Cal. Code Regs. Tit. 17, § 93001 - Hazardous Air Pollutants Identified as Toxic Air Contaminants

Each substance listed in this section has been identified as a hazardous air pollutant pursuant to subsection (b) of Section 112 of the federal Clean Air Act (42 U.S.C. Section 7412(b)) and has been designated by the State Board to be a toxic air contaminant pursuant to Health and Safety Code Section 39657.

	Substance
	Acetaldehyde
	Acetamide
	Acetonitrile
	Acetophenone
	2-Acetylaminofluorene
	Acrolein
	Acrylamide
	Acrylic acid
	Acrylonitrile
	Allyl chloride
	4-Aminobiphenyl
	Aniline
	o-Anisidine
	Asbestos
	Benzene (including benzene from gasoline)
	Benzidine
	Benzotrichloride
	Benzyl chloride
	Biphenyl
	Bis (2-ethylhexyl) phthalate (DEHP)
	Bis (chloromethyl) ether
	Bromoform
	1,3-Butadiene
	Calcium cyanamide
	Caprolactam
	Captan
	Carbaryl
	Carbon disulfide
	Carbon tetrachloride
	Carbonyl sulfide
	Catechol
	Chloramben
	Chlordane
	Chlorine
	Chloroacetic acid
	2-Chloroacetophenone
	Chlorobenzene
	Chlorobenzilate
	Chloroform
	Chloromethyl methyl ether
	Chloroprene
	Cresols/Cresylic acid (isomers and mixture)
	o-Cresol
	m-Cresol
	p-Cresol
	Cumene
	2,4-D, salts and esters
	DDE
	Diazomethane
	Dibenzofurans
	1,2-Dibromo-3-chloropropane
	Dibutylphthalate
	1,4-Dichlorobenzene (p)
	3,3-Dichlorobenzidene
	Dichloroethyl ether (Bis (2-chloroethyl) ether)
	1,3-Dichloropropene
	Dichlorvos
	Diethanolamine
	N.N-Diethyl aniline (N.N-Dimethylaniline)
	Diethyl sulfate
	3,3-Dimethoxybenzidine
	Dimethyl aminoazobenzene
	3,3-Dimethyl benzidine
	Dimethyl carbamoyl chloride
	Dimethyl formamide
	1,1-Dimethyl hydrazine
	Dimethyl phthalate
	Dimethyl sulfate
	4,6-Dinitro-o-cresol, and salts
	2,4-Dinitrophenol
	2,4-Dinitrotoluene
	1,4-Dioxane (1,4-Diethyleneoxide)
	1,2-Diphenylhydrazine
	Epichlorohydrin (1-Chloro-2,3-epoxypropane)
	1,2-Epoxybutane
	Ethyl acrylate
	Ethyl benzene
	Ethyl carbamate (Urethane)
	Ethyl chloride (Chloroethane)
	Ethylene dibromide (Dibromoethane)
	Ethylene dichloride (1,2-Dichloroethane)
	Ethylene glycol
	Ethylene imine (Aziridine)
	Ethylene oxide
	Ethylene thiourea
	Ethylidene dichloride (1,1-Dichloroethane)
	Formaldehyde
	Heptachlor
	Hexachlorobenzene
	Hexachlorobutadiene
	Hexachlorocyclopentadiene
	Hexachloroethane
	Hexamethylene-1,6-diisocyanate
	Hexamethylphosphoramide
	Hexane
	Hydrazine
	Hydrochloric acid
	Hydrogen fluoride (Hydrofluoric acid)
	Hydroquinone
	Isophorone
	Lindane (all isomers)
	Maleic anhydride
	Methanol
	Methoxychlor
	Methyl bromide (Bromomethane)
	Methyl chloride (Chloromethane)
	Methyl chloroform (1,1,1-Trichloroethane)
	Methyl ethyl ketone (2-Butanone)
	Methyl hydrazine
	Methyl iodide (Iodomethane)
	Methyl isobutyl ketone (Hexone)
	Methyl isocyanate
	Methyl methacrylate
	Methyl tert butyl ether
	4,4-Methylene bis(2-chloroaniline)
	Methylene chloride (Dichloromethane)
	Methylene diphenyl diisocyanate (MDI)
	4,4-Methylenedianiline
	Naphthalene
	Nitrobenzene
	4-Nitrobiphenyl
	4-Nitrophenol
	2-Nitropropane
	N-Nitroso-N-methylurea
	N-Nitrosodimethylamine
	N-Nitrosomorpholine
	Parathion
	Pentachloronitrobenzene (Quintobenzene)
	Pentachlorophenol
	Phenol
	p-Phenylenediamine
	Phosgene
	Phosphine
	Phosphorus
	Phthalic anhydride
	Polychlorinated biphenyls (Aroclors)
	1,3-Propane sultone
	beta-Propiolactone
	Propionaldehyde
	Propoxur (Baygon)
	Prophylene dichloride (1,2-Dichloropropane)
	Propylene oxide
	1,2-Propylenimine (2-Methylaziridine)
	Quinoline
	Quinone
	Styrene
	Styrene oxide
	2,3,7,8-Tetrachlorodibenzo-p-dioxin
	1,1,2,2-Tetrachloroethane
	Tetrachloroethylene (Perchloroethylene)
	Titanium tetrachloride
	Toluene
	2,4-Toluene diamine
	2,4-Toluene diisocyanate
	o-Toluidine
	Toxaphene (chlorinated camphene)
	1,2,4-Trichlorobenzene
	1,1,2-Trichloroethane
	Trichloroethylene
	2,4,5-Trichlorophenol
	2,4,6-Trichlorophenol
	Triethylamine
	Trifluralin
	2,2,4-Trimethylpentane
	Vinyl acetate
	Vinyl bromide
	Vinyl chloride
	Vinylidene chloride (1,1-Dichloroethylene)
	Xylenes (isomers and mixture)
	o-Xylenes
	m-Xylenes
	p-Xylenes
	Antimony Compounds
	Arsenic Compounds (inorganic including arsine)
	Beryllium Compounds
	Cadmium Compounds
	Chromium Compounds
	Cobalt Compounds
	Coke Oven Emissions
	Cyanide Compounds1
	Glycol ethers2
	Lead Compounds
	Manganese Compounds
	Mercury Compounds
	Fine mineral fibers3
	Nickel Compounds
	Polycyclic Organic Matter4
	Radionuclides (including radon)5
	Selenium Compounds
NOTE: For all listing above which contain the word "compounds" and for glycol ethers, the following applies: Unless otherwise specified, these listings are defined as including any unique chemical substance that contains the named chemical (i.e., antimony, arsenic, etc) as part of that chemical's infrastructure.
1 X1CN where X=HN1 or any other group where a formal dissociation may occur. For example KCN or Ca(CN)2
2 includes mono- and di-ethers of ethylene glycol, diethylene glycol, and triethylene glycol (R(OCH2CH2)n-OR1 where
n = 1,2 or 3
R = alkyl or aryl groups
R1 = R, H, or groups which, when removed, yield glycol ethers with the structure;
R(OCH2CH)n-OH. Polymers are excluded from the glycol category.
3 includes mineral fiber emissions from facilities manufacturing or processing glass, rock, or slag fibers (or other mineral derived fibers) of average diameter 1 micrometer or less.
4 includes organic compounds with more than one benzene ring, and which have a boiling point greater than or equal to 100°C.
5 a type of atom which spontaneously undergoes radioactive decay.

Notes

Cal. Code Regs. Tit. 17, § 93001

1. New section filed 3-9-94; operative 4-8-94. Submitted to OAL for printing only (Register 94, No. 10).

Note: Authority cited: Sections 39657, 39600, 39601 and 39662, Health and Safety Code. Reference: Sections 39650, 39655, 39656, 39657, 39658, 39659, 39660, 39661 and 39662, Health and Safety Code.

1. New section filed 3-9-94; operative 4-8-94. Submitted to OAL for printing only (Register 94, No. 10).