| Nickel compounds | 1,540.48 |
| Cobalt | 120.21 |
| Chromium | 35.72 |
| 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.) | 11.74 |
| Diisocyanates | 7.13 |
| Nickel | 7.00 |
| Cadmium compounds | 4.32 |
| Benzene | 2.17 |
| Acetaldehyde | 1.32 |
| Toluene diisocyanate (mixed isomers) | 0.58 |
| Chlorine | 0.30 |
| Acrylonitrile | 0.20 |
| Manganese | 0.14 |
| Di(2-ethylhexyl) phthalate | 0.13 |
| Ethylbenzene | 0.08 |
| Copper | 0.07 |
| Butyl acrylate | 0.07 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.06 |
| Antimony compounds | 0.06 |
| Nitric acid | 0.05 |
| Formaldehyde | 0.04 |
| Manganese compounds | 0.04 |
| Maleic anhydride | 0.03 |
| Naphthalene | 0.02 |
| Polycyclic aromatic compounds | 0.02 |
| Xylene (mixed isomers) | 0.02 |
| Triethylamine | 0.02 |
| Lead | 0.02 |
| Acrylic acid | 0.01 |
| Styrene | 0.01 |
| Lead compounds | 0.01 |
| Zinc compounds | 0.01 |
| Cyanide compounds | 0.01 |
| Methyl methacrylate | 0.01 |
| Methyl isobutyl ketone | 0.01 |
| Acetonitrile | 0.01 |
| 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) | 0.01 |
| Mercury compounds | 0.00 |
| Zinc (fume or dust) | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Vinyl acetate | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Silver compounds | 0.00 |
| Hydrogen fluoride (Hydrofluoric acid) | 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 |
| Toluene | 0.00 |
| Ethylene glycol | 0.00 |
| Biphenyl | 0.00 |
| Silver | 0.00 |
| Ethyl acrylate | 0.00 |
| Certain glycol ethers | 0.00 |
| Cumene | 0.00 |
| Cyclohexane | 0.00 |
| Mercury | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Methanol | 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 |
| Acetophenone | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
