| Cobalt | 248.84 |
| Chromium | 234.42 |
| Formaldehyde | 40.64 |
| Nickel | 18.91 |
| Trichloroethylene | 16.21 |
| Acrylic acid | 0.48 |
| Certain glycol ethers | 0.47 |
| Maleic anhydride | 0.40 |
| Epichlorohydrin | 0.40 |
| Diisocyanates | 0.30 |
| Dicyclopentadiene | 0.09 |
| N,N-Dimethylformamide | 0.05 |
| n-Butyl alcohol (1-Butanol) | 0.03 |
| Ethylbenzene | 0.03 |
| Vinyl acetate | 0.03 |
| Copper | 0.02 |
| Nitric acid | 0.02 |
| Lead | 0.01 |
| Xylene (mixed isomers) | 0.01 |
| Benzene | 0.01 |
| Di(2-ethylhexyl) phthalate | 0.01 |
| Lead compounds | 0.01 |
| Polycyclic aromatic compounds | 0.01 |
| Dichloromethane (Methylene chloride) | 0.00 |
| Manganese compounds | 0.00 |
| Styrene | 0.00 |
| Phthalic anhydride | 0.00 |
| Toluene | 0.00 |
| Methanol | 0.00 |
| Hydrogen sulfide | 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 |
| Tetrachloroethylene | 0.00 |
| Manganese | 0.00 |
| Diethanolamine | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Ethylene glycol | 0.00 |
| Formic acid | 0.00 |
| 2,4-D | 0.00 |
| Acetonitrile | 0.00 |
| Methyl methacrylate | 0.00 |
| Cyanide compounds | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Benzo[g,h,i]perylene | 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
