| Chromium | 1,214.01 |
| Cobalt | 171.80 |
| Nickel compounds | 92.74 |
| Ethylene oxide | 59.34 |
| Nickel | 40.70 |
| 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.) | 21.05 |
| Cadmium compounds | 6.41 |
| Benzene | 4.94 |
| Acetaldehyde | 2.26 |
| Diisocyanates | 0.96 |
| Butyl acrylate | 0.88 |
| Toluene diisocyanate (mixed isomers) | 0.71 |
| Manganese | 0.66 |
| Formaldehyde | 0.53 |
| Chlorine | 0.49 |
| Acrylonitrile | 0.43 |
| Di(2-ethylhexyl) phthalate | 0.29 |
| Maleic anhydride | 0.24 |
| Acrylic acid | 0.18 |
| Styrene | 0.17 |
| Ethylbenzene | 0.17 |
| Antimony compounds | 0.13 |
| Copper | 0.11 |
| Polycyclic aromatic compounds | 0.10 |
| Triethylamine | 0.07 |
| Manganese compounds | 0.06 |
| Nitric acid | 0.04 |
| Naphthalene | 0.04 |
| Vinyl acetate | 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 |
| Xylene (mixed isomers) | 0.03 |
| Lead | 0.02 |
| Methyl methacrylate | 0.02 |
| Certain glycol ethers | 0.02 |
| Lead compounds | 0.02 |
| Cyanide compounds | 0.02 |
| N,N-Dimethylformamide | 0.01 |
| Acetonitrile | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| 1,2,4-Trimethylbenzene | 0.01 |
| Mercury compounds | 0.01 |
| Zinc compounds | 0.01 |
| n-Butyl alcohol (1-Butanol) | 0.01 |
| Phenol | 0.00 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Acetophenone | 0.00 |
| Toluene | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Silver compounds | 0.00 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.00 |
| Ethylene glycol | 0.00 |
| Ethyl acrylate | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Silver | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Biphenyl | 0.00 |
| Methanol | 0.00 |
| Cyclohexane | 0.00 |
| Mercury | 0.00 |
| Cumene | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Formic acid | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
