| Nickel compounds | 1,094.92 |
| Cobalt | 110.76 |
| Chromium | 32.38 |
| 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.) | 11.37 |
| Diisocyanates | 5.82 |
| Nickel | 5.43 |
| Benzene | 1.94 |
| Acetaldehyde | 1.30 |
| Acrylonitrile | 0.18 |
| Di(2-ethylhexyl) phthalate | 0.11 |
| Manganese | 0.11 |
| Chlorine | 0.09 |
| Ethylbenzene | 0.08 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.06 |
| Copper | 0.06 |
| Antimony compounds | 0.05 |
| Butyl acrylate | 0.05 |
| Nitric acid | 0.04 |
| Manganese compounds | 0.04 |
| Formaldehyde | 0.03 |
| Maleic anhydride | 0.02 |
| Naphthalene | 0.02 |
| Polycyclic aromatic compounds | 0.02 |
| Xylene (mixed isomers) | 0.02 |
| Lead | 0.01 |
| Triethylamine | 0.01 |
| Styrene | 0.01 |
| Lead compounds | 0.01 |
| Acrylic acid | 0.01 |
| Zinc compounds | 0.01 |
| Mercury compounds | 0.01 |
| Methyl methacrylate | 0.01 |
| Acetonitrile | 0.00 |
| 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) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| Cyanide compounds | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 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 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.00 |
| Ethylene glycol | 0.00 |
| Toluene | 0.00 |
| Biphenyl | 0.00 |
| Silver | 0.00 |
| Ethyl acrylate | 0.00 |
| Certain glycol ethers | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| Mercury | 0.00 |
| Silver compounds | 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 |
