| Cobalt | 651.78 |
| Chromium | 224.09 |
| Formaldehyde | 44.94 |
| Nickel | 18.11 |
| Trichloroethylene | 6.93 |
| Certain glycol ethers | 1.66 |
| Epichlorohydrin | 1.53 |
| Acrylic acid | 0.93 |
| Diisocyanates | 0.35 |
| Ethylbenzene | 0.11 |
| n-Butyl alcohol (1-Butanol) | 0.10 |
| Benzene | 0.06 |
| Nitric acid | 0.05 |
| Vinyl acetate | 0.03 |
| Lead | 0.03 |
| Xylene (mixed isomers) | 0.03 |
| Manganese compounds | 0.02 |
| N,N-Dimethylformamide | 0.02 |
| Copper | 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 |
| Lead compounds | 0.01 |
| Dichloromethane (Methylene chloride) | 0.01 |
| Hydrogen sulfide | 0.00 |
| Di(2-ethylhexyl) phthalate | 0.00 |
| Toluene | 0.00 |
| Methanol | 0.00 |
| Polycyclic aromatic compounds | 0.00 |
| 2,4-D | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Tetrachloroethylene | 0.00 |
| Styrene | 0.00 |
| Formic acid | 0.00 |
| Diethanolamine | 0.00 |
| Cyanide compounds | 0.00 |
| Ethylene glycol | 0.00 |
| Methyl isobutyl ketone | 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 |
| Manganese | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Butyraldehyde | 0.00 |
| 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.) | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
Political Economy Research Institute
