| Cobalt | 368.27 |
| Chromium | 135.52 |
| Formaldehyde | 90.26 |
| Nickel | 10.62 |
| Antimony compounds | 0.84 |
| Lead compounds | 0.75 |
| Certain glycol ethers | 0.38 |
| Epichlorohydrin | 0.36 |
| Acrylic acid | 0.24 |
| Benzene | 0.15 |
| Diisocyanates | 0.14 |
| Nitric acid | 0.13 |
| 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.) | 0.12 |
| Naphthalene | 0.10 |
| Ethylbenzene | 0.09 |
| n-Butyl alcohol (1-Butanol) | 0.02 |
| Xylene (mixed isomers) | 0.02 |
| Ozone | 0.02 |
| Lead | 0.02 |
| Manganese compounds | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Copper | 0.01 |
| 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 |
| Trichloroethylene | 0.01 |
| Vinyl acetate | 0.01 |
| Dichloromethane (Methylene chloride) | 0.00 |
| Hydrogen sulfide | 0.00 |
| Polycyclic aromatic compounds | 0.00 |
| Toluene | 0.00 |
| Zinc compounds | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| Cyanide compounds | 0.00 |
| 2,4-D | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Methanol | 0.00 |
| Styrene | 0.00 |
| Tetrachloroethylene | 0.00 |
| Formic acid | 0.00 |
| Ethylene glycol | 0.00 |
| Manganese | 0.00 |
| Diethanolamine | 0.00 |
| Cyclohexane | 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 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
Political Economy Research Institute
