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

Link to law: http://apps.leg.wa.gov/wac/default.aspx?cite=173-401-531
Published: 2015

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WACs > Title 173 > Chapter 173-401 > Section 173-401-531











173-401-530    

173-401-532







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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

302-01-2 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

(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 0.5

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 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

2 ——— 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

[Statutory Authority: Chapter 70.94 RCW. WSR 94-11-105 (Order 93-30), § 173-401-531, filed 5/17/94, effective 6/17/94.]
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