| Cobalt | 1,348.98 |
| Chromium | 499.23 |
| Trichloroethylene | 98.26 |
| 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.) | 67.58 |
| Hydrazine | 61.92 |
| Diisocyanates | 46.99 |
| Nickel compounds | 43.56 |
| Lead | 42.47 |
| Chloroform | 42.12 |
| Nickel | 20.80 |
| Ethylene oxide | 13.32 |
| Benzene | 3.29 |
| Zinc compounds | 3.00 |
| Triethylamine | 2.19 |
| Di(2-ethylhexyl) phthalate | 2.07 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 1.03 |
| Polycyclic aromatic compounds | 0.61 |
| Toluene diisocyanate (mixed isomers) | 0.34 |
| Copper | 0.29 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.24 |
| Antimony compounds | 0.23 |
| Naphthalene | 0.17 |
| Formaldehyde | 0.14 |
| Hydrogen cyanide | 0.13 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.13 |
| N,N-Dimethylformamide | 0.11 |
| Ethylbenzene | 0.10 |
| Toluene-2,4-diisocyanate | 0.06 |
| Xylene (mixed isomers) | 0.06 |
| Lead compounds | 0.06 |
| Toluene | 0.04 |
| Ethylene glycol | 0.03 |
| n-Hexane (Hexane) | 0.02 |
| Dichloromethane (Methylene chloride) | 0.02 |
| Certain glycol ethers | 0.02 |
| Manganese | 0.02 |
| Nitric acid | 0.02 |
| Silver 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) | 0.02 |
| Acetonitrile | 0.02 |
| 1,2,4-Trimethylbenzene | 0.01 |
| o-Xylene | 0.00 |
| Methyl methacrylate | 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 |
| Methanol | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Methyl tert-butyl ether | 0.00 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| Cyclohexane | 0.00 |
| Mercury | 0.00 |
| Sodium nitrite | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Phenol | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Cumene | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Formic acid | 0.00 |
| Styrene | 0.00 |
| Benzoyl peroxide | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Tetrabromobisphenol A | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
