Air Pollutants unique to Federal HAPs List Acetonitrile Acetophenone Acetylaminofluorene, 2Acrylamide Acrylic acid Allyl chloride Aminobiphenyl, 4Anisidine, oAntimony compounds Benzotrichloride Biphenyl Bromoform Calcium cyanamide Captan Carbaryl Carbonyl sulfide Catechol Chloramben Chlordane Chloroacetic acid Chloroacetophenone, 2Chlorobenzilate Chloromethyl methyl ether Cobalt compounds Coke oven emissions Cresol/Cresylic Acid (isomers and mixtures) Cresol, mCresol, oCresol, pCumene D, 2,4 (salts & esters) DDE Diazomethane Dibenzofurans Dibromo-3-chloropropane, 1,2Dibutylphthalate Dichlorobenzidene, 3,3Dichloroethyl ether Dichloropropene, 1,3Dichlorvos Diethanolamine Diethyl aniline, N,NDiethyl sulfate Dimethyl benzidine, 3,3Dimethyl aminoazobenzene

CAS No. 75-05-8 98-86-2 53-96-3 79-06-1 79-10-7 107-05-1 92-67-1 90-04-0 7440-36-0 98-07-7 92-52-4 75-25-2 156-62-7 133-06-2 63-25-2 463-58-1 120-80-9 133-90-4 57-74-9 79-11-8 532-27-4 510-15-6 107-30-2 Various Various Various 108-39-4 95-48-7 106-44-5 98-82-8 94-75-7 3547-04-4 334-88-3 132-64-9 96-12-8 84-74-2 91-94-1 111-44-4 542-75-6 62-73-7 111-42-2 121-69-7 64-67-5 119-93-7 60-11-7

Air Pollutants unique to Federal HAPs List Dimethoxybenzidine, 3,3Dimethyl carbamoyl chloride Dimethyl formamide Dimethyl hydrazine, 1,1Dimethyl phthalate Dinitro-o-cresol, 4,6- (& salts) Dinitrophenol, 2,4Dinitrotoluene, 2,4Diphenylhydrazine, 1,2Epoxybutane, 1,2Ethyl acrylate Ethyl benzene Ethyl carbamate (urethane) Ethyl chloride (chloroethane) Ethylene glycol Ethylene thiourea Ethylidene dichloride (1,1-dichloroethane) Fine mineral fibers Heptachlor Hexachlorobenzene Hexachlorobutadiene Hexachloroethane Hexamethylene-1,6-diisocyanate Hexamethylphosphoramide Hydroquinone Isophorone Lead compounds Lindane (all isomers) Methanol Methoxychlor Methyl bromide Methyl chloride Methyl hydrazine Methyl iodide Methyl isocyanate Methyl methacrylate Methyl tertiary butyl ether Methylene bis(2-chloroaniline), 4,4Methylene diphenyl diisocyanate (MDI) Methylenedianiline, 4,4Napthalene Nitrobiphenyl, 4Nitrophenol, 4Nitropropane, 2Nitrosomorpholine, N-

CAS No. 119-90-4 79-44-7 68-12-2 57-14-7 131-11-3 534-52-1 51-28-5 121-14-2 122-66-7 106-88-7 140-88-5 100-41-4 51-79-6 75-00-3 107-21-1 96-45-7 75-34-3 N/A 76-44-8 118-74-1 87-68-3 67-72-1 822-06-0 680-31-9 123-31-9 78-59-1 Various 58-89-9 67-56-1 72-43-5 74-83-9 74-87-3 60-34-4 74-88-4 624-83-9 80-62-6 1634-04-4 101-14-4 101-68-8 101-77-9 91-20-3 92-93-3 100-02-7 79-46-9 59-89-2

Air Pollutants unique to Federal HAPs List Nitroso-N-methylurea, NParathion Pentachloronitrobenzene Phenylenediamine, pPhosphorus Phthalic anhydride Propane sultone, 1,3Propiolactone, bPropionaldehyde Propoxur (baygon) Propylene dichloride Propylene oxide Propylenimine, 1,2Quinoline Quinone Radionuclides (including radon) Selenium compounds Styrene oxide Titanium tetrachloride Toluene diamine, 2,4Toluidine, oToxaphene Trichlorobenzene, 1,2,4Trichloroethane, 1,1,2Trichlorophenol, 2,4,5Trichlorophenol, 2,4,6Triethylamine Trifluralin Trimethylpentane, 2,2,4Vinyl acetate Vinyl bromide Xylene, mXylene, oXylene, p-

CAS No. 684-93-5 56-38-2 82-68-8 106-50-3 7723-14-0 85-44-9 1120-71-4 57-57-8 123-38-6 114-26-1 78-87-5 75-56-9 75-55-8 91-22-5 106-51-4 Various Various 96-09-3 7550-45-0 95-80-7 95-53-4 8001-35-2 120-82-1 79-00-5 95-95-4 88-06-2 121-44-8 1582-09-8 540-84-1 108-05-4 593-60-2 108-38-3 95-47-6 106-42-3