OK
SAAPS3 AZ
SAAPS3 IN
SAAPS3 FL
SAAPS3 AZ
SAAPS3 MA
SAAPS3 TX
SAAPS3 LA, NC
SAAPS3 MI
RfG13,f
SAAPS3 KS
CONCENTRATION
FOR 1CT6 RISK4'"
SAAPS3 AZ, FL, IN, MA,
VT, WA
SAAPS3 MA, RI
AALG19
Conversion Factor:
1 /jg/m3 = 2.02 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
ptg/m3
4 .90 x 102
4 . 90 x 102
2 .50 x 102
2 .50 x 102
1.67 x 102
1.20 x 102
9.80 x 101
9.70 x 101
6.00 x 101
4 .90 x 101
2 .40 x 101
1.60 x 101
1.33 x 101
1.00 x 101
4 .30
4.00 x 10'1
7.80 X 10"2 Ca
4 .40 x 10'2
4.30 x 10~2
4.30 x 10"2
4.00 x 10"2
2.20 x 10~2
Time
8 hr.
24 hr.
8 hr.
24 hr.
1 yr .
1 yr .
30 min.
24 hr.
1 hr.
8 hr.
24 hr.
24 hr.
24 hr.
1 yr .
1 yr .
1 yr .
Lifetime
1 yr .
70 yr .
1 yr .
1 yr .
1 yr .
2-25

-------
Footnotes to Chloroform:

a   Acute exposure:  less serious systemic effects such as
   changes in respiratory rate.
b   Acute exposure:  Serious neurological effects such as
   narcosis.
0   Acute exposure:  less serious systemic effects such as
   vomiting and increased prothrombin time.
d   Acute exposure:  serious systemic effects such as arrhythmia
   and increased hepatic sulfobromophthalein retention.
e   Acute exposure:  Serious neurological effects such as light
   anesthesia.
f   A compound is considered to be cancer-causing if denoted by
   Ca.
9   Acute exposure:  Less serious neurological effects such as
   dizziness and vertigo.
h   Chronic exposure:  Less serious effects such as nausea,
   exhaustion, irritability, depression, and lack of
   concentration.
1   Intermediate exposure:  Less serious systemic effects such as
   nausea.
j   Intermediate exposure:  Less serious neurological effects
   such as exhaustion.
k   Intermediate exposure:  Serious systemic effects such as
   toxic hepatitis.
1   Intermediate exposure:  Less serious systemic effects such as
   vomiting.
m   Chronic exposure:  Serious systemic effects such as
   hepatitis.
n   Concentration equivalent to a 10"6 risk  exposure.
                               2-26

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CHROMIUM (VI)
CAS Number 18540-29-9
Exposure Limit Range
(Mg/m3)
8.30 x 10"5 to 1.0 x 103
APPLICABLE
DEFINITION
OSHA PEL TWA2
NIOSH REL1'3
LOAEL24'b
LOAEL24'b
LOAEL24 'c
LOAEL24'b
LOAEL24 'd
LOAEL24 'b
LOAEL24'6
ACGIH TLV-TWA24
LOAEL24 'f
LOAEL24 'g
LOAEL24 'h
LOAEL24'1
LOAEL24 ':'k
NIOSH REL1'3
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
//g/m3
1. 00 x 103
5. 00 x 102
5. 00 x 102
5 . 00 x 102
4.14 x 102
2.50 x 102
1. 00 X 102
1.00 x 102
9. 00 x 101
5.00 X 101
5 . 00 x 101
5.00
4.00
4 .00
2.00
1.00
Time
8 hr.
8 hr.
4-19 yr . (occup . )
j> 10 yr . (occup . )
2 .3-12 .6 yr.
(6.9 yr avg)
(occup . )
1-7 yr . (occup . )
< 1 yr . (occup. )
1 mo./29 yr.
(occup . )
0.5-12 mo.
(6 mo . avg . )
(occup . )
8 hr.
7 yr./avg.
(occup . )
11-19 yr . (occup.)
3-16 yr.
(7.5 yr . /avg. )
(occup . )
0.1-26 yr.
(5.3 yr . avg . )
(occup . )
0 .2-23 . 6 yr.
(2.5 yr./avg. )
(occup . )
10 hr.
2-27

-------
CHROMIUM (VI)
CAS Number 18540-29-9
Exposure Limit Range
(/zg/m3)
8.30 x 1CT5 to 1.0 x 103
APPLICABLE
DEFINITION
NOAEL24'1'™
SAAPS3 TX
SAAPS3 AZ
SAAPS3 AZ
SAAPS3 TX
SAAPS3 MA
RfC13
SAAPS3 ND
SAAPS3 MA
SAAPS3 IL
CONCENTRATION
FOR 1CT6 RISK4'"
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
jJLg/m3
1. 00
2.50 x 10'1
1.10 x 10'1
2 . 90 x 10'2
2 . 50 x 10'2
3 .00 x 10"3
2.10 x 10'3
5.00 x 10"4
1.00 x 10'4
8.30 x 10'5
8 .30 x 10"5
Time
0.2-23.6 yr.
(2.5 yr./avg. )
(occup . )
30 min .
1 hr.
24 hr.
1 yr.
24 hr.
Lifetime
8 hr.
1 yr.
1 yr .
70 yr.
2-28

-------
Footnotes to Chromium:

a  The  ranges  reflect different Chromium valences.   The NIOSH
   REL  (10-hour TWA)  is  0.001 mg Cr(VI)/m3 for all hexavalent
   chromium  compounds.   The NIOSH REL  (8-hour TWA)  is  0.5  mg
   Cr/m3 for chromium metal and chromium(II)  and chromium(III)
   compounds.
b  Intermediate exposure:  Serious effects.  Lung  cancer effect
   level.
c  Chronic exposure:  Less  serious respiratory and gastro effects
   such as nasal  septum  perforation, chronic tonsillitis,
   chronic pharyngitis,  and atrophy of larynx.
d  Intermediate exposure:  Less serious respiratory  effects such
   as epistaxis,  rhinorrhea, nasal ulceration and perforation.
e  Intermediate exposure:  Less serious respiratory  effects such
   as epistaxis,  rhinorrhea, and ulceration of the  nasal septum.
f  Chronic exposure:  Less  serious renal effects such as an
   increase  in retinal binding protein and tubular  antigens  in
   urine.
9  Chronic exposure:  Less  serious gastro effects  such  as gastric
   mucosa irritation  and ulcers.
h  Chronic exposure:  Less  serious respiratory and gastro effects
   such as epistaxis, rhinorrhea, nasal ulceration  and
   perforation, stomach  pains and cramps, and ulcers.
1  Chronic exposure:  Less  serious renal effects such as
   increased urinary  B2-macroglobulin.
j  Intermediate exposure:  Less serious respiratory  effects such
   as nasal mucosa atrophy and mild decreased lung  function.
k  Chronic exposure:  Less  serious respiratory effects  such as
   nasal mucosa atrophy  and mild decreased lung function.
1  Intermediate exposure:  respiratory effects.
m  Chronic exposure:  respiratory effects.
n  Concentration  equivalent to a 10'6 risk exposure.
                              2-29

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  2,4-DICHLOROPHENOXYACETIC ACID
                       (2,4-D)
                   CAS Number 94-75-7
  Exposure Limit Range
   3 .70 x 101 to 1.00 x 105
     Conversion Factor:

       NOT APPLICABLE
                           INHALATION EXPOSURE LIMITS
      APPLICABLE
      DEFINITION
                   Time
NIOSH IDLH1
1.00 x 105
30 min.
NIOSH/OSHA TWA1
1.00 x 10"
 10 hr.
ODOR THRESHOLD
            11
3 .13 x 10-
 1 min.
RfC
   13
3 .70 x 101
Lifetime
                        2-30

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DDT
CAS Number 50-29-3
Exposure Limit Range
(/zg/m3)
3 . 00 x 10"3 to 1.00 x 103
APPLICABLE
DEFINITION
ACGIH TWA25,
OSHA PEL TWA2
NIOSH REL TWA1
SAAPS3 AZ
SAAPS3 NV
SAAPS3 VA
SAAPS3 FL, ND
SAAPS3 AZ
SAAPS3 CT
SAAPS3 FL
SAAPS3 PA
SAAPS3 TX
SAAPS3 TX, WA
RfC13
SAAPS3 AZ
CONCENTRAT I ON
FOR 1CT6 RISK4'3
SAAPS3 KS
SAAPS3 FL
SAAPS3 MI
Conversion Factor:
1 /xg/m3 = 6.90 x 10'5 PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
1.00 x 103
5.00 x 102
2.50 x 101
2 .40 x 101
1.70 x 101
1.00 x 101
5.10
5.00
2.40
1.80
1.00
1.00 x 10"1
1.80 x 10"2
1.40 x 10'2
1.03 x 10'2
1.03 x 10"2
1.00 x 10'2
3 .00 x 10"3
Time
8 hr.
10 hr.
1 hr.
8 hr.
24 hr.
8 hr.
24 hr.
8 hr.
24 hr.
1 yr .
30 min.
1 yr .
Lifetime
1 yr .
70 yr .
1 yr .
1 yr .
1 yr .
Footnotes to DDT:




a   Concentration equivalent  to  a  10"6 risk exposure.
                               2-31

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1 ,2-DIBROMOETHANE
CAS Number 106-93-4
Exposure Limit Range
(Mg/m3)
4 .54 x 1CT3 to 3 . 12 x 106
APPLICABLE
DEFINITION
NIOSH IDLH TWAx'a
SAAPS3 CT
SAAPS3 IN
OSHA CEILING
OSHA PEL TWA26
MD Screening Level10
OSHA STEL26
SAAPS3 VA
NIOSH CEILING26
NIOSH REL TWA26'a
SAAPS3 PA (Philadelphia)
SAAPS3 NC
RfC13
CONCENTRATION FOR 10"6
RISK4'b
Conversion Factor:
1 ^g/m3 = 1-28 x 10"" ppm @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
3.12 x 106 Ca
7.55 x 105
7.20 x 105
2.34 x 105
1.56 x 10s
4.32 x 103
3.91 x 103
1.50 x 103
1.00 x 103
3 .51 x 102 Ca
2 .47
1.90
8.10 x 10"3
4.54 x 10"3
Time
30 min.
8 hr.
8 hr.
15 min.
8 hr.
8 hr.
15 min.
24 hr.
15 min.
8 hr.
1 yr.
24 hr.
Lifetime
70 yr .
Footnotes to 1,2 Dibromoethane:

a   A compound  is considered  to be cancer-causing if denoted  by
   Ca.
b   Concentration equivalent  to a 10"6  risk  exposure.
                               2-32

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1 ,4-DICHLOROBENZENE
CAS Number 106-46-7
Exposure Limit Range
(/ig/m3)
1. 80 x 10"1 x 6. 01 x 106
APPLICABLE
DEFINITION
NIOSH IDLH27'a
ACGIH STEL27
LOAEL27'b
ACGIH TLV-TWA27
OSHA PEL TWA27
SAAPS3 NC
SAAPS3 WI
SAAPS3 LA, NV
SAAPS3 CT
SAAPS3 OK
SAAPS3 VA
SAAPS3 ND
SAAPS3 ND
SAAPS3 FL
SAAPS3 SC
SAAPS3 IN
SAAPS3 WA
MRL22
SAAPS3 FL
SAAPS3 TX
SAAPS3 TX
SAAPS3 AZ
SAAPS3 MA
Conversion Factor:
1 /zg/m3 = 1.66 x 10~" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
6.01 x 106 Ca
6.61 x 105
4 . 81 x 105
4.51 x 105
4.50 x 105
6.60 x 104
1.08 x 104
1.07 x 104
9.00 x 103
9.00 x 103
7.50 x 103
6.61 x 103
4.51 x 103
4 .50 x 103
4.50 x 103
2.25 x 103
1.50 x 103
1.20 x 103
1.08 x 103
1.08 x 103
4.50 x 102
2 .50 x 102
1.23 x 102
Time
30 min.
15 min.
5 yr/avg.
(occup. )
8 hr.
8 hr.
15 min.
24 hr.
8 hr.
8 hr.
24 hr.
24 hr.
1 hr.
8 hr.
8 hr.
24 hr.
8 hr.
24 hr.
18 wk.
24 hr.
30 min.
1 yr .
1 hr .
24 hr .
2-33

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1 ,4-DICHLOROBENZENE
CAS Number 106-46-7
Exposure Limit Range
(M9/m3)
1. 80 x ICT1 x 6.01 x 106
APPLICABLE
DEFINITION
SAAPS3 AZ
RfC13
SAAPS3 FL
SAAPS3 AZ, MA
Conversion Factor:
1 /ig/m3 = 1.66 x 10'4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
6.60 x 101
3.70 x 101
7.00 x 10"1
1.80 x 10"1
Time
24 hr.
Lifetime
1 yr.
1 yr .
Footnotes to 1,4-Dichlorobenzene:

a  A compound  is considered to be cancer-causing if denoted by
   Ca.
b  Chronic exposure:  Less serious systemic effects such as eye
   and nose irritation.
                               2-34

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           M-DICHLOROBENZENE
                  CAS Number 541-73-1
 Exposure Limit Range
       (jug/m3)
 3.20 x 102 to 3.20 x 102
     Conversion Factor:

      NOT APPLICABLE
                         INHALATION EXPOSURE LIMITS
     APPLICABLE
     DEFINITION
                   Time
RfC
  113
3.20 x
Lifetime
                        2-35

-------
O-DICHLOROBENZENE
CAS Number 95-50-1
Exposure Limit Range
(M9/m3)
1.50 x 102 to 6.11 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1
NIOSH CEILING1
NIOSH REL CEILING56
RfC13
Conversion Factor:
1 /ig/m3 = 1.64 x 10-4 ppm @ 25°C
INHALATION EXPOSURE LIMITS
/ig/m3
6.11 x 106
3 .00 x 105
3.00 x 105
1.50 x 102
Time
30 min .
15 min.
10 hr.
Lifetime
2-36

-------
1 , 1-DICHLOROETHANE
CAS Number 75-34-3
Exposure Limit Range
(Mg/m3)
19.3 to 1.65 x 107
APPLICABLE
DEFINITION
NIOSH IDLH28,
NIOSH OSHA IDLH1
ACGIH STEL28
ACGIH TLV TWA28
NIOSH OSHA TWA1
NIOSH REL TWA28
OSHA PEL TWA28
SAAPS3 VA
SAAPS3 ND
SAAPS3 CT
RfC13
SAAPS3 NV
Conversion Factor:
1 ^ig/rn3 = 2.43 x 10~4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/ig/m3
1.65 x 107
1.01 x 106
8.10 x 10s
4.12 x 105
4.12 x 105
4.00 x 105
1.35 x 104
8.10 X 103
8.00 x 103
5.20 x 102
19.3
Time
30 min.
15 min.
8 hr.
30 min.
10 hr.
8 hr.
24 hr.
24 hr.
8 hr.
Lifetime
8 hr.
2-37

-------
1 ,2-DICHLOROETHANE
CAS Number 107-06-2
Exposure Limit Range
(/ig/m3)
3.00 x 10"2 to 4.04 x 106
APPLICABLE
DEFINITION
NIOSH IDLH29'a
OSHA MAXIMUM2
OSHA CEILING2
OSHA PEL TWA2
ACGIH TLV-TWA29
ODOR THRESHOLD11
NIOSH REL29
NIOSH CEILING29
SAAPS3 NV
SAAPS3 VA
MD SCREENING LEVEL10,
SAAPS3 ND
SAAPS3 TX
SAAPS3 IN
SAAPS3 SC
SAAPS3 PA
SAAPS3 AZ
SAAPS3 FL
SAAPS3 OK
SAAPS3 CT
SAAPS3 AZ
SAAPS3 MA
SAAPS3 FL
SAAPS3 TX
Conversion Factor:
1 /^g/m3 = 2.47 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/ig/m3
4.04 x 10s Ca
8.10 x 10s
4.00 x 10s
2.00 x 105
4.00 x 104
2.50 x 104
4.00 x 103
4.00 x 103
9.52 x 102
6.70 x 102
4.00 x 102
4.00 x 102
2.00 x 102
2.00 x 102
1.48 x 102
5.30 x 101
4 .00 x 101
4 .00 x 101
2. 00 x 101
1.40 x 101
1.10 x 101
9 .60
4 .00
Time
30 min.
5 min. in
any 3 hr.
15 min.
8 hr.
8 hr.
1 min .
1 hr.
15 min.
8 hr.
24 hr.
8 hr.
30 min.
8 hr.
24 hr.
1 yr .
1 hr.
8 hr.
24 hr.
8 hr.
24 hr.
24 hr .
24 hr.
1 yr.

-------
1 ,2-DICHLOROETHANE
CAS Number 107-06-2
Exposure Limit Range
(/xg/m3)
3 . 00 x 10'2 to 4 . 04 x 106
APPLICABLE
DEFINITION
SAAPS3
SAAPS3
SAAPS3
SAAPS3
SAAPS3
LA
NC
WA
NY
MI
RfC13
SAAPS3
SAAPS3
MA, RI
KS, IL
CONCENTRATION
FOR 10~6 RISK4'b
SAAPS3
VT
AZ, FL, IN, MA,
AALG19
Conversion Factor:
1 /ig/m3 = 2.47 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
3 .85
3 .80
4.00 x 10"1
2.00 x 10'1
9.00 x 10"2
6.90 x 10'2
4.00 x 10~2
3.85 x 10'2
3 .80 x 10'2
3.80 x 10'2
3 .00 x 10'2
Time
1 yr .
1 yr.
1 yr.
1 yr .
1 yr.
Lifetime
1 yr .
1 yr .
70 yr.
1 yr .
1 yr
Footnotes to 1,2-Dichloroethane:

a   A compound  is  considered to be cancer-causing  if denoted  by
   Ca.
b   Concentration  equivalent to a 10~6  risk  exposure.
                               2-39

-------
1 , 1-DICHLOROETHENE
CAS Number 540-59-0
Exposure Limit Range
(Mg/m3)
2.00 x 1CT2 x 7. 90 x 105
APPLICABLE
DEFINITION
OSHA PEL TWA2
SAAPS3 OK
ACGIH STEL30
SAAPS3 VT
ACGIH TLV-TWA30
SAAPS3 WI
SAAPS3 NV
SAAPS3 CT
SAAPS3 VA
SAAPS3 ND
SAAPS3 TX
SAAPS3 FL
SAAPS3 WA
SAAPS3 TX
SAAPS3 FL
SAAPS3 MA
SAAPS3 MA
CONCENTRATION
FOR 10~6 RISK4'a
Conversion Factor:
1 /ig/m3 = 2.53 x 1CT4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/Ltg/m3
7.90 x 105
7.93 x 104
7.90 x 104
7.90 x 104
1.90 x 10*
1.89 x 104
1.88 x 104
1.58 x 104
1.30 x 104
7.93 x 103
7.93 x 103
2.90 x 103
2.63 x 103
7. 90 x 102
6 .96 x 102
2.16 x 102
1.08 x 102
2.00 x 10"2
Time
8 hr.
24 hr.
15 min.
8 hr.
8 hr.
24 hr.
8 hr.
8 hr.
24 hr.
8 hr.
30 min.
8 hr.
24 hr.
1 yr .
24 hr.
24 hr.
1 yr .
70 yr .
Footnotes to 1,1-




a   Concentration
Dichloroethene:




equivalent to a 10"6  risk  exposure.
                               2-40

-------
DICHLOROETHYL ETHER
CAS Number 111-44-4
Exposure Limit Range
(Mg/m3)
5.40 x 1CT3 to 5.94 x 105
APPLICABLE
DEFINITION
NIOSH IDLH1'3
SAAPS3 VA
SAAPS3 KS
OSHA CEILING32
ACGIH STEL32
NIOSH TWA1'*
ACGIH TLV-TWA
SAAPS3 PA (Philadelphia)
SAAPS3 NV
RfC13
Conversion Factor:
1 /ig/m3 = 1.68 x 10"" ppm @ 25° C
INHALATION EXPOSURE LIMITS
/j.g/m3
5.94 x 105 Ca
5.00 x 105
7.14 x 104
9.00 x 104
6.00 x 104
3 .00 x 104 Ca
3.00 x 104
7.13 x 102
7.07 x 102
5.40 x 10~3
Time
30 min.
24 hr.
1 yr.
8 hr.
15 min.
10 hr.
8 hr.
1 yr .
8 hr.
Lifetime
Footnotes to Dichloroethyl Ether:
a  A compound is considered to be cancer-causing if denoted by
   Ca.
                              2-41

-------
C-l ,2-DICHLOROETHYLENE
CAS Number 540-59-0
Exposure Limit Range
(/xg/m3)
3.30 x 101 to 4 .03 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1
ACGIH TLV-TWA33, OSHA PEL
TWA33
NIOSH/OSHA TWA1
SAAPS3 AZ
SAAPS3 TX
SAAPS3 AZ
ODOR THRESHOLD11
SAAPS3 TX
RfC13
Conversion Factor:
1 /xg/m3 = 2.48 x 10'4 PPM @ 25° C
INHALATION EXPOSURE LIMITS
ptg/m3
4 .03 x 106
7.93 x 10s
7.90 x 105
2.38 x 104
7. 90 x 103
6.30 x 103
4.30 x 103
7.90 x 102
3 .30 x 101
Time
30 min.
8 hr.
10 hr.
1 hr.
30 min.
24 hr.
24 hr.
1 yr .
Lifetime
2-42

-------
DICHLOROMETHANE
CAS Number 75-09-2
Exposure Limit Range
(Mg/m3)
LFC to 1.77 x 107
APPLICABLE
DEFINITION
NIOSH IDLH34'a
OSHA MAX PEAK34
OSHA CEILING34
CAPCOA18
OSHA TWA34'a
ACGIH TLV TWA34'a
ACGIH IDLH A2x'b
SAAPS3 ND
SAAPS3 ND
SAAPS3 NY
SAAPS3 NC
SAAPS3 KS
SAAPS3 NV
SAAPS3 MA
SAAPS3 RI
AALG19
SAAPS3 VT
SAAPS3 SC
SAAPS3 IN
SAAPS3 PA (Philadelphia)
SAAPS3 CT
SAAPS3 VA
SAAPS3 SD
Conversion Factor:
1 /zg/m3 = 2.83 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
H-g/m3
1.77 x 107 Ca
7.06 X 106
3 .53 x 106
3 .50 x 106
1.77 x 106 Ca
1.77 x 105 Ca
1.77 x 105
1.70 x 103
3 .50 x 103
27.0
2.40 x 101
21
8 .3
2 .4
2.00 x 10'1
1.20 x 10"1
2.50 X 10'1
8.75 x 10"3
8.70 x 10"3
8.40 x 10"3
7.00 x 10"3
5.80 x 10'3
3 .50 x 10"3
Time
30 min.
5 min./ 2 hr .
	
1 hr.
8 hr.
8 hr.
	
1 hr.
8 hr.
1 yr .
1 yr .
1 yr.
8 hr.
24 hr.
1 yr .
1 yr.
1 yr.
24 hr.
8 hr.
1 yr.
8 hr.
24 hr.
8 hr.
2-43

-------
DICHLOROMETHANE
CAS Number 75-09-2
Exposure Limit Range
(Mg/m3)
LFC to 1.77 x 107
APPLICABLE
DEFINITION
NIOSH REL34'a
Conversion Factor:
1 /jg/m3 = 2.83 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
fjig/m3
Lowest
Feasible
Concen. Ca
Time
10 hr.
Footnotes to Dichloromethane:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
b   Confined human carcinogen.
                               2-44

-------
1 ,2-DICHLOROPROPANE
CAS Number 78-87-5
Exposure Limit Range
(/xg/m3)
9.20 x 10'2 to 9.40 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1'3
OSHA STEL TWA1,
ACGIH STEL35
ACGIH TLV-TWA35,
OSHA PEL TWA1
SAAPS3 CT
SAAPS3 NV
SAAPS3 VA
ODOR THRESHOLD11
NIOSH REL56'a
SAAPS3 KS
SAAPS3 ME
RfC13
Conversion Factor:
1 pig/m3 = 2.13 x 10'4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/zg/m3
9.40 x 106 Ca
5.10 x 105
3 .50 x 105
1.00 x 105
8.33 x 103
5.80 x 103
1.18 x 103
1.41 x 102 Ca
13 .89
5.1
9.20 x 10'2
Time
30 min.
15 min.
8 hr.
8 hr.
8 hr.
24 hr.
1 min.
10 hr.
1 yr .
24 hr.
Lifetime
Footnotes to 1,2-Dichloropropane:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
                              2-45

-------
(CIS/TRANS) 1 ,3-DICHLOROPROPYLENE
CAS Number 542-75-6
Exposure Limit Range
(/xg/m3)
2.90 x 10"6 to 4.50 x 103
APPLICABLE
DEFINITION
ACGIH TLV-TWA1
SAAPS3 VA
SAAPS3 WI
SAAPS3 NV
SAAPS3 LA
SAAPS3 CT
SAAPS3 FL
SAAPS3 OK
SAAPS3 ND
SAAPS3 TX
SAAPS3 WA
MRL36'a
SAAPS3 FL
MRL36'b
SAAPS3 TX
RfC13
CONCENTRATION
FOR 1CT6 RISK4'C
SAAPS3 KS
SAAPS3 MI
SAAPS3 FL
Conversion Factor:
1 fig/m3 = 2.22 x ICT" PPM @ 25°C
INHALATION EXPOSURE LIMITS
ptg/m3
4.50 x 103
7.50 x 102
1.20 x 102
1.19 x 102
1.07 x 102
1.00 x 102
5.00 x 101
5.00 x 101
4.50 x 101
4.50 x 101
1.67 x 101
1.40 x 101
1.20 x 101
9.00
4.50
4.80 x 10"2
2.70 x 10"2
2.70 x 10"2
2.00 x 10'2
2.90 x 10'6
Time
8 hr.
24 hr.
24 hr.
8 hr.
8 hr.
8 hr.
8 hr.
24 hr.
8 hr.
30 min .
24 hr.
18 wk.
24 hr.
18 wk.
1 yr.
Lifetime
70 yr.
1 yr .
1 yr.
1 yr .
Footnotes to  (Cis/Trans) 1,3-Dichloropropene:

a   Intermediate  exposure.
b   Chronic  exposure.
c   Concentration equivalent  to  a  10~6 risk exposure
                               2-46

-------
DIELDRIN
CAS Number 60-57-1
Exposure Limit Range
(Mg/m3)
2.00 x 10"" to 2.50 x 102
APPLICABLE
DEFINITION
OSHA PEL TWA2
SAAPS3 NV
SAAPS3 WI
SAAPS3 CT
SAAPS3 VA
SAAPS3 FL
SAAPS3 TX
SAAPS3 WA
SAAPS3 FL
SAAPS3 AZ
SAAPS3 TX
SAAPS3 AZ
SAAPS3 PA
RfC13
SAAPS3 AZ
CONCENTRATION
FOR 1CT6 RISK4"5
SAAPS3 KS
SAAPS3 WA
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
^g/m3
2 .50 x 102
6.00
6.00
5.00
4 .10
2.50
2 .50
8. 00 x 10"1
6.00 x ID'1
4.20 x 10"1
2.50 x 10"1
1.10 x 10"1
3.50 x 10'2
3.90 x 10"4
2 .90 x 10"4
2.20 x 10"4
2.17 x 10~4
2 . 00 x 10"4
Time
8 hr.
8 hr.
24 hr.
8 hr.
24 hr.
8 hr.
30 min.
24 hr.
24 hr.
1 hr.
1 yr .
24 hr .
1 yr .
Lifetime
1 yr .
70 yr.
1 yr .
1 yr .
Footnotes to Dieldrin:
a   Concentration equivalent
to a 10  risk exposure.
                              2-47

-------
2,4-DINITROTOLUENE
CAS Number 121-14-2
Exposure Limit Range
(Mg/m3)
7.30 to 1.50 x 103
APPLICABLE
DEFINITION
OSHA PEL TWA1,
ACGIH TLV-TWA1
RfC13
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
Aig/m3
1.5.0 x 103
7.30
Time
8 hr.
Lifetime
2-48

-------
ETHYLBENZENE
CAS Number 100-41-4
Exposure Limit Range
(/zg/m3)
1.18 x 102 to 8.70 x 106
APPLICABLE
DEFINITION
NIOSH IDLH37
ACGIH STEL37
ACGIH TLV-TWA37,
OSHA PEL TWA37
NIOSH REL37
SAAPS3 MA
SAAPS3 VT
SAAPS3 OK
SAAPS3 NV
SAAPS3 WI
SAAPS3 LA
SAAPS3 CT
SAAPS3 VA
SAAPS3 ND
SAAPS3 AZ
SAAPS3 FL
SAAPS3 SC
SAAPS3 ND
SAAPS3 AZ, MA
SAAPS3 TX
SAAPS3 NY
SAAPS3 WA
MRL37
SAAPS3 FL
Conversion Factor:
1 fig/m3 = 2.30 x 10'" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/^g/m3
8.70 x 106
5.45 x 105
4.35 x 105
4 .35 x 10s
5.40 x 104
4 .35 x 104
4 .34 x 104
1. 04 x 104
1.04 x 104
1.03 x 104
8.70 x 103
7.20 x 103
5.43 x 103
4 . 50 x 103
4 .35 x 103
4 .35 x 103
4 . 34 x 103
3 .50 x 103
2 .00 x 103
1.45 x 103
1.45 x 103
1.31 x 103
1. 04 x 103
Time
30 min.
15 min.
8 hr.
1 hr.
15 min.
8 hr.
24 hr.
8 hr.
24 hr.
8 hr.
8 hr.
24 hr.
1 hr.
1 hr.
8 hr.
24 hr.
8 hr.
24 hr.
30 min.
1 yr .
24 hr.
18 wk.
24 hr.
2-49

-------
ETHYLBENZENE
CAS Number 100-41-4
Exposure Limit Range
(Mg/m3)
1.18 x 102 to 8.70 x 106
APPLICABLE
DEFINITION
RfC13
SAAPS3 TX
SAAPS3 MA
AALG19
SAAPS3 MA
Conversion Factor:
1 /xg/m3 = 2.30 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
1.00 x 103
4.34 x 102
3 .50 x 102
1.30 x 102
1.18 x 102
Time
Lifetime
1 yr .
1 yr.
24 hr.
24 hr.
2-50

-------
ETHYL CHLORIDE
CAS Number 75-00-3
Exposure Limit Range
(/xg/m3)
6.38 x 104 to 5.20 x 107
APPLICABLE
DEFINITION
SAAPS3 NY
NIOSH TWA IDLH1
OSHA PEL1
ACGIH TLV1
SAAPS3 MA
EPA OERR
SAAPS3 NV
Conversion Factor:
1 ^g/m3 = 3.73 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
jug/m3
5.20 x 107
1. 02 x 107
2.68 x 10s
2 .68 x 10s
3 .60 x 105
2.68 x 105
6.38 xlO4
Time
1 yr .
10 hr.
8 hr.
8 hr.
24 hr.
	
8 hr.
2-51

-------
FORMALDEHYDE
CAS Number 50-00-0
Exposure Limit Range
(Mg/m3)
4 . 00 x 10"2 to 3 .70 x 10"
APPLICABLE
DEFINITION
NIOSH IDLH1'3
AIHA ERPG(3)41'b
EHS LOG22
ACGIH STEL1, OSHA
TLV-STEL2
ODOR THRESHOLD11
AIHA ERPG(l)41'b
OSHA PEL TWA2
OSHA ACTION LEVEL2
ACGIH TLV-TWA1
CAPCOA18
SAAPS3 NC
SAAPS3 NV
SAAPS3 MA
SAAPS3 WA
MD SCREENING LEVEL10
NIOSH REL1
SAAPS3 AZ
SAAPS3 FL
SAAPS3 TX
SAAPS3 AZ
SAAPS3 CT, SD
SAAPS3 OK, VA
SAAPS3 LA
Conversion Factor:
1 fig/m3 = 8.18 x 10'4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
3.70 x 104 Ca
3.10 x 104
1.23 x 104
2.50 x 103
1.20 x 103
1.20 x 103
1.00 x 103
6.00 x 102
3.70 x 102
3.70 x 102
1.50 x 102
7.10 x 101
6.70 x 101
6.20 x 101
2.50 x 101
2 .00 x 101
2.00 x 101
1.50 x 101
1.50 x 101
1.20 x 101
1.20 x 101
1.20 x 101
7.69
Time
30 min.
1 hr.
30 min.
15 min.
1 min .
1 hr.
8 hr.
8 hr.
8 hr.
1 hr.
15 min.
8 hr.
15 min.
	
1 hr.
10 hr.
1 hr.
8 hr.
30 min.
24 hr.
8 hr.
24 hr.
1 yr .
2-52

-------
FORMALDEHYDE
CAS Number 50-00-0
Exposure Limit Range
(Mg/m3)
4.00 x 10'2 to 3.70 x 104
APPLICABLE
DEFINITION
SAAPS3 SC
SAAPS3 PA
SAAPS3 IN
SAAPS3 NY
SAAPS3 TX
SAAPS3 FL
SAAPS3 MA
RfG13,a
SAAPS3 AZ, MA, MI, VT
CONCENTRATION
FOR 10"6 RISK4'0
SAAPS3 FL, IN, KS, WA
AALG19
SAAPS3 MA
Conversion Factor:
1 /zg/m3 = 8.18 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
7.50
7.20
6.00
5.00
1.50
1.08
3 .30 x 10"1
1.40 x 10"1 Ca
8.00 x 10"2
7.70 x 10'2
7.70 x 10"2
6.20 x 10~2
4.00 x 10"2
Time
24 hr.
1 yr.
8 hr.
1 yr.
1 yr.
24 hr.
24 hr.
Lifetime
1 yr .
70 yr.
1 yr.
1 yr .
1 yr.
Footnotes to Formaldehyde:

a   A compound  is considered  to be  cancer-causing  if  denoted by
   Ca.
b    (3) denotes ERPG-3;  (1) denotes ERPG-1,   See Appendix  C  for
   discussion.
c   Concentration equivalent  to a 10"6  risk exposure.
                               2-53

-------
FREON 11
CAS Number 75-69-4
Exposure Limit Range
(^g/m3)
5.60 x 106 to 5. 71 x 107
APPLICABLE
DEFINITION
NIOSH/OSHA IDLH1
NIOSH/OSHA CEILING1
Conversion Factor:
1 /zg/rn3 = 1.75 x 10-4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
jug/m3 Time
5.71 x 107 30 min.
5.60 x 10s 15 min.
2-54

-------
FREON 12
CAS Number 75-71-8
Exposure Limit Range
(Mg/m3)
4 . 95 x 106 to 7.55 x 107
APPLICABLE
DEFINITION
NIOSH/OSHA TWA1
NIOSH/OSHA IDLH1
Conversion Factor:
1 /xg/m3 = 1.99 x 10 "4 ppm @ 25° C
INHALATION EXPOSURE LIMITS
/xg/m3 Time
4.95 x 10s 10 hr.
7.55 x 107 30 min.
2-55

-------
HEPTACHLOR
CAS Number 76-44-8
Exposure Limit Range
(/xg/m3)
7.68 x 10"4 to 7.00 x 10s
APPLICABLE
DEFINITION
NIOSH IDLH1'3
OSHA PEL TWA2
SAAPS3 NV
SAAPS3 WI
SAAPS3 VA
SAAPS3 FL, ND
SAAPS3 OK
SAAPS3 CT
SAAPS3 SC
SAAPS3 NY
SAAPS3 AZ
SAAPS3 FL
SAAPS3 TX
SAAPS3 AZ
SAAPS3 PA
SAAPS3 MA
SAAPS3 TX
RfG13,a
SAAPS3 AZ
SAAPS3 MA
SAAPS3 FL, WA
SAAPS3 KS
CONCENTRATION
FOR 1CT6 RISK4'b
Conversion Factor:
1 ^g/m3 = 6.50 x 10"5 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/ig/m3
7.00 x 105 Ca
5.00 x 102
1.20 x 101
1.20 x 101
8.30
5.00
5.00
2.50
2 .50
1.70
1.50
1.20
5.00 x 10"1
4 . 00 x 10"1
1.80 x 10"1
1.40 x 10"1
5.00 x 10"2
1.40 x 10~3 Ca
1.10 x 10"3
1.00 x 10"3
7.70 x 10~4
7.69 x 10"4
7.68 x 10~4
Time
30 min.
8 hr.
8 hr.
24 hr.
24 hr.
8 hr.
24 hr.
8 hr.
24 hr.
1 yr .
1 hr.
24 hr.
30 min.
24 hr.
1 yr .
24 hr.
1 yr .
Lifetime
1 yr .
1 yr .
1 yr .
1 yr .
70 yr .
Footnotes to Heptachlor:
                               2-56

-------
a  A compound  is  considered  to be cancer-causing if denoted by
   Ca.
b  Concentration  equivalent  to a 1CT6  risk  exposure.
                               2-57

-------
HEXACHLOROBENZENE
CAS Number 118-74-1
Exposure Limit Range
(^g/m3)
2 .17 x 1CT3 to 3 . 70 x 103
APPLICABLE
DEFINITION
SAAPS3 AZ
SAAPS3 AZ
SAAPS3 LA
SAAPS3 NY
SAAPS3 KS,KC
SAAPS3 AZ
SAAPS3 VT
SAAPS3 WA,SWEST
SAAPS3 FL (Pinellas)
SAAPS3 MI
SAAPS3 IN
SAAPS3 KS
RfG13,b
EPA OAR38
Concentration for 10'6
Risk 4-a
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
ptg/m3
3 .70 x 103
9.90 x 102
2.00 x 102
3 .00 x 101
7.04
2 .7
2.1
2 . 0
2.0
2 .0
2 . 0
2.00 x 1Q-1
4.00 x 10'3 Ca
	
2.17 x 10"3
Time
70 yr.
24 hr.
1 yr .
1 yr .
1 yr .
1 yr .
1 yr.
1 yr .
8 hr.
1 yr .
1 yr .
1 yr.
Lifetime
	
70 yr.
Footnotes to Hexachlorobenzene:

a  Concentration equivalent to a 10"6  risk  exposure.
b  A compound  is considered to be cancer-causing  if denoted by
   Ca.
                               2-58

-------
HEXACHLORO-1,3 BUTADIENE
CAS Number 106-99-0
Exposure Limit Range
(/xg/m3)
LFC to 4.50 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1'3
OSHA PEL39
OSHA TWA1
SAAPS3 NV
OSHA STEL39
ACGIH TLV39'a
SAAPS3 CT
SAAPS3 KY
OSHA PEL39
SAAPS3 VA
ODOR THRESHOLD11
SAAPS3 MA
SAAPS3 NC
SAAPS3 MI
AALG19
NIOSH REL39'a
Conversion Factor:
1 /zg/m3 = 4.44 x 10'" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
4.50 x 106 Ca
2 .25 x 106
2.20 x 105
5.24 x 104
2.25 x 104
(proposed)
2.25 x 104 Ca
2 .20 x 104
1.10 x 104
4.50 x 103
(proposed)
2.20 x 102
1.01
3 .50 x 10'2
3.50 x 10'2
3 .00 x 10'3
2 .86 x 10'3
Lowest Feasible
Concent . Ca
Time
30 min.
8 hr.
8 hr.
8 hr.
15 min.
8 hr.
8 hr.
8 hr.
8 hr.
24 hr.
	
24 hr.
1 yr.
1 yr .
1 yr.
8 hr.
Footnotes to Hexachloro-1,3-Butadiene:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
                              2-59

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HEXAHYDRO-1,3,5-TRINITRO-1,3,5
         TRIAZINE (RDX)
           CAS Number 121-82-4
Exposure Limit Range
(/xg/m3)
6. 00 x 10'2 to 3 . 00 x 10*
APPLICABLE
DEFINITION
SAAPS3 CT
SAAPS3 VA
SAAPS3 OK
SAAPS3 FL (Pinellas)
SAAPS3 TX
SAAPS3 FL (Pinellas)
NIOSH TWA40
SAAPS3 TX
SAAPS3 NV
SAAPS3 ND •
RfC13
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
/xg/m3
3 .00 x 104
2.50 x 104
3 .00 x 104
1.50 x 104
1.50 x 104
3 .60 x 103
1.50 x 103
1.50 x 103
3 .60 x 101
1.50 x 101
6.00 x 10"2
Time
8 hr.
24 hr.
24 hr.
8 hr.
30 min.
24 hr.
10 hr.
1 yr .
8 hr.
8 hr.
Lifetime
               2-60

-------
HEXANE
CAS Number 110-54-3
Exposure Limit Range
(^g/m3)
2.00 x 102 to 3 . 94 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1
OSHA PEL TWA1
LOAEL 42'a
NIOSH TWA1
OSHA PEL TWA42
NIOSH REL42
ACGIH TLV-TWA42
AALG19
RfC13
Conversion Factor:
1 /ig/m3 = 2.79 x 104 ppm @ 25° C
INHALATION EXPOSURE LIMITS
Mg/m3
3 . 94 x 10s
1.80 x 106
2 .04 x 105
1.80 x 105
1.80 x 105
1.80 x 105
1.76 x 105
3 .80 x 102
2 .00 x 102
Time
30 min.
8 hr.
	
10 hr.
8 hr.
10 hr.
8 hr.
24 hr.
Lifetime
Footnotes to Hexane:

a   The LOAEL is from the critical study used as the basis for
   the EPA RfC.
                              2-61

-------
HYDROGEN FLUORIDE
CAS Number 7664-39-3
Exposure Limit Range
(Mg/m3)
1.64 to 8.20 x 105
APPLICABLE
DEFINITION
CAPCOA18
SAAPS3 CT
SAAPS3 SD
AIHA ERPG-343
SAAPS3 RI
SAAPS3 SC
NIOSH IDLH43
NIOSH IDLH1
SAAPS3 VA
SAAPS3 NY
NAS PEL43
NIOSH CEILING1
AIHA ERPG-143
NAS PEL43
SAAPS3 MA
NAS STPL43
ACGIH TLV CEILING43
NIOSH REL TWA43
NIOSH TWA1
OSHA PEL TWA1
OSHA PEL TWA43
NAS STPL43
SAAPS3 KY
Conversion Factor:
1 /xg/m3 = 1.20 x 103 ppm @ 25° C
INHALATION EXPOSURE LIMITS
ptg/m3
8.20 x 105
5.00 x 104
5.00 x 104
4.15 x 104
3.00 x 104
2.50 x 104
2.49 x 104
2.49 x 104
2.00 x 104
8.30 x 103
8.00 x 103
5.00 x 103
4.15 x 103
4.00 x 103
3 .40 x 103
3 .00 x 103
2.60 x 103
2.50 x 103
2.50 x 103
2 .49 x 103
2 .49 x 103
1.00 x 103
8.30 x 102
Time
1 hr.
8 hr.
8 hr.
1 hr.
1 hr.
24 hr.
30 min.
30 min.
24 hr.
1 yr.
10 min.
15 min.
1 hr.
30 and 60 min.
24 hr.
10-30 and 60 min.
8 hr.
10 hr.
10 hr.
8 hr.
8 hr.
5 hr/dy;
3-4 dy/1 mo.
24 hr.
2-62

-------
HYDROGEN FLUORIDE
CAS Number 7664-39-3
Exposure Limit Range
(/zg/m3)
1.64 to 8.20 x 105
APPLICABLE
DEFINITION
SAAPS3 NC
SAAPS3 NV
SAAPS3 ND
SAAPS3 NC
EHS LOG22
Conversion Factor:
1 ^g/m3 = 1.20 x 103 ppm @ 25° C
INHALATION EXPOSURE LIMITS
//g/m3
2 .50 x 102
6.00 x 101
2.50 x 101
2.50 x 101
1.64
Time
15 min.
8 hr.
1 hr.
24 hr.
30 min.
2-63

-------
LEAD
CAS Number 7439- 92-1
Exposure Limit Range
(/xg/m3)
7.00 x 1CT2 to 1.50 x 102
APPLICABLE
DEFINITION
ACGIH TLV-TWA44
OSHA PEL TWA44
LOAEL44'3
SAAPS3 NV
SAAPS3 CT
SAAPS3 VA
OAQPS , NAAQS44
SAAPS3 AZ
SAAPS3 FL, ND
SAAPS3 PA
SAAPS3 VT, TN
SAAPS3 FL
SAAPS3 KS
SAAPS3 MA
NIOSH REL44
SAAPS3 FL
SAAPS3 MA
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
/zg/m3
1.50 x 102
5.00 x 101
1.10 x 101
4.00
3.00
2 .50
1.50
1.50
1.50
1.50
1.50
3 .60 x 1CT1
3 .57 x 10'1
1.40 x 10"1
< 1.00 x 10"1
9.00 x 10"2
7.00 x 10~2
Time
8 hr.
8 hr.
18 wk; 23 hr/dy.
8 hr.
8 hr.
24 hr.
	
4 mo .
8 hr.
1 yr.
3 mo .
24 hr.
1 yr .
24 hr.
1 hr.
1 yr.
1 yr.
Footnotes to Lead:

a   Intermediate exposure:  Less serious systemic effects
   including a 47% decrease in delta-amine levulinic acid
   dehydratase  (ALAD) activity.
                               2-64

-------
MANGANESE COMPOUNDS
CAS Number 7439-96-5
Exposure Limit Range
(Mg/m3)
5.00 x 10"2 to 1.00 x 107
APPLICABLE
DEFINITION
NIOSH IDLH45
NIOSH IDLH45
SAAPS3 VT
SAAPS3 PA
SAAPS3 CT
SAAPS3 SD
SAAPS3 VA
OSHA CEILING45
ACGIH TLV-TWA45
ACGIH STEL45
ACGIH TLV-TWA45
NIOSH STEL45
OSHA STEL45
SAAPS3 RI
NIOSH TWA1
OSHA PEL TWA45
SAAPS3 NV
SAAPS3 ND
SAAPS3 NC
RfC13
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
/"g/m3
1.00 x 107
5.00 x 10s
1.19 x 105
2.40 x 104
2.00 x 104
2.00 x 104
1.70 x 104
5.00 x 103
5.00 x 103
(dust)
3.00 x 103
(fume)
1.00 x 103
( fume )
3 .00 x 103
3.00 x 103
2 . 00 x 103
1.00 x 103
1.00 x 103
( fume )
1.19 x 102
5.00 x 101
3 .10 x 101
5.00 x 10"2
Time
30 min.
30 min.
1 yr .
1 yr .
8 hr.
8 hr.
24 hr.
15 min.
8 hr.
15 min.
8 hr.
15 min.
15 min.
1 hr.
10 hr.
8 hr.
8 hr.
1 hr.
24 hr.
Lifetime
2-65

-------
MERCURY
CAS Number 7439-97-6
Exposure Limit Range
(/ig/m3)
1.00 x ID'2 to 2.80 x 104
APPLICABLE
DEFINITION
NIOSH IDLH46
ACGIH TLV TWA46,
OSHA PEL TWA45
SAAPS3 VT
SAAPS3 VA
SAAPS3 AZ
SAAPS3
AALG19
SAAPS3 NC
SAAPS3 NC (Forco)
SAAPS3 ND,
SAAPS3 FL (Tampa) ,
SAAPS3 FL (Ft Lauderdale)
SAAPS3 OK
SAAPS3 TX
SAAPS3 AZ
RfC13
SAAPS3 SC
SAAPS3 PA (Philadelphia)
SAAPS3 NY
SAAPS3 CT,
SAAPS3 FL (Pinellas)
SAAPS3 MT
SAAPS3 NC
SAAPS3 TX
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
/zg/m3
2.80 x 104
5.00 x 101
1.20 x 101
1.70
1.50
1.00
9.50 x 10"1
6.00 X 10'1
6.00 x 10"1
5.00 x 10"1
5.00 x 10'1
5.00 x 10'1
4.00 x 10"1
3 .00 x 10"1
2 .50 X 10"1
2 .40 x 10"1
1.67 x 10"1
1.00 x 10"1
8.00 x 10"2
6.00 X 10'2
5.00 x lO"2
Time
30 min.
8 hr.
1 yr .
24 hr.
1 hr.
8 hr.
8 hr.
15 min.
24 hr.
8 hr.
24 hr.
30 min.
24 hr.
Lifetime
24 hr.
1 yr .
1 yr .
8 hr.
24 hr.
24 hr.
1 yr .
2-66

-------
MERCURY
CAS Number 7439-97-6
Exposure Limit Range
(Mg/m3)
1. 00 x 10"2 to 2.80 x 10"
APPLICABLE
DEFINITION
SAAPS3 KS
SAAPS3 FL (PINELLAS)
SAAPS3 MT
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
/ig/m3
2.40 x 10"2
2 .40 x 10"2
1.00 x 10"2
Time
1 yr .
24 hr.
1 yr.
2-67

-------
METHYL CHLORIDE
CAS Number 74-87-3
Exposure Limit Range
(/xg/m3)
1.6 to 2.10 x 107
APPLICABLE
DEFINITION
NIOSH IDLH1'*
NIOSH MAX. PEAK47
NIOSH CEILING47
NIOSH TWA47
OSHA STEL47
ACGIH STEL47
ACGIH TLV TWA47
OSHA TWA1
SAAPS3 KY
ODOR THRESHOLD11
EHS LOG22
SAAPS3 PA
SAAPS3 NV
SAAPS3 CT
SAAPS3 NY
SAAPS3 ND
SAAPS3 VA
SAAPS3 ND
AALG19
SAAPS3 KS
SAAPS3 MI
Conversion Factor:
1 fig/m3 = 4.76 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/zg/m3
2 .10 x 107 Ca
6.30 x 105
4 .20 x 105
2.10 x 105
2.10 x 105
2 .10 x 105
1.05 x 105
1.05 x 105
5.25 x 104
2.10 x 104
2.08 x 104
2.52 x 103
2 .50 x 103
2.10 X 103
2.10 x 103
2.05 x 103
1.75 x 103
1.05 x 103
3 .00 x 102
74 .12
1.6
Time
30 min.
5 min. in 3 hr .
15 min.
10 hr .
15 min.
15 min.
8 hr.
8 hr.
8 hr.
1 min .
30 min.
8 hr .
1 yr.
8 hr.
1 yr .
1 hr.
24 hr.
8 hr.
1 yr .
1 yr .
1 yr.
2-68

-------
Footnotes to Methyl Chloride:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
                              2-69

-------
METHYL CHLOROFORM
CAS Number 71-55-6
Exposure Limit Range
(Mg/m3)
1.00 x 103 to 5.55 x 107
APPLICABLE
DEFINITION
LOAEL48'a'b, NOAEL48 'c
LOAEL48'd
LOAEL48 'e
LOAEL48'f
NIOSH IDLH1
LOAEL48'3, NOAEL48'C
LOAEL48 'h
LOAEL48'1, NOAEL48 'c
LOAEL4 8'j
NOAEL48 
-------
METHYL CHLOROFORM
CAS Number 71-55-6
Exposure Limit Range
(/zg/m3)
1.00 x 103 to 5.55 x 107
APPLICABLE
DEFINITION
SAAPS3 OK
SAAPS3 VT
SAAPS3 NV
SAAPS3 CT, FL, SD
SAAPS3 NY
AALG19
SAAPS3 VA
SAAPS3 ND
SAAPS3 AZ
SAAPS3 ND
SAAPS3 TX
SAAPS3 IN
SAAPS3 NC
SAAPS3 MA
SAAPS3 FL
SAAPS3 WA
SAAPS3 LA
SAAPS3 TX
SAAPS3 AZ
SAAPS3 MA
SAAPS3 MA
SAAPS3 MA
Conversion Factor:
1 /ig/m3 = 1.80 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
ptg/m3
1.91 x 105
1.90 x 105
4.52 x 104
3 .80 x 104
3.80 x 104
3 .60 x 104
3 .20 x 104
2.46 x 104
2.00 x 104
1.91 x 104
1.91 x 104
1.90 x 104
1.20 x 104
1.00 x 104
9.16 x 103
6.33 x 103
4.55 x 103
1.91 x 103
1.10 x 103
1.04 x 103
1.04 x 103
1.00 x 103
Time
24 hr.
8 hr.
8 hr.
8 hr.
1 yr .
8 hr.
24 hr.
1 hr.
1 hr.
8 hr.
30 min.
8 hr.
24 hr.
24 hr.
24 hr .
24 hr.
8 hr.
1 yr .
24 hr.
24 hr.
1 yr .
1 yr.
2-71

-------
Footnotes to Methyl Chloroform:

a   Acute exposure:  Less serious systemic effects such as lower
   blood pressure.
b   Acute exposure:  Serious neurological effects such as
   anesthesia.
c   Acute exposure.
d   Acute exposure:  Less serious systemic effects such as
   greater urobilinogen.
e   Acute exposure:  Serious neurological effects such as obvious
   ataxia.
£   Acute exposure:  Less serious systemic effects such as mild
   eye  irritation.
9   Acute exposure:  Less serious neurological effects such as
   slight ataxia.
h   Acute exposure:  Less serious neurological effects such as
   light-headedness.
1   Acute exposure:  Less serious neurological effects such as
   altered EEC.
j   Acute exposure:  Less serious neurological effects such as
   impaired balance.
k   Acute exposure:  Less serious neurological effects such as
   less psychophysiological ability.
1   Chronic exposure.
   Acute exposure:  Less serious neurological effects such as
   lower psychomotor performance.
ra
                               2-72

-------
METHYLENE CHLORIDE
CAS Number 75-09-2
Exposure Limit Range
(/zg/m3)
1.20 x 1CT1 to 1.77 x 107
APPLICABLE
DEFINITION
NIOSH IDLH49'a
OSHA MAXIMUM2
OSHA CEILING2
LOAEL49'b
LOAEL49'C
NOAEL49'd
OSHA PEL TWA2
NOAEL49'6
NOAEL49-f
LOAEL49'9
LOAEL49'9
ODOR THRESHOLD11
NOAEL49'6
ACGIH TLV-TWA49
SAAPS3 ND
SAAPS3 SC
SAAPS3 PA
SAAPS3 WI
SAAPS3 NV
SAAPS3 AZ
SAAPS3 CT
CAPCOA18
SAAPS3 ND, SD
Conversion Factor:
1 jig/m3 = 2.83 x 1CT4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
1.77 x 107 Ca
7.06 x 106
3.53 x 106
2.82 x 106
2.44 x 106
1.77 x 10s
1.76 x 106
1.68 x 10s
1.68 x 106
1.06 x 106
1.06 x 10s
7.41 x 105
3 .53 x 105
1.77 x 105
1.74 x 104
8.75 x 103
8.40 x 103
8.40 x 103
8.33 x 103
7.60 x 103
7.00 x 103
3 .50 x 103
3 .50 x 103
Time
30 min.
5 min./2 hr .
15 min.
1 dy; 3-4 hr/dy.
1-2 hr.
5 dy/wk ; 1,3,7.5
hr/dy.
8 hr.
8 hr.
>l-5 yr; 8 hr/dy.
24 hr.
1 dy; 3-4 hr/dy.
1 min.
3 dy; 8 hr/dy.
8 hr.
1 hr.
24 hr.
1 yr .
24 hr.
8 hr.
1 hr.
8 hr.
1 hr.
8 hr.
2-73

-------
METHYLENE CHLORIDE
CAS Number 75-09-2
Exposure Limit Range
(Mg/m3)
1.20 x 10"1 to 1.77 x Id7
APPLICABLE
DEFINITION
RfC13
SAAPS3 AZ
SAAPS3 FL
SAAPS3 OK
SAAPS3 VA
MRL49'h
SAAPS3 IN
SAAPS3 FL
SAAPS3 TX
SAAPS3 LA
MRL49'1
SAAPS3 NY
SAAPS3 TX
SAAPS3 NC
SAAPS3 IN
SAAPS3 MA
SAAPS3 AZ
SAAPS3 KS
CONCENTRATION
FOR 10"6 RISK4'3
SAAPS3 MA, IL
SAAPS3 VT, WA
SAAPS3 MI
SAAPS3 FL, MA
Conversion Factor:
1 /jg/m3 = 2.83 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
3 .00 x 103
2.00 x 103
1.80 x 103
1.74 x 103
1.70 x 103
1.40 x 103
8.70 x 102
4.20 x 102
2.60 x 102
2.13 x 102
1.00 x 102
2 .70 x 101
2 . 60 x 101
2.40 x 101
2.13 x 101
9.45
5.60
2.13
2.10
2 .10
2.00
1.00
2.40 x 10'1
Time
Lifetime
24 hr.
8 hr.
24 hr.
24 hr.
18 wk.
8 hr.
24 hr.
30 min.
1 yr .
18 wk.
1 yr.
1 yr.
1 yr.
1 yr .
24 hr.
1 yr .
1 yr .
70 yr .
1 yr .
1 yr .
1 yr .
1 yr .
2-74

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METHYLENE CHLORIDE
CAS Number 75-09-2
Exposure Limit Range
(pig/m3)
1.20 x 10"1 to 1.77 x 107
APPLICABLE
DEFINITION
SAAPS3 RI
AALG19
Conversion Factor:
1 ng/m3 = 2.83 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
2.00 x 10'1
1.20 x 10'1
Time
1 yr .
1 yr .
Footnotes to Methylene Chloride:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
b   Acute exposure: Serious neurological effects such as impaired
   psychomotor tasks.
0   Acute exposure: Less serious neurological effects such as
   increased visual evoked response.
d   Intermediate exposure: Respiratory, cardio, hepatic and renal
   system effects as well as neurological effects.
   Acute exposure: Cardio effects.
   Chronic exposure: Hemato system effects.
   Acute exposure: Less serious neurological effects such as
   critical flicker frequency depression and vigilance decrease.
   Acute MRL.
   Intermediate MRL.
   Concentration equivalent to a 10~6  risk exposure.
                              2-75

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METHYL ETHYL KETONE
CAS Number 78-93-3
Exposure Limit Range
(/xg/m3)
3 . 90 x 102 to 1. 18 x 107
APPLICABLE
DEFINITION
SAAPS3 CT, SD
SAAPS3 SC
SAAPS3 VA
NIOSH IDLH1
ACGIH STEL50
OSHA PEL STEL50
NIOSH STEL50
NIOSH
(Occupational Std) 50
ACGIH TLV-TWA50,
OSHA PEL TWA50
OSHA PEL TWA1
NIOSH REL TWA1
SAAPS3 KY
ACGIH TLV
SAAPS3 MA
SAAPS3 NC
SAAPS3 NV
SAAPS3 FL, ND
SAAPS3 ND
SAAPS3 NC
SAAPS3 NY
RfC13
AALG19
Conversion Factor:
1 fig/m3 = 3.33 x 104 ppm @ 25° C
INHALATION EXPOSURE LIMITS
Mg/m3
1.18 x 107
1.48 x 107
9.80 x 105
9.00 x 10s
9.00 x 105
9.00 x 2105
8.85 x 105
6.00 x 105
6.00 x 105
5.90 x 105
5.90 x 10s
2.95 x 105
2 .05 x 105
1.60 x 10s
8.85 x 104
1.40 x 104
5.90 x 103
8 . 85 x 103
3 .70 x 103
1.97 x 103
1. 00 x 103
3 . 90 x 102
Time
8 hr.
24 hr.
24 hr.
30 min.
8 hr.
15 min.
15 min.
	
8 hr.
8 hr.
10 hr.
8 hr.
8 hr.
24 hr.
15 min.
8 hr.
8 hr.
24 hr.
24 hr.
1 yr .
Lifetime
24 hr.
2-76

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METHYL ISOBUTYL KETONE
CAS Number 108-10-1
Exposure Limit Range
(Mg/m3)
8.00 x 101 to 2.09 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1
OSHA PEL1
NIOSH STEL1
OSHA PEL STEL1
ACGIH TLV1
OSHA PEL TWA1
NIOSH REL TWA1
AALG19
ODOR THRESHOLD11
RfC13
Conversion Factor:
1 /zg/m3 = 2.40 x 10'4 ppm @ 25° C
INHALATION EXPOSURE LIMITS
/zg/m3
2.09 x 10s
4 .10 x 10s
3.00 x 105
3 .00 x 105
2 .05 x 105
2.05 x 105
2 .05 x 105
4 .90 x 102
4 .17 x 102
8 .00 x 101
Time
30 min.
8 hr.
15 min.
15 min.
8 hr.
8 hr.
10 hr.
8 hr.
1 min.
Lifetime
2-77

-------
METHYL ISOCYANATE
CAS Number 624-83-9
Exposure Limit Range
(Mg/m3)
4.7 to 4.66 x 104
APPLICABLE
DEFINITION
OSHA IDLH74
NIOSH IDLH1
OSHA PEL, ACGIH TLV74
EHS LOG22
Conversion Factor:
1 ^g/m3 = 4.22 x 10~4 ppm @ 25° C
INHALATION EXPOSURE LIMITS
^g/m3
4.66 x 104
7.11 x 103
5.00 x 101
4.7
Time
30 min.
30 min.
8 hr.
30 min.
2-78

-------


METHYL TERT-BUTYL ETHER (MTBE)
CAS Number 1634-04-4
Exposure Limit Range
(Mg/m3)
3.00 x 103 to 3.61 x 105
APPLICABLE
DEFINITION
WEEL TWA51
RfC13
Conversion Factor:
1 ^ig/m3 = 2.77 x 10~" ppm @ 25° C
INHALATION EXPOSURE LIMITS
/xg/m3
3.61 x 105
3.00 x 103
Time
8 hr.
Lifetime


2-79

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NAPHTHALENE
CAS Number 91-20-3
Exposure Limit Range
(Atg/m3)
1.20 x 102 to 2.67 x 106
APPLICABLE
DEFINITION
NIOSH IDLH52
NIOSH IDLH1
SAAPS3 SC
SAAPS3 CT
SAAPS3 VA
SAAPS3 NY
ACGIH STEL, OSHA STEL52 ,
NIOSH STEL1
ACGIH TLV-TWA52,
OSHA PEL TWA1, NIOSH
TWA1
NIOSH TWA52
ODOR THRESHOLD11
SAAPS3 MD
SAAPS3 NV
SAAPS3 ND
SAAPS3 ND, FL (Tampa)
AALG19
Conversion Factor:
1 jzg/m3 = 1.88 x 10"4 ppm @ 25° C
INHALATION EXPOSURE LIMITS
/zg/m3
2.67 x 106
1.33 x 106
1.25 x 106
1.00 x 106
8.00 x 105
1.67 x 105
7.50 x 104
5.00 x 104
5.00 x 104
3.62 x 104
1.40 x 104
1.19 x 103
7.50 x 102
5.00 x 102
1.20 x 102
Time
30 min.
30 min.
24 hr.
8 hr.
24 hr.
1 yr.
15 min.
8 hr.
10 hr.
1 min.
24 hr.
8 hr.
1 hr.
8 hr.
8 hr.
2-80

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N-NITROSODIMETHYLAMINE
CAS Number 67-75-9
Exposure Limit Range
(/ig/m3)
7.14 x 10"5 to 1.88 x 101
APPLICABLE
DEFINITION
EHS LOG22
RfG13,b
CONCENTRATION FOR 1CT6
RISK4'3
Conversion Factor:
1 lUg/m3 = 3.25 x 1CT4 ppm @ 25° C
INHALATION EXPOSURE LIMITS
/zg/m3
1.88 x 101
1.00 x ID'4 Ca
7.14 x 10"5
Time
30 min.
Lifetime
70 yr.
Footnotes to N-Nitrosodimethylamine:

a   Concentration  equivalent  to  a  10"6  risk exposure.
b   A compound  is  considered  to  be cancer-causing  if denoted  by
   Ca.
                               2-81

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N-NITROSODIPHENYLAMINE
CAS Number 156-10-5
Exposure Limit Range
(/xg/m3)
1.00 to 1.00
APPLICABLE
DEFINITION
RfG13,a
EpA53,a
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
ptg/m3
1.00
Ca
Time
Lifetime
	
Footnotes to N-Nitrosodiphenylamine:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
                               2-82

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  OCTAHYDRO-1,3,5,7-TETRANITRO
       1,3,5,7-TETRACCINE (HMX)
                CAS Number 2691-41-0
Exposure Limit Range
     (/xg/m3)

 2.00 x 102 to 2.00 x 102
  Conversion Factor

    NOT APPLICABLE
                      INHALATION EXPOSURE LIMITS
    APPLICABLE
    DEFINITION
/xg/m3
                                       Time
RfC1
                     2.00 x 102
              Lifetime
                     2-83

-------
PENTACHLOROPHENOL
CAS Number 87-86-5
Exposure Limit Range
5.00 x 10"2 to 3.00 x 104
APPLICABLE
DEFINITION
SAAPS3 FL (Pinellas)
SAAPS3 AZ
SAAPS3 PA (Philadelphia)
SAAPS3 SD
SAAPS3 CT
SAAPS3 VA
SAAPS3 TX
SAAPS3 FL (Pinellas)
SAAPS3 SC, OK
SAAPS3 AZ
SAAPS3 KS
SAAPS3 KS (Kansas City)
NIOSH IDLH54
SAAPS3 NY
SAAPS3 FL (Pinellas)
SAAPS3 VT
SAAPS3 TX
SAAPS3 NC, NC (Forco)
SAAPS3 NV
SAAPS3 MA
SAAPS3 MA
SAAPS3 ND, FL (Ft Lauderdale)
SAAPS3 NC, NC (Forco)
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
Mg/m3
3 .00 x 104
1 .30 x 104
1.20 x 104
1.00 x 104
1.00 x 104
8.30 x 103
5.00 x 103
5 .00 x 103
5. 00 x 103
4 . 00 x 103
2 .56 x 103
2. 56 x 103
2.50 x 103
1.67 x 103
1.20 x 103
1.19 x 103
5. 00 X 102
2 .50 x 101
1.20 x 101
1. 00 x 101
1. 00 x 101
5.0
3.0
Time
1 yr .
1 hr.
1 yr .
8 hr.
8 hr.
24 hr.
30 min.
8 hr.
24 hr.
24 hr.
1 yr.
1 yr.
30 min.
1 yr .
24 hr.
1 yr .
1 yr .
1 hr.
8 hr.
24 hr.
1 yr.
8 hr.
24 hr .
2-84

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PENTACHLOROPHENOL
CAS Number 87-86-5
Exposure Limit Range
(^g/m3)
5.00 x 10'2 to 3.00 x 104
APPLICABLE
DEFINITION
RfG13,a
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
ptg/m3
5.00 x 10'2 Ca
Time
Lifetime
Footnotes to Pentachlorophenol:
a   A compound is considered to be cancer-causing if denoted by
   Ca.
                              2-85

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POLYCHLORINATED BIPHENYLS
(PCS)
CAS Number 1336-36-3
Exposure Limit Range
(//g/m3)
5. 00 x 10"4 to 1.00 x 103
APPLICABLE
DEFINITION
NIOSH REL55'a
SAAPS3 PA
MD Screening Level10
SAAPS3 OK
SAAPS3 VA
SAAPS3 FL
SAAPS3 IN
SAAPS3 SC
SAAPS3 NY
SAAPS3 AZ
SAAPS3 PA
SAAPS3 TX
SAAPS3 NC
SAAPS3 AZ
SAAPS3 TX
SAAPS3 MA
SAAPS3 IN
SAAPS3 KS
SAAPS3 VT
RfG13,b
SAAPS3 AZ
SAAPS3 MA
Conversion Factor:
1 /ig/m3 = 1.06 x 10'4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/ig/m3
1.00 x 103
1.80 x 102
1.00 x 101
1.00 x 101
8.00
5.00
2.50
2.50
1.67
3.00 x 10"1
1.80 x 1CT1
1.00 x 10'1
8.30 x 10~2
7.90 x 10"2
1.00 x 10"2
3 .00 x 10~3
1.00 x 10"3
8.33 x 10"4
8.10 x 10'4
8.00 x ID'4 Ca
6.10 x 10'4
5. 00 x 10"4
Time
1 hr.
1 yr.
1 hr.
24 hr.
24 hr.
8 hr.
8 hr.
24 hr.
1 yr.
1 hr.
1 yr.
30 min.
1 yr.
24 hr.
1 yr.
24 hr.
1 yr .
1 yr .
1 yr .
Lifetime
1 yr.
1 yr.
2-86

-------
Footnotes to PCBs:

a   Chlorodiphenyl  (42% chlorine).
b   A compound is considered to be cancer-causing if denoted by
   Ca.
                              2-87

-------
STYRENE
CAS Number 100-42-5
Exposure Limit Range
(/xg/m3)
1.75 to 2. 15 x 107
APPLICABLE
DEFINITION
NIOSH IDLH57
ACGIH STEL57,
OSHA STEL57
NIOSH TWA57
ACGIH TLV TWA57,
OSHA PEL TWA57
SAAPS3 NC (Forsyth Co)
SAAPS3 NC
SAAPS3 NV
SAAPS3 CT
SAAPS3 ND
SAAPS3 VA
SAAPS3 IN (Indianapolis)
SAAPS3 ND
SAAPS3 NC (Forsyth Co)
SAAPS3 NC
RfC13
SAAPS3 NY
SAAPS3 VT
ODOR THRESHOLD11
SAAPS3 MA
SAAPS3 RI
AALG19
SAAPS3 KS (Kansas city)
SAAPS3 IN
Conversion Factor:
1 /ig/m3 = 2.31 x 10"1 PPM @ 25°C
INHALATION EXPOSURE LIMITS
jj-g/m3
2 .15 x 107
4.25 x 105
2.15 x 10s
2.15 x 105
4 .25 x 104
4.25 x 104
5.12 x 103
4.30 x 103
4.25 x 103
3 .60 x 103
2.17 x 103
2 . 15 x 103
1.34 x 103
1.30 x 103
1 . 00 x 103
7.16 x 102
5.12 x 102
2 .04 x 102
1.16 x 102
3 .00 x 101
2 .63 x 101
3 .45
3 .45
Time
30 min.
15 min.
10 hr.
8 hr.
15 min.
15 min.
8 hr.
8 hr.
1 hr.
24 hr.
8 hr.
8 hr.
24 hr.
24 hr.
Lifetime
1 yr .
1 yr .
1 min .
24 hr.
1 yr .
1 yr .
1 yr .
1 yr.
   21
-  I

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STYRENE
CAS Number 100-42-5
Exposure Limit Range
(Mg/m3)
1.75 to 2.15 x 107
APPLICABLE
DEFINITION
SAAPS3 MA, (Allowable
Ambient Level)
SAAPS3 KS
Conversion Factor:
1 /ig/m3 = 2.31 x 10"1 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
1.75
1.75
Time
	
1 yr.
2-89

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     2,3,7,8-TETRACHLORODIBENZO-p-
                       DIOXIN
                   CAS Number 1746-01-6
  Exposure Limit Range
  2.33 x 10-8 to 2.33 x ICT
     Conversion Factor:

       NOT APPLICABLE
                           INHALATION EXPOSURE LIMITS
      APPLICABLE
      DEFINITION
                    Time
 CONCENTRATION FOR 1CT6
 RISK4-3
2.33 x 10'
70 yr,
Footnotes to 2,3,7,8-Tetrachlorodibenzo-p-Dioxin:

a   Concentration equivalent to a 10"6 risk exposure.
                          2-90

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1 , 1 ,2,2-TETRACHLOROETHANE
CAS Number 79-34-5
Exposure Limit Range
(Mg/m3)
1.70 x 10'2 to 1.05 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1'3
LOAEL59'b
LOAEL59'C
LOAEL59'd
NOAEL59'6
LOAEL59'f
OSHA PEL TWA2
AALG19'9
ACGIH STEL59
NIOSH TWA59
SAAPS3 PA
SAAPS3 WI
SAAPS3 NV
SAAPS3 VA
SAAPS3 FL
SAAPS3 TX
SAAPS3 ND
SAAPS3 OK
SAAPS3 SC
SAAPS3 CT
SAAPS3 AZ
SAAPS3 NY
SAAPS3 WA
Conversion Factor:
1 /jg/m3 = 1.43 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/zg/m3
1.05 x 10s Ca
8.12 x 10s
8.12 x 105
1.05 x 105
9.10 x 104
6.30 x 104
3 .50 x 104
7.00 x 103
7.00 x 103
7.00 x 103
1.68 x 102
1.68 x 102
1.67 x 102
1.20 x 102
7.00 x 101
7.00 x 101
6.90 x 101
6 .80 x 101
3 .50 x 101
3 .44 x 101
3.30 x 101
2.33 x 101
2.33 x 101
Time
30 min.
10 min.
10-30 min.
8 hr.
(work place)
10 min.
3-6 mo.
8 hr.
1 yr .
15 min.
10 hr.
1 yr.
24 hr.
8 hr.
24 hr.
8 hr.
30 min.
8 hr.
24 hr.
24 hr.
8 hr.
1 hr.
1 yr .
24 hr.
2-91

-------
1 , 1 ,2,2-TETRACHLOROETHANE
CAS Number 79-34-5
Exposure Limit Range
(Mg/m3)
1.70 x 1CT2 to 1.05 x 106
APPLICABLE
DEFINITION
SAAPS3 MA
SAAPS3 FL
SAAPS3 AZ
SAAPS3 TX
SAAPS3 LA
CONCENTRATION
FOR 1CT6 RISK4'h
RfG13,a
SAAPS3 AZ
SAAPS3 MA, MI
SAAPS3 KS
SAAPS3 FL, VT
Conversion Factor:
1 /ig/m3 = 1.43 x 10"4 PPM ® 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
1.87 x 101
1.68 x 101
8.80
7.00
1.70
1.35 x ID'1
3.00 x 10"2 Ca
2.40 x 10"2
2.00 x 10"2
1.72 x 10"2
1.70 x 10"2
Time
24 hr.
24 hr.
24 hr.
1 yr .
1 yr .
70 yr .
Lifetime
1 yr.
1 yr .
1 yr.
1 yr.


Footnotes to 1,1,2,2-Tetrachloroethane:

a   A compound  is considered to be cancer-causing if denoted by
   Ca.
b   Acute exposure: Less serious systemic effects such as
   vomiting and mucosal irritation.
c   Acute exposure: Less serious neurological effects such as
   dizziness.
d   Intermediate  exposure: Less serious systemic effects such as
   jaundice.
e   Acute exposure: Less serious systemic effects such as
   vomiting and mucosal irritation and less serious neurological
   effects such  as dizziness.
f   Intermediate  exposure: Less serious neurological effects such
   as tremors.
9   Ceiling limit for occupational exposure.
h   Concentration equivalent to a 10"6  risk  exposure.
                               2-92

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TETRACHLOROETHYLENE (PCE)
CAS Number 127-18-4
Exposure Limit Range
(/*g/m3)
1.00 x 10'2 to 1.36 x 107
APPLICABLE
DEFINITION
LOAEL60'3
LOAEL60'b
NOAEL60'C
OSHA MAXIMUM2
LOAEL60'd'e
LOAEL60'f
ACGIH STEL60, OSHA
CEILING2
LOAEL60'g, NOAEL60'0
OSHA PEL TWA2
LOAEL60'h
ACGIH TLV-TWA1
NOAEL60'1
NOAEL60'C
LOAEL60'j
ODOR THRESHOLD11
SAAPS3 ND
SAAPS3 AZ
SAAPS3 PA
SAAPS3 NV
Conversion Factor:
1 fig/m3 = 1.47 x ICT" PPM @ 25°C
INHALATION EXPOSURE LIMITS
//g/m3
1.36 x 107
6.78 x 10s
3 .39 x 10s
2.03 x 106
1.90 x 106
1.46 x 106
1.36 x 106
7.19 x 105
6.78 x 105
6.78 x 105
3 .39 x 105
1.42 x 105
1.36 x 105
6.80 x 104
3.20 x 104
1.37 x 104
1.10 x 104
8.04 x 103
7.98 x 103
Time
> 3 hr.
> 3 hr.
>3 hr.
5 min. in
hr.
1 dy; 0.5-
hr.
1 dy; 0.05-
hr.
3
2
-2
15 min.
Idy; 0.05-
hr.
2
8 hr.
5 dy; 7.5
hr/dy.
8 hr.
6 yr .
(occup . )
5dy; 7.5
hr/dy.
14 yr .
(occup . )
1 min .
1 hr.
1 hr.
1 yr .
8 hr.
2-93

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TETRACHLOROETHYLENE (PCE)
CAS Number 127-18-4
Exposure Limit Range
(Mg/m3)
1.00 x 10~2 to 1.36 x 107
APPLICABLE
DEFINITION
CAPCOA18
SAAPS3 VA
SAAPS3 OK
MRL60
SAAPS3 FL
SAAPS3 ND
SAAPS3 SC
SAAPS3 SD
NIOSH REL60
SAAPS3 NY
SAAPS3 MA
SAAPS3 IN
SAAPS3 FL
SAAPS3 AZ
SAAPS3 TX
SAAPS3 NC
SAAPS3 LA
SAAPS3 TX
SAAPS3 VT
SAAPS3 AZ
CONCENTRATION
FOR 10"6 RISK4'k
SAAPS3 IN
SAAPS3 WA
Conversion Factor:
1 ^g/m3 = 1.47 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
6.80 x 103
5.70 x 103
5.45 x 103
4.00 x 103
3.40 x 103
3.39 x 103
3.35 x 103
3 .35 x 103
3.00 x 103
1.12 x 103
9.22 x 102
8.50 x 102
8.04 x 102
7.70 x 102
3.40 x 102
1.90 x 102
1.05 x 102
3.40 x 101
4.10
2.10
1.72
1.70
1.10
Time
1 hr.
24 hr.
24 hr.
18 wk.
8 hr.
8 hr.
24 hr.
8 hr.
10 hr.
1 yr .
24 hr.
8 hr.
24 hr.
24 hr.
30 min.
1 yr .
1 yr.
1 yr .
1 yr .
1 yr.
70 yr .
1 yr .
1 yr .
2-94

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TETRACHLOROETHYLENE (PCE)
CAS Number 127-18-4
Exposure Limit Range
(/zg/m3)
1.00 x 10"2 to 1.36 x 107
APPLICABLE
DEFINITION
SAAPS3 KS
AALG19
SAAPS3 MI
SAAPS3 RI
SAAPS3 MA
SAAPS3 MA
Conversion Factor:
1 ^g/m3 = 1.47 x 10~" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/zg/m3
1.05
8.60 x ID'1
1.70 x 1Q-1
5.00 x 10'2
2.00 x 10'2
1.00 x 10'2
Time
1 yr.
1 yr .
1 yr.
1 yr.
1 yr .
1 yr .
Footnotes to Tetrachloroethylene (PCE):

a  Acute exposure:  serious neurological effects such as
   anesthesia.
b  Acute exposure:  less serious neurological effects such as
   mood/personality changes.
c  Acute exposure
d  Acute exposure:  less serious neurological effects such as
   incoordination.
e  Acute exposure:  less serious neurological effects such as
   dizziness and sleepiness.
f  Acute exposure:  less serious systemic respiratory effects
   such as  irritation
3  Acute exposure:  less serious systemic respiratory effects
   such as  slight ocular irritation.
h  Acute exposure:  less serious neurological effects such as
   cortical depression.
i  Intermediate exposure
j  Intermediate exposure: less serious systemic renal effects
   such as  increased proteinuria, B-glucuronidase, and
   lysozyuria.
k  Concentration equivalent to a 10~6 risk exposure.
                              2-95

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TETRYL
CAS Number 479-45-8
Exposure Limit Range
(Mg/m3)
1.00 x 102 to 7.50 x 105
APPLICABLE
DEFINITION
NIOSH IDLH1
SAAPS3 NV
SAAPS3 CT
SAAPS3 VA
SAAPS3 ND, FL (Pinellas)
SAAPS3 FL (Pinellas)
ACGIH TLV-TWA61
SAAPS3 TX
SAAPS3 TX
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
/ug/m3
7.50 x 105
3.60 x 104
3.00 x 104
2.50 x 104
1.50 x 104
3 .60 x 103
1.50 x 103
1.00 x 103
1.00 x 102
Time
30 min.
8 hr.
8 hr.
24 hr.
8 hr.
24 hr.
8 hr.
30 min.
1 yr .
2-96

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TOLUENE
*
CAS Number 108-88-3
Exposure Limit Range
(Mg/m3)
1. 02 x 101 to 7 .66 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1
NOAEL62 'a
OSHA MAXIMUM2
NOAEL62 'a
NOAEL62'b
OSHA CEILING2
OSHA TLV-STEL2
EEGL9
LOAEL62'C
NIOSH STEL62
NOAEL62'3
ACGIH STEL1
LOAEL62'd
LOAEL62'6
NOAEL62 'a
ACGIH TLV-TWA1
NIOSH REL1
OSHA PEL TWA1
LOAEL62'3
LOAEL62'3
LOAEL62'f'9
NOAEL62 'h
SAAPS3 NC
SAAPS3 OK
Conversion Factor:
1 /ig/m3 = 2.61 x 10~" PPM @ 25°C
INHALATION EXPOSURE LIMITS
jug/m3
7.66 x 106
2.30 x 106
1.92 x 106
1.28 x 10s
1.24 x 106
1.15 x 10s
7.66 x 105
7.66 x 105
7.66 x 105
7.66 x 105
6.13 x 105
5.75 x 105
3.83 x 105
3.83 x 105
3.83 x 10s
3.77 x 105
3.75 x 105
3.75 x 10s
3 .37 x 105
1.62 x- 105
1.57 x 105
1.53 x 105
5.60 x 104
3.77 x 104
Time
30 min.
>3 yr .
10 min.
7-10 yr; 8 hr/dy.
2-14 mo; 8 hr/dy.
15 min.
15 min.
24 hr.
2-8 hr/dy; 18 mo.
15 min.
>1 yr.
15 min.
6 hr.
6.5 hr.
>3 yr .
8 hr.
10 hr.
8 hr.
5.7 yr .
4-43 yr.
82 mo.
6 hr.
15 min.
24 hr.


2-97

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TOLUENE
CAS Number 108-88-3
Exposure Limit Range
(Mg/m3)
1.02 x 101 to 7.66 x 106
APPLICABLE
DEFINITION
SAAPS3 WI
SAAPS3 NV
SAAPS3 VT
SAAPS3 LA
SAAPS3 CT, FL, SD
SAAPS3 NY
SAAPS3 VA
SAAPS3 ND
SAAPS3 AZ
SAAPS3 NC
SAAPS3 ND
SAAPS3 TX
SAAPS3 AZ
SAAPS3 RI
SAAPS3 IN
AALG19
SAAPS3 WA
MRL62
SAAPS3 FL
ODOR THRESHOLD11
RfC13
SAAPS3 RI
SAAPS3 TX
SAAPS3 FL
Conversion Factor:
1 /ig/tn3 = 2.61 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
9.00 x 103
8.93 x 103
8.93 x 103
8.90 x 103
7.50 x 103
7.50 x 103
6.30 x 103
5.65 x 103
4.70 x 103
4.70 x 103
3 .77 x 103
3.75 x 103
3 .00 x 103
2.00 x 103
1.88 x 103
1.40 x 103
1.25 x 103
1.10 x 103
9.00 x 102
6.50 x 102
4.00 x 102
4 . 00 x 102
3.75 x 102
3 . 00 x 102
Time
24 hr.
8 hr.
24 hr.
8 hr.
8 hr.
1 yr .
24 hr.
1 hr.
1 hr.
24 hr.
8 hr.
30 min.
24 hr.
24 hr.
8 hr.
8 hr.
24 hr.
18 wk.
24 hr.
1 min.
Lifetime
1 yr .
1 yr.
1 yr .
2-98

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TOLUENE
CAS Number 108-88-3
Exposure Limit Range
1.02 x 101 to 7.66 x 106
APPLICABLE
DEFINITION
SAAPS3
SAAPS3
SAAPS3
SAAPS3
MA
MA
MA
MA
Conversion Factor:
1 ng/m3 = 2.61 x ICT4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
^g/m3
2.60 x 102
1.80 x 102
1.02 x 101
1.02 x 101
Time
24 hr.
1 yr .
24 hr.
1 yr .
Footnotes to Toluene:
   Chronic exposure.
   Intermediate exposure.
   Chronic exposure:  Less serious systemic effects such as
   elevated alanine aminotransferase to aspartate
   aminotransferase ratios in all patients and fatty
   infiltration.
   Acute exposure:  Less serious neurological effects such as
   mild intoxication.
   Acute exposure:  Less serious neurological effects such as
   decreased manual dexterity and visual perception.
   Chronic exposure:  Less serious systemic effects such as
   significant decrease in lymphocytes.
   Chronic exposure:  Less serious neurological effects such as
   headaches and dizziness.
   Acute exposure.
                              2-99

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TOXAPHENE
CAS Number 8001-35-2
Exposure Limit Range
(Mg/m3)
3.00 x 10'3 to 2.00 x 105
APPLICABLE
DEFINITION
NIOSH IDLH63'a
EHS LOG22
ACGIH STEL63
ACGIH TLV-TWA63,
OSHA PEL TWA2
NIOSH REL TWA63
SAAPS3 NV
SAAPS3 WI
SAAPS3 ND
SAAPS3 AZ
SAAPS3 VA
SAAPS3 FL, ND
SAAPS3 OK
SAAPS3 TX
SAAPS3 CT
SAAPS3 SC
SAAPS3 WA
SAAPS3 NY
SAAPS3 AZ
SAAPS3 FL
SAAPS3 PA
SAAPS3 TX
SAAPS3 AZ
SAAPS3 KS
Conversion Factor:
1 ^g/m3 = 5.90 x 10"5 PPM @ 25°C
INHALATION EXPOSURE LIMITS
ptg/m3
2.00 x 105 Ca
2.00 x 104
1.00 x 103
5.00 x 102
5.00 x 102
1.20 x 101
1.20 x 101
1.00 x 101
8 .30
8 .30
5.00
5 . 00
5.00
2.50
2 .50
1. 70
1.67
1.50
1.20
1.20
5.00 x 10'1
4.00 x 10"3
3 .13 x 10"3
Time
30 min.
30 min.
15 min.
8 hr.
10 hr.
8 hr.
24 hr.
1 hr.
1 hr.
24 hr.
8 hr.
24 hr.
30 min.
8 hr.
24 hr.
24 hr.
1 yr .
24 hr.
24 hr.
1 yr .
1 yr .
1 yr .
1 yr .
2-100

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TOXAPHENE
CAS Number 8001-35-2
Exposure Limit Range
(ptg/m3)
3 . 00 x 10'3 to 2.00 x 105
APPLICABLE
DEFINITION
CONCENTRATION
FOR 10~6 RISK4'b
SAAPS3 FL
SAAPS3 MI, WA
Conversion Factor:
1 /ig/m3 = 5.90 x 10"5 PPM @ 25°C
INHALATION EXPOSURE LIMITS
//g/m3
3.12 x 10"3
3.10 x 10"3
3.00 x 10"3
Time
70 yr.
1 yr.
1 yr.
Footnotes to Toxaphene:

a   A compound is considered to be cancer-causing  if denoted by
   Ca.
b   Concentration equivalent to a 10"6  risk  exposure.
                              2-101

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1 ,2,4-TRICHLOROBENZENE
CAS Number 120-82-1
Exposure Limit Range
(Mg/m3)
2.10 x 102 to 4.00 x 10"
APPLICABLE
DEFINITION
OSHA PEL CEILING55
ACGIH TLV1
NIOSH REL CEILING56
NIOSH TWA1
RfC13
Conversion Factor:
1 /jg/m3 = 1.90 x 10~" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
4.00 x 104
3.70 x 104
4.00 x 103
4.00 x 103
2.10 x 102
Time
8 hr.
8 hr.
10 hr.
15 min.
Lifetime
2-102

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1,1,2-TRICHLORO-l ,2,2-
 TRIFLUOROETHANE
     CAS Number 76-13-1
Exposure Limit Range
(/zg/m3)
3.0 x 104 to 9.50 x 106
APPLICABLE
DEFINITION
NIOSH REL STEL1
NIOSH OSHA TWA1
ODOR THRESHOLD11
RfC13
Conversion Factor:
1 /zg/m3 = 1.28 x 10'4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
^g/m3
9.50 x 10s
17.60 x 105
3.51 x 105
3.00 x 104
Time
15 min.
10 hr.
1 min.
Lifetime
         2-103

-------
1 , 1 ,2-TRICHLOROETHANE
CAS Number 79-00-5
Exposure Limit Range
(/xg/m3)
6.00 x 10"2 to 2.78 x 106
APPLICABLE
DEFINITION
NIOSH IDLH1-3
SAAPS3 PA
ACGIH TWA64
OSHA PEL TWA2
OSHA PEL TWA64,
ACGIH TWA64
SAAPS3 KY
SAAPS3 WI
SAAPS3 NV
SAAPS3 VA
SAAPS3 AZ
SAAPS3 ND
SAAPS3 TX
SAAPS3 OK
SAAPS3 FL
SAAPS3 CT, IN
SAAPS3 NY
SAAPS3 WA
SAAPS3 FL
CONCENTRATION
FOR 10"6 RISK4'b
SAAPS3 TX
SAAPS3 PA
SAAPS3 AZ
SAAPS3 MA
Conversion Factor:
1 ^g/m3 = 1.8 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
jug/m3
2.78 x 106 Ca
1.33 x 10s
5.55 x 104
4.50 x 104
5.50 X 103
4.50 X 103
1.08 x 103
1.07 x 103
9.20 x 102
7.50 x 102
5.50 x 102
5.50 x 102
5.45 x 102
4.50 x 102
2.25 x 102
1.50 x 102
1.50 x 102
1.08 x 102
6.24 x 101
5.50 x 101
3 .30 x 101
3 .00 x 101
1.48 x 101
Time
30 min.
1 yr .
8 hr.
8 hr.
8 hr.
8 hr.
24 hr.
8 hr.
24 hr.
1 hr.
8 hr.
30 min.
24 hr.
8 hr.
8 hr.
1 yr .
24 hr.
24 hr.
70 yr .
1 yr.
1 yr.
24 hr.
24 hr.
2-104

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1 , 1 ,2-TRICHLOROETHANE
CAS Number 79-00-5
Exposure Limit Range
(Mg/m3)
6.00 x 10'2 to 2.78 x 106
APPLICABLE
DEFINITION
SAAPS3 RI
SAAPS3 LA
RfG13,a
SAAPS3 AZ
SAAPS3 IN
SAAPS3 KS
SAAPS3 VT
SAAPS3 MA
Conversion Factor:
1 /^g/rn3 = 1.8 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/zg/m3
7.00
6.25
1.00 x 10"1 Ca
8.20 x 10"2
6.30 x 10'2
6.25 x lO'2
6.10 x 10'2
6.00 x 10'2
Time
1 yr .
1 yr.
Lifetime
1 yr .
1 yr .
1 yr.
1 yr .
1 yr .
Footnotes to 1,1,2-Trichloroethane:

a   A compound  is considered to be cancer-causing  if denoted by
   Ca.
b   Concentration equivalent to a 10~6  risk exposure.
                              2-105

-------
TRICHLOROETHYLENE
CAS Number 79-01-6
Exposure Limit Range
(Mg/m3)
5.00 x 10"2 to 1.60 x 107
APPLICABLE
DEFINITION
LOAEL65'3
LOAEL65'b
NIOSH IDLH1'0
OSHA MAXIMUM2
LOAEL65'd
ACGIH STEL1, OSHA
CEILING2
EEGL9
LOAEL65'6
OSHA PEL TWA2
ACGIH TLV-TWA1
SPEGL9
NIOSH REL1
SAAPS3 OK
ODOR THRESHOLD11
SAAPS3 ND
SAAPS3 PA
SAAPS3 SC
SAAPS3 WI
SAAPS3 NV
SAAPS3 VA
SAAPS3 IN, SD, FL
SAAPS3 ND
SAAPS3 TX
Conversion Factor:
1 /^g/m3 = 1.83 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/^g/m3
1.60 x 107
5.50 x 106
5.46 x 106 Ca
1.64 x 106
1.10 x 10s
1.09 x 10s
1.09 x 10s
6.00 x 105
5.37 x 105
2.69 x 105
2.20 x 105
1.37 x 105
1.30 x 105
1.15 x 105
1.07 x 104
6.84 X 103
6.80 x 103
6 .48 x 103
6.43 x 103
4 .50 x 103
2.70 x 103
2 .69 x 103
1.35 x 103
Time
1 hr.
2 hr.
30 min .
5 min. in any 2
hr.
1 min.
15 min.
24 hr.
8 hr.
8 hr.
8 hr.
24 hr.
10 hr.
24 hr.
1 min .
1 hr.
1 yr.
24 hr.
24 hr.
8 hr.
24 hr.
8 hr.
8 hr.
30 min.
2-106

-------
TRICHLOROETHYLENE
CAS Number 79-01-6
Exposure Limit Range
(/xg/m3)
5.00 x 10'2 to 1.60 x 107
APPLICABLE
DEFINITION
SAAPS3 AZ
SAAPS3 NY
SAAPS3 FL
SAAPS3 AZ
SAAPS3 TX
SAAPS3 LA, NC
SAAPS3 MA
AALG19
RfC13
SAAPS3 WA
SAAPS3 AZ
SAAPS3 MA
SAAPS3 MI
SAAPS3 KS, IN, IL
CONCENTRATION
FOR 10"6 RISK4'f
SAAPS3 VT
SAAPS3 RI
SAAPS3 MA
SAAPS3 AZ
Conversion Factor:
1 /^g/m3 = 1.83 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
M9/m3
1.10 x 103
9.00 x 102
6.50 x 102
2.80 x 102
1.35 x 102
5.90 x 101
3.70 x 101
3 . 90
1.00
8.00 x 10'1
7.60 x 10'1
6.10 x 10'1
6.00 x 10"1
5.90 x 10"1
5.83 x 10"1
4.20 x 10'1
3.00 x 10'1
2.00 x 10'1
5.00 x 10"2
Time
1 hr.
1 yr.
24 hr.
24 hr.
1 yr .
1 yr .
24 hr.
1 yr .
Lifetime
1 yr.
1 yr.
1 yr .
1 yr .
1 yr .
70 yr.
1 yr.
1 yr.
1 yr .
70 yr.


2-107

-------
Footnotes to Trichloroethylene:

a   Causes unconsciousness.
b   Decreases visual  and motor skills.
c   A compound  is  considered  to be  cancer-causing  if  denoted by
   Ca.
d   Causes eye  irritation.
e   Intermediate-duration inhalation Minimal  Risk  Level  (MRL)  of
   11 mg/m3 derived from:  2730 mg/m3 duration-adjusted (16 hr/d,
   5/7 d) to 1300 mg/m3,  and divided by an uncertainty factor  of
   100  (10  for extrapolation to humans, and  10  for human
   variability) = 13 mg/m3.
f   Concentration  equivalent  to a 10"5  risk exposure.
                              2-108

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1 ,2,4-TRIMETHYLBENZENE
CAS Number 95-63-6
Exposure Limit Range
(Mg/m3)
8.80 x 10"1 to 2.45 x 105
APPLICABLE
DEFINITION
ACGIH TLV-TWA1
NIOSH TWA1
AALG19
RfC13
ODOR THRESHOLD11
Conversion Factor:
1 jig/m3 =1.90 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/zg/m3
2.45 x 105
1.25 x 10B
2.90 x 103
2 .00
8.80 x 10"1
Time
8 hr.
10 hr.
8 hr.
Lifetime
1 min.
2-109

-------
1 , 3 , 5-TRIMETHYLBENZENE
CAS Number 108-67-8
Exposure Limit Range
(pig/m3)
1.50 to 1.25 x 105
APPLICABLE
DEFINITION
NIOSH TWA1
RfC13
Conversion Factor:
1 /zg/m3 =2.00 x 10"4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
^ig/m3
1.25 x 105
1.50
Time
10 hr.
Lifetime
2-110

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2,4, 6-TRINITROTOLUENE
CAS Number 118-96-7
Exposure Limit Range
(/zg/m3)
2.00 x 10"1 to 5.00 x 105
APPLICABLE
DEFINITION
NIOSH IDLH1
SAAPS3 OK
SAAPS3 CT
SAAPS3 VA
SAAPS3 FL (Pinellas)
SAAPS3 TX
SAAPS3 FL (Pinellas)
SAAPS3 TX
NIOSH REL TWA67
ACGIH TLV1
SAAPS3 NV
SAAPS3 ND
RfG13,a
Conversion Factor:
NOT APPLICABLE
INHALATION EXPOSURE LIMITS
^g/m3
5.00 x 105
5.00 X 104
1.00 x 104
8 .30 x 103
5.00 x 103
5.00 x 103
1.20 x 103
5.00 x 102
5.00 x 102
5.00 x 102
1.20 x 101
5.00
2.00 x 10"1 Ca
Time
30 min.
24 hr.
8 hr.
24 hr.
8 hr.
30 min.
24 hr.
1 yr .
10 hr.
8 hr.
8 hr.
8 hr.
Lifetime
Footnotes to 2,4,6-Trinitrotoluene:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
                              2-111

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VINYL CHLORIDE
CAS Number 75-01-4
Exposure Limit Range
(^g/m3)
1.20 x 1CT2 to 1.30 x 10"
APPLICABLE
DEFINITION
ACGIH TLV-TWA1
OSHA TLV-STEL2
OSHA PEL TWA2
OSHA ACTION LEVEL2
SAAPS3 NV
SAAPS3 AZ
MD SCREENING LEVEL10
SAAPS3 TX
SAAPS3 VA
SAAPS3 OK
SAAPS3 FL
SAAPS3 CT, SD
SAAPS3 SC
SAAPS3 AZ
SAAPS3 FL
SAAPS3 TX
SAAPS3 PA
SAAPS3 MA
SAAPS3 LA
SAAPS3 MA, MI, NC, NY
SAAPS3 VT
SAAPS3 KS
SAAPS3 WA
RfC13
Conversion Factor:
1 jig/m3 = 3.83 x 10~" PPM @ 25°C
INHALATION EXPOSURE LIMITS
Mg/m3
1.30 x 104
1.30 x 104
2 .60 x 103
1.30 x 103
2.38 x 102
1.70 x 102
1.30 x 102
1.30 x 102
1.30 x 102
1.27 x 102
1.00 x 102
5.00 x 101
5.00 x 101
4.40 x 101
2.40 x 101
1.30 x 101
6.70
3.47
1.90
3 .80 x 10"1
2 .00 x 10"1
2.38 x 10"2
2 .30 x 10"2
2.00 x 10'2
Time
8 hr.
15 min.
8 hr.
8 hr.
8 hr.
1 hr.
8 hr.
30 min.
24 hr.
24 hr.
8 hr.
8 hr.
24 hr.
24 hr.
24 hr.
1 hr.
1 yr.
24 hr.
1 yr.
1 yr .
1 yr.
1 yr .
1 yr.
Lifetime
2-112

-------
VINYL CHLORIDE
CAS Number 75-01-4
Exposure Limit Range
(/zg/m3)
1.20 x 10"2 to 1.30 x 10"
APPLICABLE
DEFINITION
SAAPS3 FL
AIHA ERPG41
CONCENTRATION
FOR 1CT6 RISK4'3
SAAPS3 AZ
Conversion Factor:
1 /xg/m3 = 3.83 x 10'4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
//g/m3
1.40 x 10'2
1.30 x 10"2
1.20 x 10"2
1.20 x 10"2
Time
1 yr.
1 yr .
70 yr .
1 yr.
Footnotes to Vinyl Chloride:



a   Concentration  equivalent to  a  10"6 risk exposure
                              2-113

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VINYLIDENE CHLORIDE
CAS Number 75-35-4
Exposure Limit Range
(^g/m3)
LFC to 8.06 x 10"
APPLICABLE
DEFINITION
ACGIH STEL68
NRC EEGL9
ACGIH TLV TWA68
OSHA PEL TWA
SAAPS3 NV
SAAPS3 CT
SAAPS3 VA
SAAPS3 IN
SAAPS3 ND
SAAPS3 OK
SAAPS3 NC
SAAPS3 AZ
SAAPS3 NY
SAAPS3 PA
SAAPS3 TX
SAAPS3 MA
SAAPS3 KS
AALG19
NIOSH IDLH1'3
Conversion Factor:
1 /zg/m3 = 2.48 x 10"1 PPM @ 25°C
INHALATION EXPOSURE LIMITS
^g/m3
8.06 x 104
4.03 x 104
2.02 x 104
4.00 x 103
4.76 x 102
4 .00 x 102
3 .30 x 102
2.00 x 102
2 .00 x 102
1.98 x 102
1.20 x 102
1.10 x 102
6.67 x 101
2.40 x 101
4.00
1.08
2.00 X 10"2
1.00 x 10"2
Lowest Feasible
Concen. Ca
Time
15 min.
24 hr.
8 hr.
8 hr.
8 hr.
8 hr.
24 hr.
8 hr.
8 hr.
24 hr.
24 hr.
24 hr.
1 yr .
1 yr .
1 yr .
24 hr.
1 yr.
1 yr .
30 min.
Footnotes to Vinylidene Chloride:

a   A compound is considered to be cancer-causing if denoted by
   Ca.
                              2-114

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M-XYLENE
CAS Number 108-38-3
Exposure Limit Range
(Mg/m3)
3 .52 x 102 to 4.35 x 107
APPLICABLE
DEFINITION
NIOSH IDLH69
NIOSH/OSHA IDLH1
NIOSH CEILING69
ACGIH TLV TWA69,
OSHA PEL TWA69
NIOSH REL TWA69,
NIOSH/OSHA TWA1
ACGIH STEL69,
OSHA STEL69
SAAPS3 SC
AALG19
SAAPS3 NY
RfC13
SAAPS3 VA
ODOR THRESHOLD11
Conversion Factor:
1 //g/m3 = 2.27 x 1CT4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
4.35 x 107
4.35 x 106
8.82 X 10s
4.35 x 105
4.35 x 105
6.55 x 103
4.35 x 103
2.90 x 103
1.45 x 103
7.00 x 102
7.30 x 101
3 .52 x 102
Time
30 min.
30 min.
10 min.
8 hr.
10 hr.
15 min.
24 hr.
24 hr.
1 yr.
Lifetime
24 hr.
1 min .
2-115

-------
O-XYLENE
CAS Number 95-47-6
Exposure Limit Range
(/xg/m3)
7.30 x 101 to 4.41 x 107
APPLICABLE
DEFINITION
NIOSH/OSHA IDLH70
NIOSH OSHA IDLH1
NIOSH CEILING70
NIOSH OSHA TWA1,
ACGIH STEL70,
OSHA STEL70
ACGIH TLV TWA70
OSHA PEL TWA70
NIOSH REL TWA70,
NIOSH OSHA TWA1
SAAPS3 SC
SAAPS3 NY
RfC13
AALG19
SAAPS3 VA
Conversion Factor:
1 /zg/m3 = 2.27 x 1CT4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
Hg/m3
4.35 x 107
4.35 x 106
8.82 x 105
6.55 x 105
4 .35 x 105
4.35 x 105
4.35 x 103
1.45 x 103
7.00 x 102
2 . 90 x 102
7.30 x 101
Time
30 min.
30 min.
10 min.
15 min.
8 hr.
10 hr.
24 hr.
1 yr.
Lifetime
24 hr.
24 hr.
2-116

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P-XYLENE
CAS Number 106-42-3
Exposure Limit Range
(/-ig/m3)
5.70 x 101 to 4.35 x 107
APPLICABLE
DEFINITION
NIOSH IDLH71
NIOSH CEILING71
ACGIH STEL71,
OSHA STEL71
NIOSH REL TWA71
ACGIH TLV TWA71,
OSHA PEL TWA71
NIOSH/OSHA TWA1
SAAPS3 SC
SAAPS3 NY
RfC13
SAAPS3 VA
AALG19
Conversion Factor:
1 /^g/m3 = 2.27 x 10'4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
/ig/m3
4.35 x 107
8.70 x 105
6.55 x 105
4.35 x 105
4.35 x 10s
6.55 x 103
4.35 x 103
1.45 x 103
3.10 x 102
7.30 x 101
5.70 xlO1
Time
30 min.
10 min.
15 min.
10 hr.
8 hr.
10 hr.
24 hr.
1 yr .
Lifetime
24 hr.
24 hr.
2-117

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TOTAL XYLENES
CAS Number 1330-20-7
Exposure Limit Range
(/xg/m3)
1. 18 x 101 to 4.41 x 107
APPLICABLE
DEFINITION
NIOSH IDLH72
NIOSH CEILING72
ACGIH STEL72
NIOSH REL1
OSHA PEL TWA2
ACGIH TLV-TWA1
EEGL9
SAAPS3 MA
SAAPS3 NC
SAAPS3 OK
SAAPS3 NV
SAAPS3 WI
SAAPS3 LA
SAAPS3 SD
SAAPS3 CT
RfC13
SAAPS3 ND
SAAPS3 AZ
AALG19
SAAPS3 FL
SAAPS3 MI
SAAPS3 ND
SAAPS3 TX
SAAPS3 AZ
Conversion Factor:
1 /ig/m3 = 2.30 x 10"" PPM @ 25°C
INHALATION EXPOSURE LIMITS
/xg/m3
4.41 x 107
8.70 x 105
6.55 x 105
4 .35 x 10s
4.35 x 105
4.34 x 105
2.00 x 105
6.50 x 104
6.50 x 104
4.34 x 104
1.04 x 104
1.04 x 104
1.03 x 104
8.70 x 103
8.68 x 103
7.00 x 103
6.51 x 103
5.50 x 103
5.20 x 103
4 .40 x 103
4 .40 x 103
4 .34 x 103
3 .70 x 103
3 .50 x 103
Time
30 min.
10 min.
15 min.
10 hr.
8 hr.
8 hr.
24 hr.
15 min.
min .
24 hr.
8 hr.
24 hr.
8 hr.
8 hr.
8 hr.
Lifetime
1 hr.
1 hr.
24 hr.
8 hr.
1 hr.
8 hr.
30 min.
24 hr.
2-118

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TOTAL XYLENES
CAS Number 1330-20-7
Exposure Limit Range
(^g/m3)
1. 18 x 101 to 4.41 x 107
APPLICABLE
DEFINITION
SAAPS3 NC
SAAPS3 IN
SAAPS3 NY
SAAPS3 WA
SAAPS3 FL
SAAPS3 VT
SAAPS3 RI
SAAPS3 TX
ODOR THRESHOLD11
SAAPS3 MA
SAAPS3 MA
SAAPS3 MA
SAAPS3 MA
Conversion Factor:
1 p.g/m* = 2.30 x 1CT4 PPM @ 25°C
INHALATION EXPOSURE LIMITS
//g/m3
2 . 70 x 103
2.17 x 103
1.45 x 103
1.45 x 103
1.04 x 103
1.04 x 103
7.00 x 102
4.35 x 102
3 .50 x 102
3 .00 x 102
3 .00 x 102
1.18 x 101
1.18 x 101
Time
24 hr.
8 hr.
1 yr .
24 hr.
24 hr.
1 yr .
24 hr.
1 yr .
1 min .
24 hr.
1 yr .
24 hr.
1 yr .
2-119

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ZINC
CAS Number 7440-66-6
Exposure Limit Range
(Mg/m3)
6 . 55 to 4.80 x 10s
APPLICABLE
DEFINITION
NIOSH IDLH1
NIOSH REL TWA
CEILING73
NIOSH TLV TWA73
PEL STEL73
NIOSH REL STEL1
ACGIH TLV STEL1
ACGIH TLV TWA73
OSHA STEL73
ACGIH TLV TWA73,
NIOSH REL TWA73
OSHA PEL TWA73
ACGIH TLV STEL73,
NIOSH REL STEL73
ACGIH TLV TWA73,
NIOSH REL TWA73
NIOSH OSHA TWA1
RfC13
OSHA PEL TWA73
SAAPS3 MT
Conversion Factor:
Not Applicable
INHALATION EXPOSURE LIMITS
/xg/m3
4 .80 x 106
(chloride)
15.00 x 103
(oxide)
1.00 x 104
(oxide dust)
1.00 x 104
1. 00 x 104
(oxide fume)
10.00 x 103
(oxide fume)
10 .00 x 103
(oxide dust)
5 . 00 x 103
(chloride)
5 . 00 x 103
(oxide fume)
5.00 x 103
(oxide)
2.00 x 103
(chloride)
1. 00 x 103
(chloride)
1.00 x 103
(chloride)
1.00 x 103
1. 00 x 103
(chloride)
3 . 93 x 101
Time
30 min .
15 min.
15 min.
15 min.
15 min.
15 min.
10 hr.
15 min.
10 hr.
8 hr.
15 min.
10 hr.
10 hr.
Lifetime
8 hr.
24 hr.
2-120

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                           ZINC
                     CAS Number 7440-66-6
 Exposure Limit  Range
        (pig/m3)
    6.55 to 4.80 x  106
   Conversion Factor:

     Not Applicable
                              INHALATION EXPOSURE LIMITS
      APPLICABLE
      DEFINITION
                    Time
SAAPS3 MT
6.55
1 yr
                            2-121

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APPENDIX A:




 REFERENCES

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REFERENCES
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
Title
NIOSH Pocket Guide to Chemical Hazards
29 CFR 1910 Part Z
NATICH Data Base
Calculated from the Risk-Based Concentration Table, Fourth
Quarter 1993, developed by Dr. Roy Smith, EPA Senior
Toxicologist , from the IRIS database.
Toxicolocrical Profile for Aroclor-1260 . Department of Health &
Human Services.
Toxicolocrical Profile for Arsenic. Department of Health &
Human Services.
Toxicolocrical Profile for Barium. Department of Health & Human
Services .
Toxicolocrical Profile for Benzene. Department of Health &
Human Services.
Committee on Toxicology, National Research Council. Criteria
and Methods for Preparing Emercrency Exposure Guidance Level
(EEGL) , Short-Term Public Emercrency Guidance Level (SPEGL) ,
and Continuous Exposure Guidance Level (CEGL) Documents.
National Academy Press, Washington, D.C., 1986.
Maryland Department of the Environment . Overview of
Marvland's Proposed Air Toxics Regulations , June 1988.
Fazzalari, F.A. Compilation of Odor and Taste Threshold
Values Data. 1978. American Society for Testing and Materials.
Toxicolocrical Profile for Benzo(a) Pvrene . Department of
Health & Human Services.
Calculated from the Risk-Based Concentration Table, Fourth
Quarter 1993, developed by Dr. Roy Smith, EPA Senior
Toxicologist, from the HEAST database.
Toxicolocrical Profile for Beryllium. Department of Health &
Human Services .
Toxicoloqical Profile for Cadmium. Department of Health &
Human Services .
Toxicoloqical Profile for Carbon Disulfide. Department of
Health & Human Services .
Toxicoloqical Profile for Carbon Tetrachloride . Department of
Health & Human Services .
A-l

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REFERENCES
Number
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Title
CAPCOA. January 1991. Air Toxics "Hot Spots" Program: Risk
Assessment Guidelines. Sacramento, CA: AB 2588 Risk
Assessment Committee of the California Air Pollution Control
Officers Association.
Calabrese, E.J., and Kenyon, E.M. 1991. Air Toxics and Risk
Assessment . Chelsea, MI. Lewis Publishers.
Toxicoloqical Profile for Chlordane . Department of Health &
Human Services .
Toxicolocrical Profile for Chlorobenzene . Department of Health
& Human Services .
US EPA Technical Guidance for Hazards Analysis, Emergency
Planning for Extremely Hazardous Substances, 1987.
Toxicoloaical Profile for Chloroform. Department of Health &
Human Services .
Toxicoloqical Profile for Chromium (VI) . Department of Health
& Human Services.
Toxicoloqical Profile for p,p'-DDT, p,p'-DDE, p.p'-DDD.
Department of Health & Human Services.
Toxicoloqical Profile for 1 , 2-Dibromoethane . Department of
Health & Human Services .
Toxicoloqical Profile for 1 , 4 -Dichlorobenzene . Department of
Health & Human Services .
Toxicoloqical Profile for 1 , 1-Dichloroethane . Department of
Health & Human Services .
Toxicoloqical Profile for 1 , 2-Dichloroethane . Department of
Health & Human Services .
Toxicoloqical Profile for 1 , 1-Dichloroethene . Department of
Health & Human Services .
Calculated from the Risk-Based Concentration Table, Fourth
Quarter 1993, developed by Dr. Roy Smith, EPA Senior
Toxicologist, from the EPA-ECAO.
Toxicoloqical Profile for Dichloroethvl Ether. Department of
Health & Human Services .
Toxicoloqical Profile for C-l , 2-Dichloroethvlene . Department
of Health & Human Services .
A-2

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REFERENCES
Number
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Title
Toxicoloqical Profile for Dichloromethane . Department of
Health & Human Services.
Toxicoloqical Profile for 1,2 Dichloropropane . Department of
Health & Human Services.
Toxicoloqical Profile for C-l , 3 -Dichloropropvlene . Department
of Health & Human Services.
Toxicoloqical Profile for Ethvlbenzene . Department of Health &
Human Services.
Toxicoloqical Profile for Hexachlorobenzene . Department of
Health & Human Services .
Toxicoloqical Profile for Hexachloro-1 , 3 -Butadiene . Department
of Health & Human Services .
Toxicoloqical Profile for Hexahydro-1 , 3 , 5-Trinitor-l , 3 , 5-
Triazine (RDXL. Department of Health & Human Services.
American Industrial Hygiene Association (AIHA) . Concepts and
Procedures for the Development of Emerqencv Response Plannincr
Guidelines (ERPGs) . 1989.
Toxicoloqical Profile for Hexane . Department of Health & Human
Services .
Toxicoloqical Profile for Hvdroqen Fluoride. Department of
Health & Human Services.
Toxicoloqical Profile for Lead. Department of Health & Human
Services.
Toxicoloqical Profile for Manqanese . Department of Health &
Human Services.
Toxicoloqical Profile for Mercury. Department of Health &
Human Services .
Toxicoloqical Profile for Methyl Chloride. Department of
Health & Human Services .
Toxicoloqical Profile for Methyl Chloroform. Department of
Health & Human Services .
Toxicoloqical Profile for Methylene Chloride. Department of
Health & Human Services.
Toxicoloqical Profile for Methyl Ethyl Ketone . Department of
Health & Human Services .
A-3

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REFERENCES
Number
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
Title
U.S. Environmental Protection Agency. Integrated Risk
Information System (IRIS) on Methyl tert-Butyl Ether.
Environmental Criteria and Assessment Office, Office of Health
and Environmental Assessment, Office of Research and
Development, Cincinnati, OH. 1993.
Toxicoloaical Profile for Naphthalene. Department of Health &
Human Services .
Toxicoloaical Profile for N-Nitrosodiphenylamine . Department
of Health & Human Services.
Toxicolocrical Profile for Pentachlorophenol . Department of
Health & Human Services .
Toxicoloqical Profile for Polychlorinated Biphenvls (PCB) .
Department of Health & Human Services.
Registry of Toxic Effects of Chemical Substances (RTECs) .
Department of Health & Human Services; Superintendent of
Documents 8E20-7112.
Toxicolocrical Profile for Styrene . Department of Health &
Human Services.
Toxicoloqical Profile for 2 , 3 , 7 , 8-Tetra-Chlorodibenzo-p-
Dioxin. Department of Health & Human Services.
Toxicolocrical Profile for 1 , 1 , 2 , 2-Tetrachloroethane .
Department of Health & Human Services.
Toxicolocrical Profile for Tetrachloroethvlene . Department of
Health & Human Services.
Toxicolocrical Profile for Tetryl . Department of Health & Human
Services .
Toxicolocrical Profile for Toluene. Department of Health &
Human Services .
Toxicolocrical Profile for Toxaphene . Department of Health &
Human Services .
Toxicolocrical Profile for 1 , 1 , 2-Trichloroethane . Department of
Health & Human Services .
Toxicolocrical Profile for Trichloroethylene . Department of
Health & Human Services.
A-4

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REFERENCES
Number
66
67
68
69
70
71
72
73
74
Title
Appendix C of EPA' s guidance document "Risk Assessment
Guidance for Superfund: Volume I - Human Health Evaluation
Manual (Part C, Risk Evaluation of Remedial Response,
Washington, B.C. October 1991)
Toxicoloqical Profile for 2 , 4 , 6 -Trinitrotoluene . Department of
Health & Human Services.
Toxicoloqical Profile for Vinylidene Chloride. Department of
Health & Human Services.
Toxicolocfical Profile for M-Xvlene. Department of Health &
Human Services .
Toxicoloqical Profile for 0-Xylene. Department of Health &
Human Services.
Toxicoloqical Profile for P-Xylene. Department of Health &
Human Services .
Toxicoloqical Profile for Total Xylenes . Department of Health
& Human Services .
Toxicoloqical Profile for Zinc. Department of Health & Human
Services .
U.S. Environmental Protection Agency. Technical Background
Document to Support Rulemakinq Pursuant to the Clean Air Act-
Section 112 (q) . Rankinq of Pollutants with Respect to Hazard
to Human Health. EPA-450/3-92-010 . Emissions Standards
Division, Office of Air Quality Planning and Standards,
Research Triangle Park, NC. 1994.
A-5

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                APPENDIX B:
LISTING OF AIR POLLUTANTS AND THEIR SYNONYMS

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AIR POLLUTANTS AND  THEIR SYNONYMS
AIR TOXIN
ALDRIN
AROCLOR-1260
ARSENIC
BARIUM
BENZENE
BENZO (A) PYRENE
BENZYL CHLORIDE
BERYLLIUM
CADMIUM
CARBON DISULFIDE
SYNONYMS
1,4:5, 8 -DIMETHANONAPHTHALENE ,
1,2,3,4, 10,10-HEXACHLORO-1,4,4A,5, 8, 8A-
HEXAHYDRO, (1ALPHA, 4 ALPHA, 4ABETA, 5 ALPHA,
8ALPHA, 8ABETA) ; 1,4:5,8-
DIMETHANONAPHTHALENE , 1,2,3,4,10,10-
HEXACHLORO- 1 , 4 , 4 A, 5 , 8 , 8A-HEXAHYDRO,
ENDO , EXO ; HEXACHLOROHEXAHYDRO - ENDO - EXO -
DIMETHANONAPHTHALENE; NCI-C00044; ENT-15,
949; 1,2,3,4, 10,10 -HEXACHLORO-
1 , 4 , 4A, 5 , 8 , 8A-HEXAHYDRO-1 , 4 -ENDO, EXO- 5 , 8 -
DIMETHANONAPHTHALENE; (1R, 4S, 5S, 8R) -
1,2,3,4,10, 10-HEXACHLORO-1,4,4A,5, 8, 8A-
HEXAHYDRO- 1 ,4:5,8-01 METHANONAPHTHALENE ,
NOT LESS THAN 95%; HHDN; COMPOUND- 118 ; SD-
2794; ALDROSOL; ALDOCIT; ALDRINE; ALDRITE;
KORTOFIN; OCTALENE ; SEEDRIN; TATUZINHO;
TIPULA; ALDREX-40
PCB-1260; POLYCHLORINATED BIPHENYL MIXTURE
WITH 60% CHLORINE
ARSENIC -BLACK; ARSENIC- 75; COLLOIDAL-
ARSENIC; GRAY-ARSENIC; METALLIC -ARSENIC
ACETIC ACID; BARIUM SALT; BARIUM D I ACETATE;
BARIUM ACETATE MONOHYDRATE ; ELEMENTAL
BARIUM; BARIUM ION; BARIUM, ALLOYS,
NONPYROPHORIC; BARIUM, METAL, NON-
PYROPHORIC
ANNULENE; BENZOL; BENZOLE; COAL NAPTHA;
CYCLOHEXATRIENE; PHENE; PHENYL HYDRIDE;
PYROBENZOL ; PYROBENZOLE
3,4-BENZ (A) PYRENE; BENZ- (A) PYRENE; BAP;
BP
ALPHA- CHLOROTOLUENE ; CHLOROMETHYLBENZENE ;
BERYLLIUM-METALLIC; BERYLLIUM- 9 ; GLUCINIUM;
GLUCINUM; BERYLLIUM-DUST; BERYLLIUM,
-METAL -POWDER
C- I -77180; COLLOIDAL- CADMIUM
CARBON- BISULFIDE; CARBON D I SULPHIDE; CARBON
SULFIDE; CARBON SULPHIDE; DITHIOCARBONIC
ANHYDRIDE
               B-l

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                   AIR POLLUTANTS AND THEIR SYNONYMS
        AIR TOXIN
                  SYNONYMS
  CARBON  TETRACHLORIDE
CARBON-CHLORIDE; CARBON-CHLORIDE (CCL4);
CARBON-TET; ENT-4;705; METHANE-
TETRACHLORIDE; METHANE, TETRACHLORO;
PERCHLOROMETHANE;  R-10; TETRACHLOORMETAAN;
TETRACHLOROCARBON; TETRACHLOROMETHANE;
BENZINOFORM; UNIVERM; VERMOESTRICID;
NECATORINA; NECATORINE; FASCIOLIN;
FLUKOIDS; TETRAFINOL; TETRAFORM; TETRASOL;
CARBONA; FREON-10; HALON-104
        CHLORDANE
4,7-METHANO-1H-INDENE,  1,2,4,5,6,7,8,8-
OCTACHLORO-2,3,3A,4,7,7A-HEXAHYDRO;  4,7-
METHANOINDAN,  1,2,4,5,6,7,8,8-OCTACHLORO-
3A,4,7,7A-TETRAHYDRO;  OCTACHLORO-4,7-
METHANOHYDROINDANE;  OCTACHLORO-4,7 -
METHANOTETRAHYDROINDANE;
OCTACHLORODIHYDRODICYCLOPENTADIENE;
O CTACHLORO-TETRAHYDRO-METHANOINDAN;  ENT -
9,932; ENT-9932; NCI-C00099;  ENT 25,552-X;
1,2,4,5,6,7,8,8-OCTACHLORO-4,7-METHANO-
3A,4,7,7A-TETRAHYDROINDANE;
1,2,4,5,6,7,8,8-OCTACHLORO-4,7-METHANE-
3A,4,7,7A-TETRAHYDROINDANE;  1068;  VELSICOL-
1068;  ASPON-CHLORDANE;  CD-68;  CHLORINDAN;
CORTILAN-NEU;  DOWCHLOR; HCS-3260;  M-140; M-
410; OCTA-KLOR; OKTATERR;  SYNKLOR; TAT-
CHLOR-4; TOPICLOR;  TOXICHLOR;  INTOX-8
      CHLOROBENZENE
BENZENE-CHLORIDE; BENZENE,  CHLORO;
CHLORBENZENE; CHLOROBENZOL;  CHLORBENZOL;
MONOCHLORBENZENE; MONOCHLOROBENZENE;
PHENYL-CHLORIDE; NCI-C54886;  CASWELL-NO-
183A; EPA-PESTICIDE-CHEMICAL-CODE-056504- ;
MCB-; CP-27;  I-P-CARRIER-T-40;  TETROSIN-SP
        CHLOROFORM
FORMYL-TRICHLORIDE; METHANE-TRICHLORIDE;
METHANE-TRICHLORO; METHENYL-CHLORIDE;
METHENYL-TRICHLORIDE;  METHYL-TRICHLORIDE;
NCI-C02686; TCM; TRICHLOROFORM;
TRICHLOROMETHANE;  FREON-20; R-20
      CHROMIUM  (VI)
HEXAVALENT CHROMIUM;  CHROMIC ACID;  CHROMIUM
TRIOXIDE; CHROMIC ANHYDRIDE; LEAD CHROMATE;
ZINC CHROMATE
2,4-DICHLOROPHENOXYACETIC
       ACID (2,4-D)
DICHLOROPHENOXYACETIC  ACID;  2,4,-
DICHLOROPHEOXYACETIC ACID;  2,4-D
                                  B-2

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AIR POLLUTANTS AND  THEIR SYNONYMS
AIR TOXIN
DDT
1 , 2 -DIBROMOETHANE
1 , 4 -DICHLOROBENZENE
M- D I CHLOROBENZENE
O - DI CHLOROBENZENE
SYNONYMS
1,1, l-TRICHLORO-2 , 2-BIS (P-CHLOROPHENYL)
ETHANE; 2, 2 -BIS (P-CHLOROPHENYL) -1 , 1 , 1-
TRICHLOROETHANE ; 4,4' -DDT; 4,4'-
D I CHLOROD I PHENYLTR I CHLOROETHANE ; ETHANE ,
1, 1, l-TRICHLORO-2, 2-BIS (4 -CHLOROPHENYL) ;
ETHANE, 1,1, l-TRICHLORO-2 ,2 -BIS (P-
CHLOROPHENYL ) ; P , P ' - DDT ; P , P ' -
D I CHLOROD I PHENYLTR I CHLOROETHANE ;
ALPHA, ALPHA- BIS (P-CHLOROPHENYL) -
BETA, BETA, BETA-TRICHOROETHANE; 1,1-BIS- (P-
CHLOROPHENYL) -2 , 2 , 2-TRI CHLOROETHANE ;
D I PHENYLTR I CHLOROETHANE; TRICHLOROBIS (4-
CHLOROPHENYL) ETHANE; 1 , 1 , l-TRICHLORO-2 , 2 -
DI (4 -CHLOROPHENYL) -ETHANE; NCI-C00464; ENT-
1506; DICOPHANE; CHLOROPHENOTHANE ; 1,1'-
(2,2,2- TRI CHLOROETHYLI DENE ) B I S ( 4 -
CHLOROBENZENE) ; AAVERO- EXTRA; ANOFEX ;
ZERDANE; SANTOBANE; PENTECH; NEOCID;
NEOCIDOL; GESAROL; ARKOTINE; PENTACHLORIN;
AGRITAN; AZOTOX; AZOTOX M-33; BOSAN-SUPRA;
BOVIDERMOL; CHLOFENOTAN; CHLORPHENOTHAN ;
CHLORPHENOTOXUM; CITOX; CLOFENOTANE ;
DEOVAL; DETOX; DETOXAN; DIBOVIN; DODAT ;
DYKOL; ESTONATE; GESAFID; IVORAN; MUTOXAN;
NEOCIDOL- (SOLID) ; PARACHLOROCIDUM; PEB1;
PENTICIDUM; TAFIDEX; EPA-PESTICIDE-CODE-
029201; CASWELL-NO-308
ETHYLENE DIBROMIDE; ETHYLENE BROMIDE,
GLYCOL DIBROMIDE
BENZENE, 1,4-DICHLORO; BENZENE, P-DICHLORO;
D I CHLOROBENZENE, -PARA, -SOLID; P-
CHLOROPHENYL CHLORIDE; P -DI CHLOROBENZENE ;
P-DICHLOROBENZOL; PDB ; PARAD I CHLOROBENZENE ; :
PARADICHLOROBENZOL; NCI-C54955; CASWELL-NO-
632; A13-0050; EPA-PESTICIDE-CHEMICAL-CODE-
061501; PARADICHLOROBENZOL; PARAMOTH; DI-
CHLORICIDE; PARAD I; PERSIA- PERAZOL;
SANTOCHLOR; PARADOW; PARAMOTH -r EVOLA;
PARAZENE
1 , 3 -DICHLOROBENZENE ; META-DICHLOROBENZENE
1, 2 -DICHLOROBENZENE; ORTHO- DICHLOROBENZENE ;
O-DICHLOROBENZOL; 0-DCB
               B-3

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                 AIR POLLUTANTS  AND  THEIR SYNONYMS
      AIR TOXIN
                  SYNONYMS
  1,1-DICHLOROETHANE
ALPHA ALPHA-DICHLOROETHANE; ASYMMETRICAL
DICHLOROETHANE; CHLORINATED HYDROCLORIC
ETHER; 1,1-DICHLORO-(9CI); 5-
DICHLOROETHANE; DUTCH OIL; ETHANE;
ETHYLIDENE-CHLORIDE; 1,1-ETHYLIDENE
DICHLORIDE; ETHYLIDENE-DICHLORIDE
  1,2-DICHLOROETHANE
1,2 -BICHLOROETHANE; 1,2 -DICHLORETHANE;  1,2-
ETHYLENE DICHLORIDE; ALPHA,  BETA-
DICHLOROETHANE; RY DICHLORO-1,2-ETHANE;
ENT-1,656; ETHANE-DICHLORIDE;  ETHANE, 1,2-
DICHLORO; ETHYLENE-CHLORIDE; ETHYLENE-
DICHLORIDE; GLYCOL-DICHLORIDE; NCI-COO511;
SYM-DICHLOROETHANE; FREON-150; BORER-SOL;
BROCIDE; DESTRUXOL BORER-SOL;  DI-CHLOR-
MULSION; DICHLOR-MULSION; DICHLOREMULSION;
DUTCH-LIQUID; DUTCH-OIL; GRANOSAN;  BETA-
DICHLOROETHANE
  1,1-DICHLOROETHENE
1,1-DCE; 1,1-DICHLOROETHYLENE;  ASYM-
DICHLOROETHYLENE; ETHENE,  1,1-DICHLORO;
ETHYLENE, 1,1-DICHLORO; NCI-C54262;  VDC;
VINYLIDENE-CHLORIDE, MONOMER; VINYLIDENE-
CHLORIDE (II); VINYLIDENE-CHLORIDE
(INHIBITED); VINYLIDENE-DICHLORIDE;
VINYLIDINE-CHLORIDE; AS-DICHLOROETHYLENE;
VC
 DICHLOROETHYL ETHER
BIS(CHLOROETHYL) ETHER;  2,2-DICHLORODIETHYL
ETHER; 2,2-DICHLOROETHYL ETHER
C-1,2 -DICHLOROETHYLENE
         (CIS)
ASYMMETRICAL DICHLOROETHANE;  ETHYLIDENE
CHLORIDE; 1,1-ETHYLIDENE  DICHLORIDE;
ACETYLENE DICHLORIDE; CIS-ACETYLENE
DICHLORIDE; TRANS-ACETYLENE DICHLORIDE
   DICHLOROMETHANE
METHYLENE CHLORIDE; METHYLENE  DICHLORIDE
  1,2-DICHLOROPROPANE
1,2-DICHLORO-1,2-PROPANE;  DICHLOROPROPANE;
PROPYLENE CHLORIDE;  PROPYLENE DICHLORIDE
 1,3-DICHLOROPROPYLENE
      (CIS/TRANS)
 (Z)-1,3-DICHLOROPROPENE;  1-PROPENE,  1,3-
DICHLORO,  (Z); CIS-1,3-DICHLORO-1-PROPENE;
CIS-1,3-DICHLOROPROPYLENE;  PROPENE,  1,3-
DICHLORO,  (Z); TELONE-II;  CIS-DCP
                                 B-4

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AIR POLLUTANTS AND THEIR  SYNONYMS
AIR TOXIN
DIELDRIN

2 , 4 -DINITROTOLUENE
ETHYLBENZENE
ETHYL CHLORIDE
FORMALDEHYDE
FREON 11
SYNONYMS
1,2,3,4,10, 10-HEXACHLORO-6 , 7-EPOXY-
1,4,4A,5, 6,7,8, 8A-OCTA-HYDRO-ENDO, EXO
1,4:5, 8 -DIMETHANONAPHTHALENE ;
1,2,3,4,10, 10 -HEXACHLORO-EXO- 6 , 7 -EPOXY-
1,4,4A,5, 6,7, 8,8A-OCTAHYDRO-1,4-ENDO,EXO-
5 , 8 -DIMETHANONAPHTHALENE ; 1,4:5,8-
DIMETHANONAPHTHALENE , 1,2,3,4,10,10-
HEXACHLORO-6, 7-EPOXY-l , 4 , 4A, 5 , 6 , 7 , 8 , 8A-
OCTAHYDRO, ENDO, EXO; 2,7:3 , 6-DIMETHANONAPHTH
(2, 3-B) OXIRENE, 3 ,4,5,6,9, 9-HEXACHLORO-
1A,2,2A,3, 6,6A,7,7A-OCTAHYDRO,
(1AALPHA, 2BETA, 2AALPHA, 3BETA, 6BETA, 6AALPHA,
7BETA, 7AALPHA) ; ENT-16225; EXO-DIELDRIN;
HEOD; HEXACHLOROEPOXYOCTAHYDRO-ENDO, EXO-
DIMETHANONAPHTHALENE; NCI-COO124 ;
1,8,9,10,11, ll-HEXACHLORO-4 , 5 -EXO EPOXY-
2,3-7, 6 -ENDO- 2, 1-7, 8-EXO-TETRACYCLO ( 6 .2.1.1
3,6 .0 2,7) DODEC-9-ENE; COMPOUND - 4 9 7 ;
3,4,5,6, 9,9-HEXACHLORO-lA,2,2A, 3,6, 6A, 7, 7A-
OCTAHYDRO-2, 7:3, 6-DIMETHANONAPHTH [2 , 3-B]
OXIRENE; AI3-16225; CASWELL-NO-333 ; ENT-
16, 225; EPA-PESTICIDE-CHEMICAL-CODE-045001;
3,4,5,6,9, 9-HEXACHLORO-lA,2,2A, 3,6, 6A, 7, 7A-
OCTAHYDRO-2, 7:3, 6 -DIME-THANONAPHTH (2 , 3-
B) OXIRENE; SD-3417; ENDO, EXO-3 , 4 , 5 , 6 , 9 , 9-
HEXACHLORO-1A, 2 , 2A, 3 , 6 , 6A, 7 , 7A-OCTAHYDRO-
2,7:3, 6 -DIMETHENAPTH (2, 3-B) OXIRENE
DINITROTOLUENE; DINITROTOLUOL; DNT;
METHYLDINITROBENZENE
BENZENE, ETHYL; EB; ETHYL - BENZENE ;
ETHYLBENZOL; PHENYLETHANE ; NCI -C5 63 93
CHLOROETHANE ; HYDROCHLORIC ETHER;
MONOCHLOROETHANE ; MURIATIC ETHER
BFV; FANNOFORM; FORMALDEHYDE -SOLUTION ;
FORMALDEHYDE , - GAS ; FORMAL I N ; FORMAL I TH ;
FORMIC -ALDEHYDE; FORMOL; FYDE; IVALON;
LYSOFORM; METHANAL; METHYL -ALDEHYDE ;
METHYLENE-OXIDE; MORBICID; OXOMETHANE ;
OXYMETHYLENE ; SUPERLYSOFORM; DORMOL
FLUOROTRICHLOROMETHANE ; FLUOROCARBON- 11 ;
TRICHLOROFLUOROMETHANE; REFRIGERANT 11;
TRICHLOROMONOFLUOROMETHANE ;
MONOFLUOROTRI CHLOROMETHANE
               B-5

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AIR POLLUTANTS AND THEIR  SYNONYMS
AIR TOXIN
FREON 12
HEPTACHLOR


HEXACHLOROBENZENE
HEXACHLORO-1 , 3 -BUTADIENE
HEXAHYDRO-1 , 3 , 5-TRINITRO-
1,3,5-TRIAZINE (RDX)
HEXANE
HYDROGEN FLUORIDE
LEAD
MANGANESE COMPOUNDS AND
FUME (AS MN)
MERCURY
METHYL CHLORIDE
SYNONYMS
DICHLORODICHLOROMETHANE; PROPELLANT 12;
DICHLORODIFLUOROMETHANE; FLUOROCARBON-12 ;
HALON 122; REFRIGERANT 12
3-CHLOROCHLORDENE; 4, 7-METHANO-1H- INDENE ,
1,4,5,6,7,8, 8-HEPTACHLORO-3A,4, 7, 7A-
TETRAHYDRO; 4 , 7 -METHANO INDENE,
1,4,5,6,7,8, 8 -HEPTACHLORO- 3A, 4,7, 7A-
TETRAHYDRO; ALPHA-DICYCLOPENTADIENE,
3,4,5,6,7,8, 8A-HEPTACHLORO ;
DICYCLOPENTADIENE, 3,4, 5 , 6 , 7 , 8 , 8A-
HEPTACHLORO ; NCI-COO180; ENT-15,152; E-
3314; AAHEPTA; AGROCERES; GPKH; H-34;
HEPTA; HEPTACHLORANE; HEPTAGRAN; HEPTAMUL;
RHODIACLOR; VELSICOL-104 ; BASAKLOR;
HEPTAGRANOX; HEPTAMAK; HEPTASOL; HEPTOX;
SOLEPTAX; GOLD CREST H-60, TERMIDE
PERCHLOROBENZENE ; HEXACHLOROBENZOL; HCB ;
BENZENE ; HEXACHLORO - ESACHLOROBENZENE
BIETHYLENE; BIVINYL; 1,3 BUTADIENE;
BUTADIENE; A, A -BUTADIENE; BUTA-1 , 3 -DIENE ;
DIVINYL; ERYTHRENE ; PYRROLYLENE ; TRANS -
BUTADIENE; VINYLETHYLENE
CYCLOTRIMETHYLENE TRINITRAMINE ; 1,3,5-
TRINITRO-1, 3 , 5-TRIAZACYCLOHEXANE
TRIMETHYLENETRINITRAMINE ; CYCLONITE ;
HEXAHYDRO-1, 3, 5-TRINITRO-S-TRIAZINE
N-HEXANE; HEXYL HYDRIDE; NORMAL - HEXANE
ANHYDROUS HYDROGEN FLUORIDE; AQUEOUS
HYDROGEN FLUORIDE; HF-A
LEAD-METAL; PLUMBUM; CI -PIGMENT -METAL- 4 ;
CI -77575; KS-4; LEAD-FLAKE; LEAD-S2; PB-S
100
MANGANESE METAL; MANGANESE- 5 5 COLLOIDAL
MANGANESE
COLLOIDAL MERCURY; METALLIC MERCURY;
QUICKSILVER
CHLOROMETHANE ; MONOCHLOROMETHANE

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AIR POLLUTANTS AND THEIR SYNONYMS
AIR TOXIN
METHYL CHLOROFORM
METHYLENE CHLORIDE
METHYL ETHYL KETONE
METHYL ISOBUTYL KETONE
METHYL ISOCYANATE
METHYL TERT- BUTYL ETHER
(MTBE)
NAPHTHALENE
N-NITROSODIMETHYLAMINE
N-NITROSOD'IPHENYLAMINE
OCTAHYDRO 1,3,5,7-
TETRANITRO- 1 ,3,5,7-
TETRACCINE (HMX)
PENTACHLOROPHENOL
SYNONYMS
1,1, 1-TRICHLOROETHANE;
METHYLTRICHLOROMETHANE ; TRICHLOROETHANE ;
TRIELENE; CHLOROFORM, METHYL; ETHANE,
1, 1,1-TRICHLORO; TCEA; AI3-02061; CASWELL-
NO-875; ALPHA- RICHLOROETHANE; AEROTHENE-TT;
ALGYLEN; ALPHA- T; BALTANA; CF-2;
CHLOROETHENE ; CHLOROETHANE -NU ; CHLOROTENE ;
CHLOROTHANE - NU ; CHLOROTHENE - SM ;
CHLOROTHENE-VG; CHLORTEN; CHLORTHANE - NU ;
CHLORYLEN; GEMALGENE ; GENKLENE; ICI-CF 2 ;
INHIBISOL; DOWCLENE-LS ; CHLOROTHENE -
( INHIBITED) ; CHLOROTHENE -NU; SOLVENT- 111;
TRI; TRICHLORAN; NCI-C04626; AEROTHENE; MM
DCM; METHANE; DICHLORO; METHYLENUnM-
CHLORATUM; NCI-C50102; DICHLOROMETHANE
2-BUTANONE; MEK; METHYL ACETONE; ETHYL
METHYL KETONE
HEXONE; ISOBUTYL METHYL KETONE; 4 -METHYL 2-
PENTANONE; MIBK
METHYL ESTER OF ISOCYANIC ACID; MIC
METHYL T- BUTYL ETHER; TERT -BUTYL METHYL
ETHER; 2-METHOXY-2 METHYLPROPANE ; MTBE
NAPHTHALIN; TAR CAMPHOR; WHITE TAR
NDMA; NITROSO-N,N-DIMETHYLAMINE; N,N-
DIMETHYLNITROSAMINE ; DIMETHYLNITROSAMINE ;
DMNA; N-METHYL-N-NITROSO-METHANAMINE
BENZENAMINE; DIPHENYLNITROSAMINE; NDPA;
DIPHENYLAMINE, N-NITROSAMINE; N-NITROSO-N-
PHENYLANILINE; DIPHENYL-N-NITROSAMINE ; N,N-
DIPHENYLNITROSAMINE; NDPHA; NITROUS
DIPHENYLAMIDE
1,3, 5-TETRANITRO-l,3,5,7-
TETRAAZOCYCLOOCTANE ;
CYCLOTETRAMETHYLENETRANITRAMINE ; OCTOGEN ;
TETRAMETHYLENETETRANITRANINE ; OCTAHYDRO -
1,3,5, 7-TETRAZOCINE; AND OTHERS
2,3,4,5,6- PENTACHLOROPHENOL ; PCP ; PENTA ;
PENCHLOROL ; PENTACHLOROPHENATE
               B-7

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                   AIR POLLUTANTS AND THEIR  SYNONYMS
        AIR TOXIN
                  SYNONYMS
POLYCHLORINATED BIPHENYLS
           (PCB)
POLYCHLORINATED-BIPHENYL;  CHLORINATED-
DIPHENYL; 1,1'-BIPHENYL,  CHLORO DERIVS;
CASWELL-NO-672A; EPA-PESTICIDE-CHEMICAL-
CODE -0178 01 ;   CLOPHEN; KANECHLOR; AROCLOR;
FENCLOR; CHLOREXTOL; INERTEEN; MONTER;
PHENOCLOR; PYRALENE; PYRANOL;  SANTOTHERM;
SOVOL; THERMINOL; NOFLAMOL;  BIPHENYL,
POLYCHLORO; CHLORINATED-BIPHENYL;
CHLORINATED-DIPHENYLENE;  CHLORO 1,1-
BIPHENYL; DYKANOL; MONTAR;  SANTOTHERM-FR;
THERMINOL FR-1; CHLORO-BIPHENYL;
POLYCHLOROBIPHENYL
         STYRENE
                            ETHENYL BENZENE; PHENYLETHYLENE;  STYRENE
                            MONOMER; STYROL; VINYL BENZENE;  POLYSTYRENE
      2,3,7,8-TETRA-
  CHLORODIBENZO-P-DIOXIN
DIOXIN; DIOXINE; TCDBD;  TCDD;  2,3,7,8-TCDD
1,1,2,2-TETRACHLOROETHANE
l,l-DICHLORO-2,2-DICHLOROETHANE;  ACETYLENE-
TETRACHLORIDE; DICHLORO-2,2-DICHLOROETHANE;
ETHANE,  1,1,2,2-TETRACHLORO;  S-
TETRACHLOROETHANE; SYM-TETRACHLOROETHANE;
TETRACHLOROETHANE; NCI-CO3554; A13-04597;
EPA-PESTICIDE-CHEMICAL-CODE-078601;
WESTRON; ACETOSAL; ACETYLENE-TETRACHLORIDE;
CELLON;  BONOFORM
   TETRACHLOROETHYLENE
           (PCE)
1,1,2,2-TETRACHLOROETHYLENE;
ETHENE,TETRACHLORO; ETHYLENE-TETRACHLORIDE;
PERCHLORETHYLENE;  PERCHLOROETHYLENE;
TETRACHLORETHYLENE; TETRACHLOROETHYLENE;
PCE; AI3-01860; ANKILOSTIN;  CASWELL-NO-827 ;
DIDAKENE; ENT-1,860; EPA-PESTICIDE-
CHEMICAL-CODE-078501; ETHYLENE,
TETRACHLORO; FEDAL-UN; NCI-C04580; NEMA;
PERCLENE; PERSEC;  TETLEN;  TETRACAP;
TETRALENO; TETROPIL; ANTISAL-1;  ANTISOL-1,•
DOW-PER; FEDAL-UN;  PER;  PERAWIN; PERC;
PERCHLOR; PERCOSOLV; PERK;  PERKLONE;
TETRAGUER; TETRALEX; TETRAVEC;  TETROGUER
          TETRYL
N-METHYL-N-2,4,6-TETRANITROANILINE;
NITRAMINE; 2,4,6-TETRYL;  TETRALITE;  2,4,6-
TRINITROPHENYL-N-METHYLNITRAMINE; N-METHYL-
N,2,4,6-TETRANITROBENZENAMINE;  N-PICRYL-N-
METHYL-NITRAMINE; TETRALIT;  TETRIL;
TRINITROPHENYL-METHYLNITRAMINE;  CE

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AIR POLLUTANTS AND THEIR SYNONYMS
AIR TOXIN
TOLUENE
TOXAPHENE
1 , 2 , 4 - TR I CHLOROBENZENE
1,1, 2-TRICHLORO-l,2, 2-
TRIFLUOROETHANE
1,1, 2 -TRICHLOROETHANE
SYNONYMS
BENZENE -METHYL; METHACIDE; METHANE-,
PHENYL; METHYLBENZENE ; METHYLBENZOL;
PHENYLMETHANE ; CASWELL-NO-859 ; NCI-C07272;
ANTISAL-1A; CP-25-MF
CHLORINATED -CAMPHENE; CHLOROCAMPHENE ; NCI-
C00259; OCTACHLOROCAMPHENE ;
POLYCHLOROCAMPHENE ; CAMPHOFENE-HUILEUX ;
CAMPHOCHLOR ; CAMPHECHLOR; TOXAPHEN;
KAMFOCHLOR; AGRICIDE-MAGGOT-KILLER; ALLTEX;
ALLTOX; CHEM-PHENE; COMPOUND- 3 95 6 ;
CRESTOXO; CRISTOXO-90 ; ENT-9735; ESTONOX;
FASCO-TERPENE; GENIPHENE; GY-PHENE;
HERCULES-3956; M-5055; MELIPAX; MOTOX;
PENPHENE; PHENACIDE; PHENATOX; STROBANE-T;
TOXADUST; TOXAKILL; TOXYPHEN; VERATC-90%;
SYNTHETIC-3956; TOXON-63; PCC; ATTAC- 6;
ATTAC-8; ATTAC 4-2; ATTAC 6-3; ATTAC 4-4;
VERTAC -TOXAPHENE- 90; ANATOX; PCHK;
TOXAPHENE- 8 -EMULSIFIABLE- INSECTICIDE; RIGO-
TOXAPHENE-8 ; ROYAL-BRAND-BEAN-TOX-82 ;
COTTON-TOX MP 82; TOXAPHENE 90-10;
TOXAPHENE E-8; TOXAPHENE- 8 -EC; HERCULES -
TOXAPHENE -EMULSIFIABLE -CONCENTRATE; RED-
TOP- TOXAPHENE- 8 -SPRAY; SECURITY TOX-SOL-6;
SECURITY TOX-MP COTTON SPRAY; SECURITY-
MOTOX- 63 -COTTON- SPRAY; AGRO-CHEM BRAND
TORBIDAN 28; AGRO-CHEM BRAND TOXAPHENE 6E;
AGS CO -TOXAPHENE; AGWAY- TOXAPHENE - 6E; DR
ROGER'S TOX-ENE; FELCO/LAND-O' LAKES -
TOXAPHENE ; GROWER- SERV I CE - TOXAPHENE - 6 E ;
GROWER - SERVI CE - TOXAPHENE -MP
1, 2,4-TRICHLOROBENZOL; UNSYM-
TRICHLOROBENZENE
CFG -113; GENETRON-113; HALOCARBON 113; TTE ;
REFRIGERANT 113; CHLOROFLUOROCARBON-113
BETA -TRICHLOROETHANE; ETHANE, 1,1,2-
TRICHLORO; BETA-T; VINYL-TRICHLORIDE
               B-9

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AIR POLLUTANTS AND  THEIR SYNONYMS
AIR TOXIN
TR I CHLOROETHYLENE
1,2, 4 -TRIMETHYLBENZENE
1,3, 5 -TRIMETHYLBENZENE
2,4, 6 -TRINITROTOLUENE
VINYL CHLORIDE
VINYLIDENE CHLORIDE
M-XYLENE
O-XYLENE
P-XYLENE
SYNONYMS
ACETYLENE TRICHLORIDE; ALGYLEN; ANAMENTH;
BENZINOL; BLACOSOLV; BLANCOSOLV; CECOLENE;
CHLORILEN; l-CHLORO-2; 2 -DI CHLOROETHYLENE ;
CHLORYLEA; CHLORYLEN; CHLORYLEN; CIRCOSOLV;
CRAWHASPOL; DENSINFLUAT; 1 , l-DICHLORO-2 -
CHLOROETHYLENE; DOW-TRI; DUKERON; ETHINYL
TRICHLORIDE; ETHYLENE TRICHLORIDE; ETHYLENE
TRICHLORO; FLECK-FLIP; FLOCK FLIP; FLUATE ;
GEMALGENE; GERMALGENE ; LANADIN; LETHURIN;
NARCOGEN; NARKOGEN; NARKOSOID; NCI-C04546;
NIALK; PERM-A-CHLOR; PERM-A-CLOR; PETZINOL;
PHILEX; RCRA WASTE NUMBER U228; TCE;
THRETHYLEN; THRETHYLENE ; TRI ; TRIAD; TRIAL;
TRIASOL; TRICHLOORETHEEN; TRICHLOORETHYLEEN
TRI; TRICHLORAETHEN; TRICHLORAETHYLEN TRI;
TRICHLORAN; TRICHLOREN; TRICHLORETHENE ;
TRICHLORETHYLENE; TRICHLORETHYLENE TRI;
TRICHLOROETHENE ; 1,1, 2 -TRICHLOROETHYLENE ;
1,2, 2 -TRICHLOROETHYLENE ; TRI - CLENE ;
TRICHLORETENE; TRICLOROETILENE; TRIELENE;
TRIELIN; TRIELINA; TRIKLONE; TRILEN;
TRILENE; TRILINE; TRIMAR; TRIOL; TRI -PLUS ;
TRI -PLUS M; UN 1710; VESTROL; VITRAN;
WESTROSOL
PSEUDOCUMENE ; UNS- TRIMETHYLBENZENE ;
ASYMMETRICAL -TRIMETHYLBENZENE; PSI-CUMENE
MESITYLENE; FLEET-X; SYM- TRIMETHYLBENZENE ;
TRIMETHYLBENZOL
1 -METHYL -2, 4, 6-TRINITROBENZENE ; TNT;
TRINITROTOLUENE; TRINITROLUOL
CHLORETHENE ; CHLORETHYLENE ; CHLOROETHENE ;
CHLOROETHYLENE; ETHYLENE -MONOCHLORIBE, •
ETHYLENE, CHLORO; MONOCHLOROETHENE ;
MONOCHLOROETHYLENE ; VC; VCM; VINYL- C-
MONOMER; VINYL-CHLORIDE-MONOMER; ETHENE ,
CHLORO; TROVIDUR; MONOVINYL- CHLORIDE (MVC)
1 , 1-DICHLOROETHENE ; VINYLIDENE-DICHLORIDE ;
1,1-DICHLOROETHYLENE; ; VINYLIDENE-CHLORIDE
MONOMER ; 1,1- DCE ; VDC
1,3-DIMETHYLBENZENE; M-XYLOL
1,2-DIMETHYLBENZENE; O-XYLOL
1,4-DIMETHYLBENZENE, P-XYLOL
               B-10

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AIR POLLUTANTS AND THEIR  SYNONYMS
AIR
TOTAL
TOXIN
XYLENES
ZINC
SYNONYMS
1, 3-DIMETHYLBENZENE; 1 , 3 -XYLENE ; BENZENE,
1, 3 -DIMETHYL; m-DIMETHYLBENZENE ; m-XYLOL;
m-METHYLTOLUENE; AI3-08916; m-XYLENE
ZINC-DISTEARATE
OCTADECANOATE ;
; DERMARONE ;
TALCULIN-Z
ZINC
-
               B-ll

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                   APPENDIX C:







 LISTING OF COMMON AIR POLLUTANT ACRONYMS AND




ABBREVIATIONS  (WITH DEFINITIONS AND REFERENCES)

-------
         Alphabetical Listing  of  Common
              Acronyms/Abbreviations
         (with  Definitions  & References)
Acronyms/Abbreviation

AALG
AIHA ERPG
Definition & Reference

Ambient Air Level Goals; the
lifetime exposure level of a
toxicant below which the risk of
an adverse health effect for an
exposed population is less than a
predetermined de minimus value
such as one in a million or one in
one hundred thousand.   (Calabrese,
E.J.,  and Kenyon, E.M.  1991.  Air
.Toxics and Risk Assessment.
Chelsea, MI.  Lewis Publishers.)

American Industrial Hygiene
Association Emergency Response
Planning Guidelines;
concentrations of an airborne
chemical that fall into three
categories:  ERPG-3 is the maximum
concentration in air below which
no "life-threatening health
effects" would occur; ERPG-2 is
the maximum concentration in air
below which no "irreversible or
other serious health effects or
symptoms which could impair an
individual's ability to take
protective action" would occur;
ERPG-1 is the maximum
concentration in air below which
no "mild,  transient adverse health
effects" would occur and no
"objectionable odor" would be
detected.   (American Industrial
Hygiene Association  (AIHA).
Concepts and Procedures for the
Development of Emergency Response
Planning Guidelines  (ERPGs).
1989.)
                             C-l

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         Alphabetical Listing  of  Common
              Acronyms/Abbreviations
         (with  Definitions  & References)
Acronyms/Abbreviation
Definition & Reference
ACGIH-STEL
ACGIH-TLV
ACGIH-TWA
BACT

CAPCOA
American  Conference of
Governmental Industrial
Hygienists-Short Term Exposure
Limit;  a  15 minute exposure which
should  not be exceed at any time
during  a  workday.  (1992-1993
Threshold Limit Values for
Chemical  Substances and Physical
Agents  and Biological Exposure
Indices,  ACGIH Handbook)

American  Conference of
Governmental Industrial
Hygienists-Threshold Limit Values;
the conditions under which almost
all workers may be exposed to  a
workplace chemical day after day
without developing any adverse
effect.  (Regulatory Requirements
for Hazardous Materials,  McGraw-
Hill,  Inc., New York, NY.  1993)

American  Conference of
Governmental Industrial
Hygienists-Time-Weighted Average;
concentrations which are averaged
for up  to a 10-hour workday during
a 40-hour work week.    (June 1990
NIOSH Pocket Guide to Chemical
Hazards)

Best Available Control Technology.

California Air Pollution Control
Officers  Association; one hour
maximum concentrations considered
to be acceptable exposure levels.
Exposures below the CAPCOA
acceptable level are not expected
to result in adverse effects to
the exposed population.   (CAPCOA.
January 1991.  Air Toxics "Hot
                             C-2

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         Alphabetical Listing  of  Common
               Acronyms/Abbreviations
         (with  Definitions  &  References)
Acronyms/Abbreviation
Definition  & Reference
CEGL
CHEMADVISOR DATABASE
EEGL
Spots"  Program:  Risk Assessment
Guidelines  Sacramento,  CA:   AB
2588 Risk Assessment Committee of
the California Air Pollution
Control Officers Association.)

Continuous  Exposure Guidance
Level;  an exposure guidance  level
developed by the National Research
Council specifically for military
personnel operating under
emergency conditions. The CEGL is
a ceiling concentration of a
chemical in air to which military
personnel can be exposed for up to
90 days without immediate or
delayed adverse effects or
degradation of performance.   A
CEGL is generally estimated  by
applying an uncertainty factor of
10 to 100 to the EEGL,  depending
on the  evidence of detoxification
or accumulation of the substance
in the  body.   (Appendix C of EPA's
guidance document "Risk Assessment
Guidance for Superfund:  Volume I -
Human Health Evaluation Manual
(Part C,  Risk Evaluation of
Remedial Response, Washington,
B.C.  October 1991))

A database  of regulatory data as
well as physical and chemical
constants for specific compounds.
(ChemAdvisor(R) ,  Inc.  Canadian
Centre  for  Occupational Health and
Safety.   1994)

Emergency Exposure Guidance  Level;
an exposure guidance level
developed by the National Research
Council specifically for military
                             C-3

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         Alphabetical Listing  of  Common
              Acronyms/Abbreviations
         (with  Definitions  & References)
Acronyms/Abbreviation
Definition & Reference
EHS LOG
EPA

IRIS DATABASE
personnel operating under
emergency conditions.  An EEGL  is
the air concentration of a
substance that is acceptable for
the performance of specific tasks
during rare emergencies usually
lasting from 1 to 24 hours. EEGLs
are intended to prevent
irreversible harm or serious
impairment of judgement or
performance.  Acute toxicity is
the primary basis for establishing
an EEGL.   (Appendix C of EPA's
guidance document "Risk Assessment
Guidance for Superfund: Volume I -
Human Health Evaluation Manual
(Part C, Risk Evaluation of
Remedial Response, Washington,
B.C.   October 1991)

Extremely Hazardous Substances
Levels of Concern; airborne
concentrations of chemicals on the
Superfund Amendments and
Reauthorization Act (SARA)  Title
III Section 302 list at which  no
serious, irreversible health
effects or death may occur
following a single,  short-term
exposure.   (US EPA Technical
Guidance for Hazards Analysis,
Emergency Planning for Extremely
Hazardous Substances,  1987.)

Environmental Protection Agency.

Integrated Risk Information System
Database; a database maintained by
the National Library of Medicine
that contains health-effects
related data.
                             C-4

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         Alphabetical Listing  of  Common
               Acronyms/Abbreviations
         (with  Definitions  &  References)
Acronyms/Abbreviation
Definition & Reference
LFC
LOAEL
MD SCREENING LEVEL
MRL
Lowest-Concentration-Feasible.
Registry of Toxic Effects of
Chemical Substances.

Lowest-Observed-Adverse-Effect
Level; the lowest dose of chemical
in a study, or group of studies,
that produces statistically or
biologically significant increases
in frequency or severity of
adverse effects between the
exposed population and its
appropriate control.
(Toxicological Profiles. Agency
for Toxic Substances and Disease
Registry. April 1993)

State of Maryland Screening
Levels; the State uses 1-hour and
8-hour screening levels as guides
for ambient air emission levels
that are protective of public
health from noncancer effects.  A
screening level can be equivalent
to either the TLV-TWA,  TLV-STEL,
or TLV-C divided by a factor of
100.  (Maryland Department of the
Environment.  Overview of
Maryland's Proposed Air Toxics
Regulations, June 1988.)

Minimum Risk Level; an estimate of
daily human exposure to a dose  of
a chemical that is likely to be
without an appreciable risk of
adverse noncancerous effects over
a specified duration of exposure.
(Toxicological Profiles. Agency
for Toxic Substances and Disease
Registry. April 1993)
                             C-5

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         Alphabetical  Listing  of  Common
              Acronyms/Abbreviat ions
         (with  Definitions  & References)
Acronyms/Abbreviation
Definition & Reference
NATICH DATABASE
NIOSH-REL
NIOSH-IDLH
NOAEL
National Air Toxics Information
Clearinghouse Database;  a database
maintained by the EPA related  to
Federal, State, and Local air
toxics activities.

National Institute for
Occupational Safety and Health-
Recommended Exposure Level

National Institute for
Occupational Safety and Health-
Immediately Dangerous to Life  or
Health; maximum concentrations
from which, in the event of
respirator failure, one could
escape within 30 minutes without  a
respirator and without
experiencing any escape-impairing
(e.g.,  severe eye irritation)  or
reversible health effects.  (June
1990 NIOSH Pocket Guide to
Chemical Hazards)

No Observed Adverse Effect Level;
the dose of chemical at which
there were no statistically  of
biologically significant increases
in frequency or severity of
adverse effects seen between the
exposed population and its
appropriate control.  Effects  may
be produced at this dose, but  they
are not considered to be adverse.
(Toxicolocrical Profiles. Agency
for Toxic Substances and Disease
Registry. April 1993)
                             C-6

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         Alphabetical Listing  of  Common
               Acronyms/Abbreviations
         (with  Definitions  &  References)
Acronyms/Abbreviation
Definition  & Reference
ODOR THRESHOLD
OSHA ACTION LEVEL
OSHA CEILING
OSHA MAXIMUM
The detection threshold is defined
as the minimum physical intensity
detection by a subject where he  is
not required to identify the
stimulus but just detect the
existence of the stimulus.  Tests
were performed with air samples,
usually of the highest purity.
(Compilation of Odor and Taste
Threshold Values Data, American
Society for Testing and Materials,
Philadelphia, PA.  1978)

Occupational Safety and Health
Administration - Action Level; an
airborne concentration.
(Occupational Safety and Health
Standards.  29 CFR 1910 Part Z.

Occupational Safety and Health
Administration - Ceiling Limit;  an
acceptable ceiling concentration
for a 15 minute exposure that must
not be exceeded. (Occupational
Safety and Health Standards -
Subpart S.  29 CFR Part
1910.1000(f). Corrected November
1, 1990)

Occupational Safety and Health
Administration - Maximum Limit;  an
acceptable maximum peak above the
acceptable ceiling concentration
that must not be exceeded.  The
time of the maximum duration is
dependent on the compound.
(Occupational Safety and Health
Standards - Subpart S. 29 CFR
Part 1910.1000(f).  Corrected
November 1, 1990)
                             C-7

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         Alphabetical Listing  of  Common
              Acronyms/Abbreviations
         (with  Definitions  &  References)
Acronyms/Abbreviation
Definition & Reference
OSHA-PEL
RFC
SAAPS
SPEGL
Occupational Safety and Health
Administration - Permissible
Exposure  Limit; the maximum
allowable exposure level to air
contaminants by workers averaged
over an 8-hour period that may
result from various chemicals  and
chemical  substances. (Regulatory
Requirements for Hazardous
Materials, McGraw-Hill, Inc.,  New
York,  NY.  1993)

Reference Concentration; the
maximum air concentration of a
chemical  above which adverse
effects have been shown to occur
in a developing organism.
(Appendix C of EPA's guidance
document  "Risk Assessment Guidance
for Superfund: Volume I - Human
Health Evaluation Manual (Part C,
Risk Evaluation of Remedial
Response,  Washington, B.C.
October 1991))

State ambient air pollutant
standards.

Short-term Public Emergency
Guidance Level; an exposure
guidance level developed by the
National Research Council
specifically for military
personnel operating under
emergency conditions. The SPEGL is
a suitable concentration for
unpredicted, single, short-term
emergency exposure of 1 to 24
hours.  The SPEGL is generally
estimated by applying an
uncertainty factor of two to ten
to the EEGL to account for
                             C-:

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         Alphabetical  Listing  of Common
              Acronyms/Abbreviations
         (with Definitions  &  References)
Acronyms/Abbreviation
Definition & Reference
UNIT RISK CONCENTRATIONS
WEEL
sensitive groups - such as
children, the elderly,  and persons
with serious debilitating
diseases.   (Appendix C  of EPA's
guidance document "Risk Assessment
Guidance for Superfund:  Volume I -
Human Health Evaluation Manual
(Part C, Risk Evaluation of
Remedial Response, Washington,
D.C.   October  1991)

The concentration in air of a
specific carcinogen to  which
exposure for 70 years results in
an incremental cancer risk of 1 x
10~6.   Unit  Risk Concentrations are
calculated  from the slope of the
dose-response curve.  The dose
response curve is generated
through modelling to predict the
impact of long-term low doses on
human health.  ("Risk Assessment:
Guidance for Superfund:  Volume I -
Human Health Evaluation Manual
(Part A).   EPA/540/1-89/002.
Washington, D.C.   December 1989)

Workplace Environmental Exposure
Level.
                            C-9

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1. REPORT NO.
EPA-451/R-96-006
TECHNICAL REPORT DATA
(Please read Instructions on reverse before completing)
2.
4. TITLE AND SUBTITLE
Air/Superfimd National Technical Guidance Study
Series - Air/Superfimd Guide to Pollutant Toxicity
7. AUTHOR(S)
9. PERFORMING ORGANIZATION NAME AN
Pacific Environmental
Post Office Box 12077
Research Triangle Par
ID ADDRESS
Services, Inc.
k, NC 27709-2077
12. SPONSORING AGENCY NAME AND ADDRESS
U.S. Environmental Protection Agency
Region VIII
Denver, Colorado 80202-2405
3. RECIPIENT'S ACCESSION NO.
5. REPORT DATE
March 1996
6. PERFORMING ORGANIZATION CODE
8. PERFORMING ORGANIZATION REPORT NO.
10. PROGRAM ELEMENT NO.
11. CONTRACT/GRANT NO.
13. TYPE OF REPORT AND PERIOD COVERED
Final
14. SPONSORING AGENCY CODE
15. SUPPLEMENTARY NOTES
16. ABSTRACT
This report compiles a list of existing health-related values (inhalation equivalent only) for 34
individual pollutants [volatile organic compounds (VOCs), metals, pesticides, and heavy organic
compounds]. Health-related values were identified from sources such as the American Conference of
Governmental Industrial Hygienists (ACGIH), the National Institute for Occupational Safety and Health
(NIOSH), and the Occupational Safety and Health Administration (OSHA). Ambient air standards were
also identified from States around the country. The data gathering effort involved the following for each
pollutant identified:
0 Searching both scientific literature and State regulations for all health related
concentrations
0 Preparing a listing of each concentration or limit
0 Providing definitions of each of the common values listed
0 Preparing a listing of compound synonyms and health effect descriptions.
This report also contains the inhalation exposure limits that were identified for each of the 34
pollutants ranked by exposure limit.
17.
a. DESCRIPTORS
Air Pollution
Superfund
Exposure Analysis
18. DISTRIBUTION STATEMENT
KEY WORDS AND DOCUMENT ANALYSIS

b. IDENTIFIERS/OPEN ENDED TERMS c. COSATI Field/Group

19. SECURITY CLASS (Report) £' £ { , jr'v V?|)tfQj 9$ PAQBS
20. SECURITY CLASS (Page) * '" ' 2J. PRtCE ; '*"'
II

«
EPA Form 2220-1 (Rev. 4-77)   PREVIOUS EDITION IS OBSOLETE

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U.S. Environmental Protection Agency
Region 5, library (PH2D
77 West Jackson Boulevard, 12th Floor
Chicago, IL  60604-3590

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