| 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.) | 228.18 |
| Cobalt | 143.95 |
| Chromium | 92.46 |
| Toluene diisocyanate (mixed isomers) | 77.87 |
| Nickel compounds | 36.95 |
| Cadmium compounds | 23.75 |
| Ethylene oxide | 15.97 |
| Nickel | 13.23 |
| Benzene | 4.48 |
| Diisocyanates | 2.57 |
| Polycyclic aromatic compounds | 1.27 |
| Formaldehyde | 1.25 |
| Chlorine | 1.08 |
| Chloroform | 1.01 |
| Di(2-ethylhexyl) phthalate | 0.61 |
| Antimony compounds | 0.43 |
| Acrylonitrile | 0.35 |
| Copper | 0.31 |
| Xylene (mixed isomers) | 0.11 |
| Lead | 0.09 |
| Ethylbenzene | 0.09 |
| Acetonitrile | 0.08 |
| Naphthalene | 0.06 |
| Certain glycol ethers | 0.06 |
| Nitric acid | 0.05 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.04 |
| Lead compounds | 0.04 |
| 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) | 0.04 |
| Butyl acrylate | 0.03 |
| Zinc compounds | 0.03 |
| Dichloromethane (Methylene chloride) | 0.03 |
| Triethylamine | 0.03 |
| Cyanide compounds | 0.03 |
| Maleic anhydride | 0.02 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.02 |
| Manganese | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Acrylic acid | 0.01 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.01 |
| 1,2,4-Trimethylbenzene | 0.01 |
| Silver compounds | 0.01 |
| Methyl methacrylate | 0.01 |
| Phenol | 0.01 |
| Pyridine | 0.00 |
| Styrene | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Acetophenone | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Vinyl acetate | 0.00 |
| Mercury compounds | 0.00 |
| Mercury | 0.00 |
| Silver | 0.00 |
| Methanol | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Ethyl acrylate | 0.00 |
| Propylene oxide | 0.00 |
| Ethylene glycol | 0.00 |
| Cyclohexane | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Cumene | 0.00 |
| Biphenyl | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Formic acid | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
