| Cobalt | 211.80 |
| Chromium | 80.49 |
| Formaldehyde | 72.63 |
| 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.) | 58.61 |
| Trichloroethylene | 16.02 |
| Nickel | 8.38 |
| Nickel compounds | 7.49 |
| Cadmium compounds | 3.31 |
| Benzene | 1.35 |
| Diisocyanates | 1.30 |
| Toluene diisocyanate (mixed isomers) | 0.88 |
| Chloroform | 0.78 |
| Polycyclic aromatic compounds | 0.42 |
| Dichloromethane (Methylene chloride) | 0.39 |
| Chlorine | 0.28 |
| Phenol | 0.15 |
| Copper | 0.13 |
| Di(2-ethylhexyl) phthalate | 0.12 |
| Xylene (mixed isomers) | 0.11 |
| Antimony compounds | 0.07 |
| Ethylbenzene | 0.04 |
| Naphthalene | 0.03 |
| Lead | 0.03 |
| Certain glycol ethers | 0.03 |
| n-Hexane (Hexane) | 0.03 |
| Lead compounds | 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) | 0.01 |
| Acetonitrile | 0.01 |
| Butyl acrylate | 0.01 |
| Zinc compounds | 0.01 |
| Nitric acid | 0.01 |
| Manganese | 0.01 |
| Maleic anhydride | 0.01 |
| Toluene | 0.00 |
| Cyanide compounds | 0.00 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| Silver compounds | 0.00 |
| Acrylic acid | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Methanol | 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 |
| Aluminum (fume or dust) | 0.00 |
| Styrene | 0.00 |
| Propylene oxide | 0.00 |
| Vinyl acetate | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Mercury | 0.00 |
| Silver | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Ethylene glycol | 0.00 |
| Cyclohexane | 0.00 |
| Methyl methacrylate | 0.00 |
| Ethyl acrylate | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Cumene | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
