| 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.) | 95.77 |
| Ethylene oxide | 76.48 |
| Chromium | 66.39 |
| Cobalt | 57.52 |
| Nickel | 11.44 |
| Trichloroethylene | 9.49 |
| Diisocyanates | 6.09 |
| Cadmium compounds | 5.76 |
| Nickel compounds | 4.64 |
| Antimony compounds | 3.17 |
| Lead | 3.13 |
| Chloroform | 2.11 |
| Benzene | 1.20 |
| Toluene diisocyanate (mixed isomers) | 0.92 |
| Formaldehyde | 0.48 |
| Di(2-ethylhexyl) phthalate | 0.44 |
| Chlorine | 0.36 |
| Polycyclic aromatic compounds | 0.28 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.26 |
| Zinc compounds | 0.23 |
| Copper | 0.13 |
| Dichloromethane (Methylene chloride) | 0.13 |
| Nitric acid | 0.10 |
| Acrylonitrile | 0.08 |
| Xylene (mixed isomers) | 0.07 |
| Acetonitrile | 0.06 |
| Lead compounds | 0.05 |
| Naphthalene | 0.04 |
| Certain glycol ethers | 0.03 |
| 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) | 0.03 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.03 |
| Pyridine | 0.03 |
| Ethylbenzene | 0.03 |
| Hydrogen cyanide | 0.02 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.02 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Cyanide compounds | 0.01 |
| Triethylamine | 0.01 |
| Phenol | 0.01 |
| Methyl tert-butyl ether | 0.01 |
| Toluene | 0.01 |
| Aluminum (fume or dust) | 0.01 |
| Butyl acrylate | 0.01 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.00 |
| Acetophenone | 0.00 |
| Silver compounds | 0.00 |
| o-Xylene | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Ethylene glycol | 0.00 |
| Methanol | 0.00 |
| Toluene-2,4-diisocyanate | 0.00 |
| Styrene | 0.00 |
| Manganese | 0.00 |
| Vinyl acetate | 0.00 |
| Mercury | 0.00 |
| Silver | 0.00 |
| Acrylic acid | 0.00 |
| Ethyl acrylate | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Formic acid | 0.00 |
| Propylene oxide | 0.00 |
| Methyl methacrylate | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Cyclohexane | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Cumene | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Lithium carbonate | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| MIXTURE | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
