| 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.) | 117.45 |
| Ethylene oxide | 88.79 |
| Nickel | 83.79 |
| Cobalt | 75.40 |
| Chromium | 56.30 |
| Cadmium compounds | 32.50 |
| Toluene diisocyanate (mixed isomers) | 5.08 |
| Benzene | 4.63 |
| Polycyclic aromatic compounds | 4.47 |
| Diisocyanates | 4.00 |
| Chlorine | 1.58 |
| Formaldehyde | 0.81 |
| Di(2-ethylhexyl) phthalate | 0.77 |
| Chloroform | 0.74 |
| Antimony compounds | 0.62 |
| Copper | 0.58 |
| Acrylonitrile | 0.42 |
| Nickel compounds | 0.33 |
| Xylene (mixed isomers) | 0.11 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.08 |
| Ethylbenzene | 0.08 |
| Nitric acid | 0.06 |
| Naphthalene | 0.06 |
| Lead compounds | 0.06 |
| 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) | 0.05 |
| Certain glycol ethers | 0.05 |
| Cyanide compounds | 0.04 |
| Lead | 0.04 |
| Triethylamine | 0.03 |
| Acetonitrile | 0.03 |
| Butyl acrylate | 0.02 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.02 |
| Dichloromethane (Methylene chloride) | 0.02 |
| Maleic anhydride | 0.02 |
| Zinc compounds | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Phenol | 0.01 |
| Acetophenone | 0.01 |
| Pyridine | 0.01 |
| Silver compounds | 0.01 |
| Copper compounds (this category does not include copper phthalocyanine compounds that are substituted with only hydrogen, and/or chlorine, and/or bromine.) | 0.01 |
| Aluminum (fume or dust) | 0.01 |
| 1,2,4-Trimethylbenzene | 0.01 |
| Manganese | 0.01 |
| Acrylic acid | 0.01 |
| Styrene | 0.00 |
| Methyl methacrylate | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Toluene | 0.00 |
| o-Xylene | 0.00 |
| Mercury compounds | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Vinyl acetate | 0.00 |
| Silver | 0.00 |
| Ethylene glycol | 0.00 |
| Mercury | 0.00 |
| Methanol | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Ethyl acrylate | 0.00 |
| Propylene oxide | 0.00 |
| Cyclohexane | 0.00 |
| Cumene | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Formic acid | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 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 |
