40 CFR Table 2 to Subpart JJ of Part 63
List of Volatile Hazardous Air Pollutants
June 9, 2020
Open Table
| Chemical name | CAS No. |
|---|---|
| Acetaldehyde | 75070 |
| Acetamide | 60355 |
| Acetonitrile | 75058 |
| Acetophenone | 98862 |
| 2-Acetylaminofluorine | 53963 |
| Acrolein | 107028 |
| Acrylamide | 79061 |
| Acrylic acid | 79107 |
| Acrylonitrile | 107131 |
| Allyl chloride | 107051 |
| 4-Aminobiphenyl | 92671 |
| Aniline | 62533 |
| o-Anisidine | 90040 |
| Benzene | 71432 |
| Benzidine | 92875 |
| Benzotrichloride | 98077 |
| Benzyl chloride | 100447 |
| Biphenyl | 92524 |
| Bis (2-ethylhexyl) phthalate (DEHP) | 117817 |
| Bis (chloromethyl) ether | 542881 |
| Bromoform | 75252 |
| 1,3-Butadiene | 106990 |
| Carbon disulfide | 75150 |
| Carbon tetrachloride | 56235 |
| Carbonyl sulfide | 463581 |
| Catechol | 120809 |
| Chloroacetic acid | 79118 |
| 2-Chloroacetophenone | 532274 |
| Chlorobenzene | 108907 |
| Chloroform | 67663 |
| Chloromethyl methyl ether | 107302 |
| Chloroprene | 126998 |
| Cresols (isomers and mixture) | 1319773 |
| o-Cresol | 95487 |
| m-Cresol | 108394 |
| p-Cresol | 106445 |
| Cumene | 98828 |
| 2,4-D (2,4-Dichlorophenoxyacetic acid, including salts and esters) | 94757 |
| DDE (1,1-Dichloro-2,2-bis(p-chlorophenyl)ethylene) | 72559 |
| Diazomethane | 334883 |
| Dibenzofuran | 132649 |
| 1,2-Dibromo-3-chloropropane | 96128 |
| Dibutylphthalate | 84742 |
| 1,4-Dichlorobenzene | 106467 |
| 3,3′-Dichlorobenzidine | 91941 |
| Dichloroethyl ether (Bis(2-chloroethyl)ether) | 111444 |
| 1,3-Dichloropropene | 542756 |
| Diethanolamine | 111422 |
| N,N-Dimethylaniline | 121697 |
| Diethyl sulfate | 64675 |
| 3,3′-Dimethoxybenzidine | 119904 |
| 4-Dimethylaminoazobenzene | 60117 |
| 3,3′-Dimethylbenzidine | 119937 |
| Dimethylcarbamoyl chloride | 79447 |
| N,N-Dimethylformamide | 68122 |
| 1,1-Dimethylhydrazine | 57147 |
| Dimethyl phthalate | 131113 |
| Dimethyl sulfate | 77781 |
| 4,6-Dinitro-o-cresol, and salts | 534521 |
| 2,4-Dinitrophenol | 51285 |
| 2,4-Dinitrotoluene | 121142 |
| 1,4-Dioxane (1,4-Diethyleneoxide) | 123911 |
| 1,2-Diphenylhydrazine | 122667 |
| Epichlorohydrin (1-Chloro-2,3-epoxypropane) | 106898 |
| 1,2-Epoxybutane | 106887 |
| Ethyl acrylate | 140885 |
| Ethylbenzene | 100414 |
| Ethyl carbamate (Urethane) | 51796 |
| Ethyl chloride (Chloroethane) | 75003 |
| Ethylene dibromide (Dibromoethane) | 106934 |
| Ethylene dichloride (1,2-Dichloroethane) | 107062 |
| Ethylene glycol | 107211 |
| Ethylene oxide | 75218 |
| Ethylenethiourea | 96457 |
| Ethylidene dichloride (1,1-Dichloroethane) | 75343 |
| Formaldehyde | 50000 |
| Glycolethersa | |
| Hexachlorobenzene | 118741 |
| Hexachloro-1,3-butadiene | 87683 |
| Hexachloroethane | 67721 |
| Hexamethylene-1,6-diisocyanate | 822060 |
| Hexamethylphosphoramide | 680319 |
| Hexane | 110543 |
| Hydrazine | 302012 |
| Hydroquinone | 123319 |
| Isophorone | 78591 |
| Maleic anhydride | 108316 |
| Methanol | 67561 |
| Methyl bromide (Bromomethane) | 74839 |
| Methyl chloride (Chloromethane) | 74873 |
| Methyl chloroform (1,1,1-Trichloroethane) | 71556 |
| Methyl ethyl ketone (2-Butanone) | 78933 |
| Methylhydrazine | 60344 |
| Methyl iodide (Iodomethane) | 74884 |
| Methyl isobutyl ketone (Hexone) | 108101 |
| Methyl isocyanate | 624839 |
| Methyl methacrylate | 80626 |
| Methyl tert-butyl ether | 1634044 |
| 4,4′-Methylenebis (2-chloroaniline) | 101144 |
| Methylene chloride (Dichloromethane) | 75092 |
| 4,4′-Methylenediphenyl diisocyanate (MDI) | 101688 |
| 4,4′-Methylenedianiline | 101779 |
| Naphthalene | 91203 |
| Nitrobenzene | 98953 |
| 4-Nitrobiphenyl | 92933 |
| 4-Nitrophenol | 100027 |
| 2-Nitropropane | 79469 |
| N-Nitroso-N-methylurea | 684935 |
| N-Nitrosodimethylamine | 62759 |
| N-Nitrosomorpholine | 59892 |
| Phenol | 108952 |
| p-Phenylenediamine | 106503 |
| Phosgene | 75445 |
| Phthalic anhydride | 85449 |
| Polychlorinated biphenyls (Aroclors) | 1336363 |
| Polycyclic Organic Matterb | |
| 1,3-Propane sultone | 1120714 |
| beta-Propiolactone | 57578 |
| Propionaldehyde | 123386 |
| Propoxur (Baygon) | 114261 |
| Propylene dichloride (1,2-Dichloropropane) | 78875 |
| Propylene oxide | 75569 |
| 1,2-Propylenimine (2-Methyl aziridine) | 75558 |
| Quinone | 106514 |
| Styrene | 100425 |
| Styrene oxide | 96093 |
| 2,3,7,8-Tetrachlorodibenzo-p-dioxin | 1746016 |
| 1,1,2,2-Tetrachloroethane | 79345 |
| Tetrachloroethylene (Perchloroethylene) | 127184 |
| Toluene | 108883 |
| 2,4-Toluenediamine | 95807 |
| Toluene-2,4-diisocyanate | 584849 |
| o-Toluidine | 95534 |
| 1,2,4-Trichlorobenzene | 120821 |
| 1,1,2-Trichloroethane | 79005 |
| Trichloroethylene | 79016 |
| 2,4,5-Trichlorophenol | 95954 |
| 2,4,6-Trichlorophenol | 88062 |
| Triethylamine | 121448 |
| Trifluralin | 1582098 |
| 2,2,4-Trimethylpentane | 540841 |
| Vinyl acetate | 108054 |
| Vinyl bromide | 593602 |
| Vinyl chloride | 75014 |
| Vinylidene chloride (1,1-Dichloroethylene) | 75354 |
| Xylenes (isomers and mixture) | 1330207 |
| o-Xylene | 95476 |
| m-Xylene | 108383 |
| p-Xylene | 106423 |
aIncludes mono- and di-ethers of ethylene glycol, diethylene glycols and triethylene glycol; R-(OCH2CH2) RR-OR where:
n = 1, 2, or 3,
R = alkyl or aryl groups
R′= R, H, or groups which, when removed, yield glycol ethers with the structure: R-(OCH2CH2)n—OH. Polymers are excluded from the glycol category.
bIncludes organic compounds with more than one benzene ring, and which have a boiling point greater than or equal to 100°C.
[63 FR 71381, Dec. 28, 1998]
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