| Cobalt | 718.29 |
| Chromium | 188.32 |
| Formaldehyde | 41.72 |
| Nickel | 15.03 |
| Trichloroethylene | 5.70 |
| Certain glycol ethers | 1.24 |
| Antimony compounds | 1.09 |
| Epichlorohydrin | 1.07 |
| Lead compounds | 0.97 |
| Ethylbenzene | 0.66 |
| Acrylic acid | 0.53 |
| Benzene | 0.43 |
| Diisocyanates | 0.29 |
| Xylene (mixed isomers) | 0.10 |
| Manganese compounds | 0.09 |
| Nitric acid | 0.08 |
| n-Butyl alcohol (1-Butanol) | 0.07 |
| Naphthalene | 0.07 |
| Lead | 0.03 |
| Hydrogen sulfide | 0.02 |
| Ozone | 0.02 |
| Vinyl acetate | 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 |
| Copper | 0.02 |
| N,N-Dimethylformamide | 0.02 |
| Toluene | 0.01 |
| Dichloromethane (Methylene chloride) | 0.00 |
| Polycyclic aromatic compounds | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Di(2-ethylhexyl) phthalate | 0.00 |
| 2,4-D | 0.00 |
| Zinc compounds | 0.00 |
| Methanol | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Cyanide compounds | 0.00 |
| Tetrachloroethylene | 0.00 |
| Styrene | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Formic acid | 0.00 |
| Diethanolamine | 0.00 |
| Ethylene glycol | 0.00 |
| Manganese | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Cyclohexane | 0.00 |
| Benzo[g,h,i]perylene | 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
