| Ethylene oxide | 215,351.18 |
| 1,3-Butadiene | 5,639.04 |
| Polycyclic aromatic compounds | 1,950.60 |
| Benzene | 1,779.58 |
| Nickel compounds | 603.35 |
| Chromium compounds (except for chromite ore mined in the Transvaal Region of South Africa and the unreacted ore component of the chromite ore processing residue (COPR). COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has been combined with soda ash and kiln roasted at approximately 2,000 F.) | 547.11 |
| Hydrogen cyanide | 246.78 |
| Cobalt compounds | 240.40 |
| Propylene oxide | 176.89 |
| Hydrogen sulfide | 98.15 |
| Chloroform | 64.46 |
| Formaldehyde | 62.32 |
| Naphthalene | 54.31 |
| Acetaldehyde | 31.15 |
| Nitrobenzene | 29.55 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 26.51 |
| Butyl acrylate | 20.10 |
| Chromium | 19.43 |
| Acrylonitrile | 17.36 |
| Chlorine | 17.35 |
| Benzidine | 15.63 |
| Ethylbenzene | 14.15 |
| Dicyclopentadiene | 12.61 |
| 1,2-Dichloroethane | 10.08 |
| 1,4-Dioxane | 9.81 |
| Chlorophenols | 9.41 |
| Acrolein | 5.87 |
| Molybdenum trioxide | 4.96 |
| Hydroquinone | 4.06 |
| Acrylic acid | 3.95 |
| Thioacetamide | 3.58 |
| Methyl tert-butyl ether | 3.13 |
| Manganese compounds | 2.68 |
| Lead compounds | 2.47 |
| Hexachlorobenzene | 2.10 |
| Diisocyanates | 1.95 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1.79 |
| Xylene (mixed isomers) | 1.69 |
| 1,1-Dimethylhydrazine | 1.48 |
| 1,1,2,2-Tetrachloroethane | 1.30 |
| Aniline | 1.22 |
| Ammonia (includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts and other sources; 10 percent of total aqueous ammonia is reportable under this listing) | 1.16 |
| Aldrin | 1.07 |
| Chlorine dioxide | 0.99 |
| n-Hexane (Hexane) | 0.89 |
| Diethanolamine | 0.86 |
| Urethane | 0.75 |
| 1,2,4-Trimethylbenzene | 0.67 |
| 2,4,6-Trichlorophenol | 0.65 |
| Dioxin and dioxin-like compounds (Manufacturing; and the processing or otherwise use of dioxin and dioxin like compounds if the dioxin and dioxin like compounds are present as contaminants in a chemical and if they were created during the manufacturing of that chemical.) | 0.62 |
| Nickel | 0.61 |
| Thiourea | 0.53 |
| Chloromethane | 0.47 |
| 3,3'-Dimethylbenzidine | 0.45 |
| Mercury compounds | 0.41 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.40 |
| Amitrole | 0.40 |
| 4-Dimethylaminoazobenzene | 0.35 |
| Carbonyl sulfide | 0.34 |
| Ethylene glycol | 0.34 |
| Methyl acrylate | 0.33 |
| 2,4-Diaminotoluene (2,4-Toluenediamine) | 0.32 |
| Acrylamide | 0.32 |
| 1,1,2-Trichloroethane | 0.25 |
| Zinc compounds | 0.25 |
| Copper | 0.23 |
| Lindane | 0.19 |
| Propylene | 0.18 |
| Ethylene | 0.18 |
| Chlorobenzilate | 0.16 |
| Methyl hydrazine | 0.16 |
| Lead | 0.15 |
| Vinyl acetate | 0.13 |
| 1,2-Diphenylhydrazine | 0.13 |
| Polychlorinated biphenyls | 0.12 |
| Biphenyl | 0.12 |
| 4,4'-Methylenedianiline | 0.11 |
| Tetrachloroethylene | 0.11 |
| Boron trifluoride | 0.11 |
| Heptachlor | 0.11 |
| Styrene | 0.11 |
| 2-Methoxyethanol | 0.10 |
| 2-Methyllactonitrile (Acetone cyanohydrin) | 0.10 |
| Trichloroethylene | 0.09 |
| Chlordane | 0.09 |
| Vanadium compounds | 0.08 |
| Certain glycol ethers | 0.07 |
| Benzyl chloride | 0.07 |
| Carbon tetrachloride | 0.07 |
| Manganese | 0.07 |
| Toluene diisocyanate (mixed isomers) | 0.06 |
| Cyanide compounds | 0.05 |
| Nitric acid | 0.05 |
| Toluene-2,4-diisocyanate | 0.05 |
| Toluene | 0.05 |
| Benzo[g,h,i]perylene | 0.04 |
| Pentachlorophenol | 0.04 |
| Pyridine | 0.04 |
| Antimony compounds | 0.03 |
| Sodium fluoroacetate | 0.03 |
| Malononitrile | 0.03 |
| Acetonitrile | 0.03 |
| 1,2,4-Trichlorobenzene | 0.03 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.03 |
| o-Xylene | 0.03 |
| m-Xylene | 0.03 |
| Propionaldehyde | 0.03 |
| Allyl chloride | 0.03 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.02 |
| Cyclohexane | 0.02 |
| p-Xylene | 0.02 |
| Toxaphene | 0.02 |
| Phenol | 0.02 |
| 1,2-Phenylenediamine | 0.02 |
| Methanol | 0.02 |
| tert-Butyl alcohol (tert-Butanol) | 0.02 |
| o-Toluidine | 0.02 |
| Epichlorohydrin | 0.01 |
| 2-Nitropropane | 0.01 |
| Methyl methacrylate | 0.01 |
| Aldicarb | 0.01 |
| Catechol | 0.01 |
| 1,1,1,2-Tetrachloroethane | 0.01 |
| Maleic anhydride | 0.01 |
| Cumene | 0.01 |
| Hexachloro-1,3-butadiene (Hexachlorobutadiene) | 0.01 |
| 1,4-Dichlorobenzene (p-Dichlorobenzene) | 0.01 |
| m-Dinitrobenzene | 0.01 |
| Carbon disulfide | 0.01 |
| Hexachloroethane | 0.01 |
| n-Butyl alcohol (1-Butanol) | 0.01 |
| Freon 113 (CFC-113) | 0.01 |
| Hexachlorophene | 0.00 |
| Allyl alcohol | 0.00 |
| Permethrin | 0.00 |
| Mercury | 0.00 |
| Chlorobenzene | 0.00 |
| 3,3'-Dimethoxybenzidine | 0.00 |
| Warfarin and salts | 0.00 |
| 2,4-Dichlorophenol | 0.00 |
| Ethylenebisdithiocarbamic acid, salts and esters | 0.00 |
| Cresol (mixed isomers) | 0.00 |
| Dichloromethane (Methylene chloride) | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| 2,4-Dinitrophenol | 0.00 |
| Triethylamine | 0.00 |
| Captan | 0.00 |
| Cumene hydroperoxide | 0.00 |
| Ethyl acrylate | 0.00 |
| Phthalic anhydride | 0.00 |
| Propargyl alcohol | 0.00 |
| 2,4-D | 0.00 |
| Sodium azide | 0.00 |
| Anthracene | 0.00 |
| Dicamba | 0.00 |
| Isobutyraldehyde | 0.00 |
| Sodium dicamba | 0.00 |
| Dimethoate | 0.00 |
| m-Cresol | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| p-Cresol | 0.00 |
| Pentachlorobenzene | 0.00 |
| 1,2-Dichlorobenzene (o-Dichlorobenzene) | 0.00 |
| 2,4,5-Trichlorophenol | 0.00 |
| 2-Ethoxyethanol | 0.00 |
| 1,3-Dichlorobenzene (m-Dichlorobenzene) | 0.00 |
| Formic acid | 0.00 |
| Methoxychlor | 0.00 |
| 1,1,1-Trichloroethane | 0.00 |
| o-Cresol | 0.00 |
| Sodium nitrite | 0.00 |
| 4,4'-Isopropylidenediphenol | 0.00 |
| Trichlorofluoromethane (CFC-11) | 0.00 |
| Dichlorodifluoromethane (CFC-12) | 0.00 |
| sec-Butyl alcohol (2-Butanol) | 0.00 |
| Thiram | 0.00 |
| Pendimethalin | 0.00 |
| Chloroethane | 0.00 |
| Chlorodifluoromethane (HCFC-22) | 0.00 |
| Acetamide | 0.00 |
| Acetophenone | 0.00 |
| Aluminum oxide (fibrous forms) (Alumina) | 0.00 |
| 4-Aminoazobenzene | 0.00 |
| 4-Aminobiphenyl | 0.00 |
| Atrazine | 0.00 |
| C.I. Solvent Yellow 34 (Auramine) | 0.00 |
| Benzal chloride | 0.00 |
| Bis(2-chloroethyl) ether | 0.00 |
| 1,2-Butylene oxide | 0.00 |
| Butyraldehyde | 0.00 |
| 3-Chloropropionitrile | 0.00 |
| Cyclohexanol | 0.00 |
| Di(2-ethylhexyl) phthalate | 0.00 |
| 1,2-Dibromoethane (Ethylene dibromide) | 0.00 |
| Dibutyl phthalate | 0.00 |
| 2,2-Dichloro-1,1,1-trifluoroethane (HCFC-123) | 0.00 |
| 1,4-Dichloro-2-butene | 0.00 |
| Dichlorobenzene (mixed isomers) | 0.00 |
| 1,2-Dichloroethylene | 0.00 |
| 1,3-Dichloropropylene (1,3-Dichloropropene) | 0.00 |
| Diepoxybutane | 0.00 |
| Dimethyl phthalate | 0.00 |
| Dimethyl sulfate | 0.00 |
| Dimethylamine | 0.00 |
| Dimethylcarbamoyl chloride | 0.00 |
| 2,4-Dimethylphenol | 0.00 |
| Dinitrobutyl phenol (Dinoseb) | 0.00 |
| Diphenylamine | 0.00 |
| Ethylidene dichloride (1,1-Dichloroethane) | 0.00 |
| Hydrazine | 0.00 |
| Lithium carbonate | 0.00 |
| Methyl chlorocarbonate | 0.00 |
| 2-Methylpyridine | 0.00 |
| Mustard gas | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| N-Methylolacrylamide | 0.00 |
| beta-Naphthylamine (2-Naphthalenamine) | 0.00 |
| alpha-Naphthylamine (1-Naphthalenamine) | 0.00 |
| Nicotine and salts | 0.00 |
| Osmium tetroxide | 0.00 |
| Paraldehyde | 0.00 |
| Paraquat dichloride | 0.00 |
| Pentachloroethane | 0.00 |
| p-Phenylenediamine | 0.00 |
| Piperonyl butoxide | 0.00 |
| Quinoline | 0.00 |
| Quinone | 0.00 |
| Simazine | 0.00 |
| Titanium tetrachloride | 0.00 |
| Trichloroacetyl chloride | 0.00 |
| Trypan blue | 0.00 |
| Vinyl chloride | 0.00 |
| Vinylidene chloride (1,1-Dichloroethylene) | 0.00 |
| p-Chloroaniline | 0.00 |
| trans-1,4-Dichloro-2-butene | 0.00 |
| Isoprene | 0.00 |
| Nonylphenol | 0.00 |
| 2-Propenoic acid, esters, 2-methyl-, dodecyl ester, polymer with α-fluoro-ω-[2-[(2-methyl-1-oxo-2-propen-1-yl)oxy]ethyl]poly(difluoromethylene) | 0.00 |
