| 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.) | 73.73 |
| Ethylene oxide | 71.18 |
| Chromium | 22.18 |
| Nickel | 10.44 |
| Cadmium compounds | 3.54 |
| Maleic anhydride | 3.37 |
| Diisocyanates | 3.05 |
| Antimony compounds | 1.33 |
| Dicyclopentadiene | 1.01 |
| Toluene diisocyanate (mixed isomers) | 0.46 |
| Acrylonitrile | 0.31 |
| Chlorine | 0.26 |
| Peracetic acid | 0.25 |
| Di(2-ethylhexyl) phthalate | 0.22 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.14 |
| Dichloromethane (Methylene chloride) | 0.08 |
| Polycyclic aromatic compounds | 0.07 |
| Formaldehyde | 0.07 |
| Nickel compounds | 0.06 |
| Nitric acid | 0.06 |
| Acetonitrile | 0.03 |
| Lead compounds | 0.02 |
| Butyl acrylate | 0.02 |
| Lead | 0.02 |
| Copper | 0.02 |
| Certain glycol ethers | 0.02 |
| 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) | 0.02 |
| Pyridine | 0.02 |
| Phenol | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.01 |
| Phthalic anhydride | 0.01 |
| Zinc compounds | 0.01 |
| Cyanide compounds | 0.01 |
| Xylene (mixed isomers) | 0.01 |
| Methyl tert-butyl ether | 0.01 |
| Aluminum (fume or dust) | 0.00 |
| Styrene | 0.00 |
| Ethylene glycol | 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 |
| Methanol | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| Vinyl acetate | 0.00 |
| o-Xylene | 0.00 |
| Toluene | 0.00 |
| Acetophenone | 0.00 |
| Silver compounds | 0.00 |
| Acrylic acid | 0.00 |
| Ethyl acrylate | 0.00 |
| Methyl methacrylate | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Mercury | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Silver | 0.00 |
| Formic acid | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Lithium carbonate | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| MIXTURE | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
