| Cobalt | 166.82 |
| 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.) | 94.81 |
| Ethylene oxide | 77.21 |
| Nickel compounds | 61.08 |
| Chromium | 33.70 |
| Cadmium compounds | 10.44 |
| Benzene | 8.84 |
| Acetaldehyde | 4.19 |
| Nickel | 2.24 |
| Diisocyanates | 1.82 |
| Toluene diisocyanate (mixed isomers) | 0.89 |
| Acrylonitrile | 0.69 |
| Chlorine | 0.66 |
| Formaldehyde | 0.40 |
| Ethylbenzene | 0.37 |
| Di(2-ethylhexyl) phthalate | 0.33 |
| Polycyclic aromatic compounds | 0.16 |
| Triethylamine | 0.15 |
| Antimony compounds | 0.13 |
| Butyl acrylate | 0.13 |
| Manganese | 0.13 |
| Copper | 0.11 |
| Manganese compounds | 0.11 |
| Xylene (mixed isomers) | 0.07 |
| Styrene | 0.07 |
| Naphthalene | 0.07 |
| Methyl methacrylate | 0.06 |
| Nitric acid | 0.06 |
| Maleic anhydride | 0.05 |
| Lead | 0.03 |
| Acrylic acid | 0.03 |
| Cyanide compounds | 0.02 |
| Lead compounds | 0.02 |
| Certain glycol ethers | 0.02 |
| 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) | 0.02 |
| N,N-Dimethylformamide | 0.01 |
| 1,2,4-Trimethylbenzene | 0.01 |
| n-Butyl alcohol (1-Butanol) | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Acetonitrile | 0.01 |
| Mercury compounds | 0.01 |
| Zinc compounds | 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 |
| Vinyl acetate | 0.01 |
| n-Hexane (Hexane) | 0.00 |
| Phenol | 0.00 |
| Silver compounds | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Acetophenone | 0.00 |
| Toluene | 0.00 |
| Ethylene glycol | 0.00 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.00 |
| Silver | 0.00 |
| Ethyl acrylate | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Mercury | 0.00 |
| Cyclohexane | 0.00 |
| Methanol | 0.00 |
| Cumene | 0.00 |
| Biphenyl | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 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 |
