| Cobalt | 592.13 |
| Chromium | 87.60 |
| 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.) | 80.55 |
| Nickel compounds | 60.16 |
| Nickel | 4.98 |
| Cadmium compounds | 3.40 |
| Benzene | 2.40 |
| Formaldehyde | 2.36 |
| Toluene diisocyanate (mixed isomers) | 1.00 |
| Chloroform | 0.57 |
| Diisocyanates | 0.53 |
| Polycyclic aromatic compounds | 0.43 |
| Chlorine | 0.31 |
| Di(2-ethylhexyl) phthalate | 0.19 |
| Acrylonitrile | 0.15 |
| Copper | 0.13 |
| Antimony compounds | 0.11 |
| Xylene (mixed isomers) | 0.11 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.06 |
| Ethylbenzene | 0.06 |
| Certain glycol ethers | 0.04 |
| Dichloromethane (Methylene chloride) | 0.04 |
| Lead | 0.04 |
| Naphthalene | 0.04 |
| Manganese | 0.03 |
| Nitric acid | 0.03 |
| Acetonitrile | 0.03 |
| Butyl acrylate | 0.03 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.02 |
| Lead compounds | 0.02 |
| Zinc compounds | 0.02 |
| Maleic anhydride | 0.01 |
| Triethylamine | 0.01 |
| Styrene | 0.01 |
| Cyanide compounds | 0.01 |
| Acrylic acid | 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 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Phenol | 0.01 |
| Methyl methacrylate | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| n-Hexane (Hexane) | 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 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Pyridine | 0.00 |
| Acetophenone | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Toluene | 0.00 |
| Vinyl acetate | 0.00 |
| Silver compounds | 0.00 |
| Mercury compounds | 0.00 |
| Mercury | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Silver | 0.00 |
| Methanol | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Propylene oxide | 0.00 |
| Ethyl acrylate | 0.00 |
| Biphenyl | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Ethylene glycol | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Formic acid | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
Political Economy Research Institute
