| Cobalt | 121.29 |
| Ethylene oxide | 94.17 |
| Nickel compounds | 73.65 |
| Chromium | 48.29 |
| 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.) | 19.88 |
| Cadmium compounds | 7.31 |
| Nickel | 3.41 |
| Benzene | 3.15 |
| Acetaldehyde | 2.56 |
| Manganese | 1.26 |
| Diisocyanates | 0.90 |
| Toluene diisocyanate (mixed isomers) | 0.56 |
| Chlorine | 0.40 |
| Acrylonitrile | 0.29 |
| Ethylbenzene | 0.24 |
| Di(2-ethylhexyl) phthalate | 0.16 |
| Styrene | 0.12 |
| Butyl acrylate | 0.10 |
| Copper | 0.08 |
| Polycyclic aromatic compounds | 0.07 |
| Manganese compounds | 0.07 |
| Antimony compounds | 0.06 |
| Xylene (mixed isomers) | 0.05 |
| 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) | 0.05 |
| Triethylamine | 0.04 |
| Maleic anhydride | 0.03 |
| Formaldehyde | 0.03 |
| Nitric acid | 0.03 |
| Naphthalene | 0.03 |
| Lead | 0.02 |
| Acrylic acid | 0.02 |
| Cyanide compounds | 0.02 |
| Lead compounds | 0.01 |
| Methyl methacrylate | 0.01 |
| Mercury compounds | 0.01 |
| n-Butyl alcohol (1-Butanol) | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| Acetonitrile | 0.00 |
| Zinc compounds | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Vinyl acetate | 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 |
| Silver compounds | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Phenol | 0.00 |
| Acetophenone | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Ethylene glycol | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Silver | 0.00 |
| Ethyl acrylate | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Certain glycol ethers | 0.00 |
| Biphenyl | 0.00 |
| Cyclohexane | 0.00 |
| Mercury | 0.00 |
| Cumene | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Methanol | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Formic acid | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
