| Cobalt | 352.70 |
| 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.) | 138.24 |
| Chromium | 88.94 |
| Nickel compounds | 42.31 |
| Trichloroethylene | 13.45 |
| Nickel | 9.82 |
| Polycyclic aromatic compounds | 8.08 |
| Cadmium compounds | 7.02 |
| Benzene | 3.86 |
| Toluene diisocyanate (mixed isomers) | 2.59 |
| Formaldehyde | 2.51 |
| Diisocyanates | 1.80 |
| Chloroform | 0.95 |
| Chlorine | 0.49 |
| Antimony compounds | 0.30 |
| Di(2-ethylhexyl) phthalate | 0.27 |
| Acrylonitrile | 0.24 |
| Xylene (mixed isomers) | 0.23 |
| Copper | 0.18 |
| Certain glycol ethers | 0.16 |
| Dichloromethane (Methylene chloride) | 0.06 |
| Naphthalene | 0.05 |
| Ethylbenzene | 0.05 |
| Lead | 0.04 |
| Acetonitrile | 0.03 |
| Nitric acid | 0.03 |
| Lead compounds | 0.03 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.02 |
| Butyl acrylate | 0.02 |
| Zinc compounds | 0.02 |
| Triethylamine | 0.02 |
| Maleic anhydride | 0.01 |
| Cyanide compounds | 0.01 |
| Manganese | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 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 |
| Phenol | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| 1,2,4-Trimethylbenzene | 0.01 |
| n-Hexane (Hexane) | 0.01 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.00 |
| Acrylic acid | 0.00 |
| Silver compounds | 0.00 |
| Methyl methacrylate | 0.00 |
| Styrene | 0.00 |
| Pyridine | 0.00 |
| Acetophenone | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Vinyl acetate | 0.00 |
| Mercury | 0.00 |
| Methanol | 0.00 |
| Silver | 0.00 |
| Ethylene glycol | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Propylene oxide | 0.00 |
| Ethyl acrylate | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Cyclohexane | 0.00 |
| Biphenyl | 0.00 |
| Cumene | 0.00 |
| Formic acid | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
