WAC 173-401-531. Thresholds for hazardous air pollutants

General. The following tables provide thresholds for hazardous air pollutants:

(1) Carcinogens:

CAS Number Chemical Name Threshold Levels (tons/year) 189-55-9 1, 2, 7, 8-dibenzopyrene 0.005 107-06-2 1, 2-dichloroethane 0.4 78-87-5 1, 2-dichloropropane 0.5 540-73-8 1, 2-dimethylhydrazine 0.004 122-66-7 1, 2-diphenylhydrazine 0.045 106-99-0 1, 3-butadiene 0.035 1120-71-4 1, 3-propane sultone 0.003 106-46-7 1, 4-dichlorobenzene (p) 0.5 123-91-1 1, 4-dioxane (1, 4-diethyleneoxide) 0.5 94-75-7 2, 4-d salts & esters 0.5 95-80-7 2, 4-toluene diamine 0.01 584-84-9 2, 4-toluene diisocyanate 0.05 53-96-3 2-acetylaminofluorene 0.0025 119-90-4 3, 3'-dimethoxybenzidine 0.5 119-93-7 3, 3-dimethyl benzidine 0.004 101-14-4 4, 4'-methylenebis (2-chloroaniline) 0.5 75-07-0 acetaldehyde 0.5 107-13-1 acrylonitrile 0.15 62-53-3 aniline 0.5 C7440-38-2 arsenic and inorganic arsenic compounds 0.002 1332-21-4 asbestos (fibers/ml) 0.00004 71-43-2 benzene 0.5 92-87-5 benzidine (and its salts) 0.00015 56-55-3 benzo(a)anthracene 0.005 50-32-8 benzo(a)pyrene 0.005 205-99-2 benzo(b)fluoranthene 0.005 7440-41-7 beryllium and compounds (except salts) 0.004 117-81-7 bis (2-ethylhexyl) phthalate 0.5 542-88-1 bis (chloromethyl) ether 0.00015 75-25-2 bromoform 0.5 7440-43-9 cadmium and compounds 0.005 56-23-5 carbon tetrachloride 0.5 57-74-9 chlordane 0.005 510-15-6 chlorobenzilate 0.2 67-66-3 chloroform 0.45 107-30-2 chloromethyl methyl ether 0.1 126-99-8 chloroprene 0.5 C7440-47-3 chromium, hexavalent metal 0.001 218-01-9 chrysene 0.005 ——— coke oven emissions 0.015 3547-04-4 DDE 0.005 53-70-3 dibenz(a, h)anthracene 0.005 132-64-9 dibenzofuran 0.5 111-44-4 dichloroethyl ether 0.03 75-09-2 dichloromethane 0.5 77-78-1 dimethyl sulfate 0.1 ——— dioxins & furans (tcdd equivalent) 3e-07 106-89-8 epichlorohydrin 0.5 107-06-2 ethylene dichloride 0.4 106-93-4 ethylene dibromide (dibromethane) 0.05 75-21-8 ethylene oxide 0.1 96-45-7 ethylene thiourea 0.3 76-44-8 heptachlor 0.01 118-74-1 hexachlorobenzene 0.005 58-89-9 hexachlorocyclohexane, gamma 0.005 302-

4 dichloroethyl ether 0.03 75-09-2 dichloromethane 0.5 77-78-1 dimethyl sulfate 0.1 ——— dioxins & furans (tcdd equivalent) 3e-07 106-89-8 epichlorohydrin 0.5 107-06-2 ethylene dichloride 0.4 106-93-4 ethylene dibromide (dibromethane) 0.05 75-21-8 ethylene oxide 0.1 96-45-7 ethylene thiourea 0.3 76-44-8 heptachlor 0.01 118-74-1 hexachlorobenzene 0.005 58-89-9 hexachlorocyclohexane, gamma 0.005 302-01-2 hydrazine 0.002 193-39-5 indeno (1, 2, 3-cd) pyrene 0.005 ——— lead & compounds (except those listed) 0.005 58-89-9 lindane 0.005 75-09-2 methylene chloride 0.5 62-75-9 n-nitrosodimethylamine 0.0005 C7440-02-0 nickel and compounds (except those listed) 0.02 13463-39-3 nickel carbonyl 0.1 95-53-4 o-toluidine 0.5 87-86-5 pentachlorophenol 0.35 127-18-4 perchloroethylene 0.5 1336-36-3 polychlorinated biphenyls 0.0045 75-56-9 propylene oxide 0.5 8001-35-2 toxaphene 0.005 79-01-6 trichloroethylene 0.5 75-01-4 vinyl chloride 0.1 79-34-5 1, 1, 2, 2-tetrachloroethane 0.15 79-00-5 1, 1, 2-trichloroethane 0.5 57-14-7 1, 1-dimethyl hydrazine 0.004 96-12-8 1, 2-dibromo-3-chloropropane 0.004 79-06-1 acrylamide 0.01 98-07-7 benzotrichloride 0.003 62-73-7 dichlorvos 0.1 79-44-7 dimethyl carbamoyl chloride 0.5 140-88-5 ethyl acrylate 0.5 51-79-6 ethyl carbamate 0.5 151-56-4 ethylene imine 0.5 87-68-3 hexachlorobutadiene 0.5 67-72-1 hexachloroethane 0.5 60-34-4 methyl hydrazine 0.03 684-93-5 n-nitroso-n-methylurea 0.5 12035-72-2 nickel refinery dust 0.08 ——— nickel subsulfide 0.02 82-68-8 pentachloronitrobenzene 0.15 91-22-5 quinoline 0.003 1582-09-8 trifluralin 0.5 593-60-2 vinyl bromide 0.5 75-35-4 vinylidene chloride 0.2 189559 1, 2: 7, 8-dibenzopyrene 0.005 121142 2, 4-dinitrotoluene 0.01 88062 2, 4, 6-trichlorophenol 0.5 91941 3, 3-dichlorobenzidene 0.1 57596 7, 12-dimethylbenz(a)anthracene 0.005 50000 formaldehyde 0.5

CAS Number

Chemical Name

Threshold Levels

(tons/year)

189-55-9

1, 2, 7, 8-dibenzopyrene

0.005

107-06-2

1, 2-dichloroethane

0.4

78-87-5

1, 2-dichloropropane

0.5

540-73-8

1, 2-dimethylhydrazine

0.004

122-66-7

1, 2-d

-dibenzopyrene 0.005 121142 2, 4-dinitrotoluene 0.01 88062 2, 4, 6-trichlorophenol 0.5 91941 3, 3-dichlorobenzidene 0.1 57596 7, 12-dimethylbenz(a)anthracene 0.005 50000 formaldehyde 0.5

CAS Number

Chemical Name

Threshold Levels

(tons/year)

189-55-9

1, 2, 7, 8-dibenzopyrene

0.005

107-06-2

1, 2-dichloroethane

0.4

78-87-5

1, 2-dichloropropane

0.5

540-73-8

1, 2-dimethylhydrazine

0.004

122-66-7

1, 2-diphenylhydrazine

0.045

106-99-0

1, 3-butadiene

0.035

1120-71-4

1, 3-propane sultone

0.003

106-46-7

1, 4-dichlorobenzene (p)

0.5

123-91-1

1, 4-dioxane (1, 4-diethyleneoxide)

0.5

94-75-7

2, 4-d salts & esters

0.5

95-80-7

2, 4-toluene diamine

0.01

584-84-9

2, 4-toluene diisocyanate

0.05

53-96-3

2-acetylaminofluorene

0.0025

119-90-4

3, 3'-dimethoxybenzidine

0.5

119-93-7

3, 3-dimethyl benzidine

0.004

101-14-4

4, 4'-methylenebis (2-chloroaniline)

0.5

75-07-0

acetaldehyde

0.5

107-13-1

acrylonitrile

0.15

62-53-3

aniline

0.5

C7440-38-2

arsenic and inorganic arsenic compounds

0.002

1332-21-4

asbestos (fibers/ml)

0.00004

71-43-2

benzene

0.5

92-87-5

benzidine (and its salts)

0.00015

56-55-3

benzo(a)anthracene

0.005

50-32-8

benzo(a)pyrene

0.005

205-99-2

benzo(b)fluoranthene

0.005

7440-41-7

beryllium and compounds (except salts)

0.004

117-81-7

bis (2-ethylhexyl) phthalate

0.5

542-88-1

bis (chloromethyl) ether

0.00015

75-25-2

bromoform

0.5

7440-43-9

cadmium and compounds

0.005

56-23-5

carbon tetrachloride

0.5

57-74-9

chlordane

0.005

510-15-6

chlorobenzilate

0.2

67-66-3

chloroform

0.45

107-30-2

chloromethyl methyl ether

0.1

126-99-8

chloroprene

0.5

C7440-47-3

chromium, hexavalent metal

0.001

218-01-9

chrysene

0.005

———

coke oven emissions

0.015

3547-04-4

DDE

0.005

53-70-3

dibenz(a, h)anthracene

0.005

132-64-9

dibenzofuran

0.5

111-44-4

dichloroethyl ether

0.03

75-09-2

dichloromethane

0.5

77-78-1

dimethyl sulfate

0.1

———

dioxins & furans (tcdd equivalent)

3e-07

106-89-8

epichlorohydrin

0.5

107-06-2

ethylene dichloride

0.4

106-93-4

ethylene dibromide (dibromethane)

0.05

75-21-8

ethylene oxide

0.1

96-45-7

ethylene thiourea

0.3

76-44-8

hepta

3547-04-4

DDE

0.005

53-70-3

dibenz(a, h)anthracene

0.005

132-64-9

dibenzofuran

0.5

111-44-4

dichloroethyl ether

0.03

75-09-2

dichloromethane

0.5

77-78-1

dimethyl sulfate

0.1

———

dioxins & furans (tcdd equivalent)

3e-07

106-89-8

epichlorohydrin

0.5

107-06-2

ethylene dichloride

0.4

106-93-4

ethylene dibromide (dibromethane)

0.05

75-21-8

ethylene oxide

0.1

96-45-7

ethylene thiourea

0.3

76-44-8

heptachlor

0.01

118-74-1

hexachlorobenzene

0.005

58-89-9

hexachlorocyclohexane, gamma

0.005

302-01-2

hydrazine

0.002

193-39-5

indeno (1, 2, 3-cd) pyrene

0.005

———

lead & compounds (except those listed)

0.005

58-89-9

lindane

0.005

75-09-2

methylene chloride

0.5

62-75-9

n-nitrosodimethylamine

0.0005

C7440-02-0

nickel and compounds (except those listed)

0.02

13463-39-3

nickel carbonyl

0.1

95-53-4

o-toluidine

0.5

87-86-5

pentachlorophenol

0.35

127-18-4

perchloroethylene

0.5

1336-36-3

polychlorinated biphenyls

0.0045

75-56-9

propylene oxide

0.5

8001-35-2

toxaphene

0.005

79-01-6

trichloroethylene

0.5

75-01-4

vinyl chloride

0.1

79-34-5

1, 1, 2, 2-tetrachloroethane

0.15

79-00-5

1, 1, 2-trichloroethane

0.5

57-14-7

1, 1-dimethyl hydrazine

0.004

96-12-8

1, 2-dibromo-3-chloropropane

0.004

79-06-1

acrylamide

0.01

98-07-7

benzotrichloride

0.003

62-73-7

dichlorvos

0.1

79-44-7

dimethyl carbamoyl chloride

0.5

140-88-5

ethyl acrylate

0.5

51-79-6

ethyl carbamate

0.5

151-56-4

ethylene imine

0.5

87-68-3

hexachlorobutadiene

0.5

67-72-1

hexachloroethane

0.5

60-34-4

methyl hydrazine

0.03

684-93-5

n-nitroso-n-methylurea

0.5

12035-72-2

nickel refinery dust

0.08

———

nickel subsulfide

0.02

82-68-8

pentachloronitrobenzene

0.15

91-22-5

quinoline

0.003

1582-09-8

trifluralin

0.5

593-60-2

vinyl bromide

0.5

75-35-4

vinylidene chloride

0.2

189559

1, 2: 7, 8-dibenzopyrene

0.005

121142

2, 4-dinitrotoluene

0.01

88062

2, 4, 6-trichlorophenol

0.5

91941

3, 3-dichlorobenzidene

0.1

57596

7, 12-dimethylbenz(a)anthracene

0.005

50000

formaldehyde

0.5

ckel refinery dust

0.08

———

nickel subsulfide

0.02

82-68-8

pentachloronitrobenzene

0.15

91-22-5

quinoline

0.003

1582-09-8

trifluralin

0.5

593-60-2

vinyl bromide

0.5

75-35-4

vinylidene chloride

0.2

189559

1, 2: 7, 8-dibenzopyrene

0.005

121142

2, 4-dinitrotoluene

0.01

88062

2, 4, 6-trichlorophenol

0.5

91941

3, 3-dichlorobenzidene

0.1

57596

7, 12-dimethylbenz(a)anthracene

0.005

50000

formaldehyde

0.5

(2) Noncarcinogens:

CAS Number Chemical Name Threshold Levels (tons/year) 75-34-3 ethylidene dichloride (1, 1-dichloroethane) 0.5 75-55-8 1, 2 propylenimine (2-methyl aziridine) 0.003 120-82-1 1, 2, 4-trichlorobenzene 0.5 106-88-7 1, 2-epoxybutane 0.5 542-75-6 1, 3-dichloropropene (dichloropropene) 0.5 51-28-5 2, 4-dinitrophenol 0.5 111-76-2 2-butoxyethanol 0.5 110-80-5 2-ethoxyethanol 0.5 109-86-4 2-methoxyethanol 0.5 92-93-3 4-nitrobiphenol 0.5 100-02-7 4-nitrophenol 0.5 75-05-8 acetonitrile 0.5 98-86-2 acetophenone 0.5 107-02-8 acrolein 0.04 79-10-7 acrylic acid 0.5 107-05-1 allyl chloride 0.5 C7440-36-0 antimony & compounds as sb 0.5 1309-64-4 antimony trioxide, as sb 0.5 7784-42-1 arsine 0.1 100-44-7 benzyl chloride 0.1 92-52-4 biphenyl 0.5 156-62-7 calcium cyanamide 0.5 105-60-2 caprolactam, dust 0.5 105-60-2 caprolactam, vapor 0.5 133-06-2 captan 0.5 63-25-2 carbaryl 0.5 75-15-0 carbon disulfide 0.5 463-58-1 carbonyl sulfide 0.5 120-80-9 catechol 0.5 7782-50-5 chlorine 0.1 79-11-8 chloroacetic acid 0.1 532-27-4 chloroacetophenone, alpha- 0.06 108-90-7 chlorobenzene 0.5 C7440-47-3 chromium (ii) compounds, as cr 0.5 C7440-47-3 chromium (iii) compounds, cr 0.5 10210-68-1 cobalt carbonyl, as co 0.1 7440-48-4 cobalt, as co metal dust, fume 0.1 1319-77-3 cresols/cresylic acid, (isomers and mixture) 0.5 95-48-7 o-cresol 0.5 108-39-4 m-cresol 0.5 106-44-5 p-cresol 0.5 98-82-8 cumene 0.5 51-12-5 cyanides, as cn 0.5 84-74-2 dibutyl phthalate 0.5 111-42-2 diethanolamine 0.5 60-11-7 dimethyl aminoazobenzene 0.5 121-69-7 dimethylaniline 0.5 68-12-2 dimethylformamide 0.5 131-11-3 dimethylphthalate 0.5 100-41-4 ethyl benzene 0.

tal dust, fume 0.1 1319-77-3 cresols/cresylic acid, (isomers and mixture) 0.5 95-48-7 o-cresol 0.5 108-39-4 m-cresol 0.5 106-44-5 p-cresol 0.5 98-82-8 cumene 0.5 51-12-5 cyanides, as cn 0.5 84-74-2 dibutyl phthalate 0.5 111-42-2 diethanolamine 0.5 60-11-7 dimethyl aminoazobenzene 0.5 121-69-7 dimethylaniline 0.5 68-12-2 dimethylformamide 0.5 131-11-3 dimethylphthalate 0.5 100-41-4 ethyl benzene 0.5 75-00-3 ethyl chloride 0.5 107-21-1 ethylene glycol 0.5 111-76-2 ethylene glycol monobutyl ether 0.5 ——— glycol ethers (except for listed ones) 0.5 77-47-4 hexachlorocyclopentadiene 0.1 822-06-0 hexamethylene, 1, 6-diisocyanate 0.02 110-54-3 hexane (n-hexane) 0.5 110-54-3 hexane, other isomers 0.5 7647-01-0 hydrogen chloride 0.5 7664-39-3 hydrogen fluoride, as f 0.1 123-31-9 hydroquinone 0.5 78-59-1 isophorone 0.5 108-31-6 maleic anhydride 0.5 C7439-96-5 manganese dust & compounds (except listed) 0.5 748-79-4 mercuric chloride 0.01 10045-94-0 mercuric nitrate 0.01 C7439-97-6 mercury, elemental 0.01 72-43-5 methoxychlor 0.5 67-56-1 methyl alcohol 0.5 74-83-9 methyl bromide 0.5 74-87-3 methyl chloride 0.5 71-55-6 methyl chloroform (1, 1, 1-trichloroethane) 0.5 78-93-3 methyl ethyl ketone (mek) 0.5 74-88-4 methyl iodide 0.06 108-10-1 methyl isobutyl ketone 0.5 624-83-9 methyl isocyanate 0.1 80-62-6 methyl methacrylate 0.5 1634-04-4 methyl tert-butyl ether 0.5 12108-13-3 methylcyclopentadienyl manganese tricarbonyl 0.1 101-68-8 methylene bisphenyl isocyanate 0.1 91-20-3 naphthalene 0.5 98-95-3 nitrobenzene 0.5 106-50-3 p-phenylenediamine 0.5 56-38-2 parathion 0.1 108-95-2 phenol 0.1 62-38-4 phenyl mercuric acetate 0.01 75-44-5 phosgene 0.1 7803-51-2 phosphine 0.5 7723-14-0 phosphorus 0.1 85-44-9 phthalic anhydride 0.5 57-57-8 propiolactone, beta- 0.1 123-38-6 propionaldehyde 0.5 114-26-1 propoxur 0.5 106-51-4 quinone 0.5 C7782-49-2 selenium compounds, as se 0.5 7783-79-1 selenium hexafluoride, as se 0.5 7488-56-4 selenium sulfides (mono and di) 0.5 100-42-5 styrene monomer 0.5 78-00-2 tetraethyl lead, as pb 0.01 75-74-1 te

sgene 0.1 7803-51-2 phosphine 0.5 7723-14-0 phosphorus 0.1 85-44-9 phthalic anhydride 0.5 57-57-8 propiolactone, beta- 0.1 123-38-6 propionaldehyde 0.5 114-26-1 propoxur 0.5 106-51-4 quinone 0.5 C7782-49-2 selenium compounds, as se 0.5 7783-79-1 selenium hexafluoride, as se 0.5 7488-56-4 selenium sulfides (mono and di) 0.5 100-42-5 styrene monomer 0.5 78-00-2 tetraethyl lead, as pb 0.01 75-74-1 tetramethyl lead, as pb 0.01 7550-45-0 titanium tetrachloride 0.1 108-88-3 toluene 0.5 121-44-8 triethylamine 0.5 108-05-4 vinyl acetate 0.5 593-60-2 vinyl bromide 0.5 1330-20-7 xylenes (m-,o-,p-isomers) 0.5 79469 2-nitropropane 0.5 540841 2, 2, 4-trimethylpentane 0.5 95954 2, 4, 5-trichlorophenol 0.5 92671 4-aminobiphenyl 0.5 101779 4, 4'-methlenedianiline 0.5 534521 4, 6-dinitro-o-cresol and salts 0.1 60355 acetamide 0.5 1345046 antimony trisulfide 0.1 7783702 antimony pentafluoride 0.1 28300745 antimony potassium tartrate 0.5 133904 chloramben 0.5 ——— chromium compounds, except hexavalent and trivalent 0.5 10025737 chromic chloride 0.1 334883 diazomethane 0.5 64675 diethyl sulfate 0.5 62207765 fluomine 0.1 680319 hexamethylphosphoramide 0.01 12108133 methylcyclopentadienyl manganese 0.1 101688 methylene diphenyl diisocyanate 0.1 69892 N-nitrosomorpholine 0.5 90040 o-anisidine 0.5 ——— polycyclic organic matter 0.01 151508 potassium cyanide 0.1 14339 sodium cyanide 0.1 10102188 sodium selenite 0.1 13410010 sodium selenate 0.1 96093 styrene oxide 0.5

CAS Number

Chemical Name

Threshold Levels

(tons/year)

75-34-3

ethylidene dichloride (1, 1-dichloroethane)

0.5

75-55-8

1, 2 propylenimine (2-methyl aziridine)

0.003

120-82-1

1, 2, 4-trichlorobenzene

0.5

106-88-7

1, 2-epoxybutane

0.5

542-75-6

1, 3-dichloropropene (dichloropropene)

0.5

51-28-5

2, 4-dinitrophenol

0.5

111-76-2

2-butoxyethanol

0.5

110-80-5

2-ethoxyethanol

0.5

109-86-4

2-methoxyethanol

0.5

92-93-3

4-nitrobiphenol

0.5

100-02-7

4-nitrophenol

0.5

75-05-8

acetonitrile

0.5

98-86-2

acetophenone

0.5

107-02-8

acrolein

0.04

79-10-7

acrylic acid

0.5

107-05-1

allyl chloride

0.5

ichlorobenzene

0.5

106-88-7

1, 2-epoxybutane

0.5

542-75-6

1, 3-dichloropropene (dichloropropene)

0.5

51-28-5

2, 4-dinitrophenol

0.5

111-76-2

2-butoxyethanol

0.5

110-80-5

2-ethoxyethanol

0.5

109-86-4

2-methoxyethanol

0.5

92-93-3

4-nitrobiphenol

0.5

100-02-7

4-nitrophenol

0.5

75-05-8

acetonitrile

0.5

98-86-2

acetophenone

0.5

107-02-8

acrolein

0.04

79-10-7

acrylic acid

0.5

107-05-1

allyl chloride

0.5

C7440-36-0

antimony & compounds as sb

0.5

1309-64-4

antimony trioxide, as sb

0.5

7784-42-1

arsine

0.1

100-44-7

benzyl chloride

0.1

92-52-4

biphenyl

0.5

156-62-7

calcium cyanamide

0.5

105-60-2

caprolactam, dust

0.5

105-60-2

caprolactam, vapor

0.5

133-06-2

captan

0.5

63-25-2

carbaryl

0.5

75-15-0

carbon disulfide

0.5

463-58-1

carbonyl sulfide

0.5

120-80-9

catechol

0.5

7782-50-5

chlorine

0.1

79-11-8

chloroacetic acid

0.1

532-27-4

chloroacetophenone, alpha-

0.06

108-90-7

chlorobenzene

0.5

C7440-47-3

chromium (ii) compounds, as cr

0.5

C7440-47-3

chromium (iii) compounds, cr

0.5

10210-68-1

cobalt carbonyl, as co

0.1

7440-48-4

cobalt, as co metal dust, fume

0.1

1319-77-3

cresols/cresylic acid, (isomers and mixture)

0.5

95-48-7

o-cresol

0.5

108-39-4

m-cresol

0.5

106-44-5

p-cresol

0.5

98-82-8

cumene

0.5

51-12-5

cyanides, as cn

0.5

84-74-2

dibutyl phthalate

0.5

111-42-2

diethanolamine

0.5

60-11-7

dimethyl aminoazobenzene

0.5

121-69-7

dimethylaniline

0.5

68-12-2

dimethylformamide

0.5

131-11-3

dimethylphthalate

0.5

100-41-4

ethyl benzene

0.5

75-00-3

ethyl chloride

0.5

107-21-1

ethylene glycol

0.5

111-76-2

ethylene glycol monobutyl ether

0.5

———

glycol ethers (except for listed ones)

0.5

77-47-4

hexachlorocyclopentadiene

0.1

822-06-0

hexamethylene, 1, 6-diisocyanate

0.02

110-54-3

hexane (n-hexane)

0.5

110-54-3

hexane, other isomers

0.5

7647-01-0

hydrogen chloride

0.5

7664-39-3

hydrogen fluoride, as f

0.1

123-31-9

hydroquinone

0.5

78-59-1

isophorone

0.5

108-31-6

maleic anhydride

0.5

C7439-96-5

manganese dust & compounds

(except listed)

0.5

748-79-4

mercuric chloride

0.01

10045-94-0

mercuric nitrate

0.01

C7439-97-6

mercury, elemental

0

hylene, 1, 6-diisocyanate

0.02

110-54-3

hexane (n-hexane)

0.5

110-54-3

hexane, other isomers

0.5

7647-01-0

hydrogen chloride

0.5

7664-39-3

hydrogen fluoride, as f

0.1

123-31-9

hydroquinone

0.5

78-59-1

isophorone

0.5

108-31-6

maleic anhydride

0.5

C7439-96-5

manganese dust & compounds

(except listed)

0.5

748-79-4

mercuric chloride

0.01

10045-94-0

mercuric nitrate

0.01

C7439-97-6

mercury, elemental

0.01

72-43-5

methoxychlor

0.5

67-56-1

methyl alcohol

0.5

74-83-9

methyl bromide

0.5

74-87-3

methyl chloride

0.5

71-55-6

methyl chloroform (1, 1, 1-trichloroethane)

0.5

78-93-3

methyl ethyl ketone (mek)

0.5

74-88-4

methyl iodide

0.06

108-10-1

methyl isobutyl ketone

0.5

624-83-9

methyl isocyanate

0.1

80-62-6

methyl methacrylate

0.5

1634-04-4

methyl tert-butyl ether

0.5

12108-13-3

methylcyclopentadienyl manganese tricarbonyl

0.1

101-68-8

methylene bisphenyl isocyanate

0.1

91-20-3

naphthalene

0.5

98-95-3

nitrobenzene

0.5

106-50-3

p-phenylenediamine

0.5

56-38-2

parathion

0.1

108-95-2

phenol

0.1

62-38-4

phenyl mercuric acetate

0.01

75-44-5

phosgene

0.1

7803-51-2

phosphine

0.5

7723-14-0

phosphorus

0.1

85-44-9

phthalic anhydride

0.5

57-57-8

propiolactone, beta-

0.1

123-38-6

propionaldehyde

0.5

114-26-1

propoxur

0.5

106-51-4

quinone

0.5

C7782-49-2

selenium compounds, as se

0.5

7783-79-1

selenium hexafluoride, as se

0.5

7488-56-4

selenium sulfides (mono and di)

0.5

100-42-5

styrene monomer

0.5

78-00-2

tetraethyl lead, as pb

0.01

75-74-1

tetramethyl lead, as pb

0.01

7550-45-0

titanium tetrachloride

0.1

108-88-3

toluene

0.5

121-44-8

triethylamine

0.5

108-05-4

vinyl acetate

0.5

593-60-2

vinyl bromide

0.5

1330-20-7

xylenes (m-,o-,p-isomers)

0.5

79469

2-nitropropane

0.5

540841

2, 2, 4-trimethylpentane

0.5

95954

2, 4, 5-trichlorophenol

0.5

92671

4-aminobiphenyl

0.5

101779

4, 4'-methlenedianiline

0.5

534521

4, 6-dinitro-o-cresol and salts

0.1

60355

acetamide

0.5

1345046

antimony trisulfide

0.1

7783702

antimony pentafluoride

0.1

28300745

antimony potassium tartrate

0.5

133904

chloramben

0.5

———

chromium compounds, except hexavalent and tri

5

79469

2-nitropropane

0.5

540841

2, 2, 4-trimethylpentane

0.5

95954

2, 4, 5-trichlorophenol

0.5

92671

4-aminobiphenyl

0.5

101779

4, 4'-methlenedianiline

0.5

534521

4, 6-dinitro-o-cresol and salts

0.1

60355

acetamide

0.5

1345046

antimony trisulfide

0.1

7783702

antimony pentafluoride

0.1

28300745

antimony potassium tartrate

0.5

133904

chloramben

0.5

———

chromium compounds, except hexavalent and trivalent

0.5

10025737

chromic chloride

0.1

334883

diazomethane

0.5

64675

diethyl sulfate

0.5

62207765

fluomine

0.1

680319

hexamethylphosphoramide

0.01

12108133

methylcyclopentadienyl manganese

0.1

101688

methylene diphenyl diisocyanate

0.1

69892

N-nitrosomorpholine

0.5

90040

o-anisidine

0.5

———

polycyclic organic matter

0.01

151508

potassium cyanide

0.1

14339

sodium cyanide

0.1

10102188

sodium selenite

0.1

13410010

sodium selenate

0.1

96093

styrene oxide

0.5