| Chromium | 45.06 |
| Cobalt | 12.06 |
| Trichloroethylene | 5.97 |
| Nickel | 4.46 |
| 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.) | 2.85 |
| Maleic anhydride | 1.26 |
| Dicyclopentadiene | 0.96 |
| Dichloromethane (Methylene chloride) | 0.40 |
| Antimony compounds | 0.14 |
| Acrylonitrile | 0.13 |
| Peracetic acid | 0.11 |
| Formaldehyde | 0.09 |
| Polycyclic aromatic compounds | 0.09 |
| Lead | 0.03 |
| Butyl acrylate | 0.01 |
| Benzo[g,h,i]perylene | 0.01 |
| Phthalic anhydride | 0.00 |
| Copper | 0.00 |
| Styrene | 0.00 |
| Nitric acid | 0.00 |
| Di(2-ethylhexyl) phthalate | 0.00 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| Certain glycol ethers | 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 |
| Methyl tert-butyl ether | 0.00 |
| Zinc compounds | 0.00 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Lead compounds | 0.00 |
| Ethylbenzene | 0.00 |
| Toluene | 0.00 |
| Acrylic acid | 0.00 |
| Acetonitrile | 0.00 |
| Ethyl acrylate | 0.00 |
| Xylene (mixed isomers) | 0.00 |
| Methyl methacrylate | 0.00 |
| Methanol | 0.00 |
| Ethylene glycol | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Silver compounds | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| Manganese | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Acetophenone | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
Political Economy Research Institute
