| Ethylene oxide | 68.45 |
| Chromium | 26.41 |
| 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.) | 23.05 |
| Nickel | 8.56 |
| Maleic anhydride | 4.10 |
| Cadmium compounds | 3.41 |
| Diisocyanates | 1.66 |
| Dicyclopentadiene | 1.33 |
| Antimony compounds | 0.76 |
| Acrylonitrile | 0.36 |
| Peracetic acid | 0.28 |
| Chlorine | 0.20 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.08 |
| Formaldehyde | 0.05 |
| Polycyclic aromatic compounds | 0.04 |
| Nickel compounds | 0.04 |
| Nitric acid | 0.04 |
| Dichloromethane (Methylene chloride) | 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 |
| Lead | 0.03 |
| Butyl acrylate | 0.03 |
| Lead compounds | 0.03 |
| Phenol | 0.02 |
| Acetonitrile | 0.02 |
| Phthalic anhydride | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Pyridine | 0.01 |
| Xylene (mixed isomers) | 0.01 |
| Cyanide compounds | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| Zinc compounds | 0.00 |
| Ethylene glycol | 0.00 |
| Styrene | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Certain glycol ethers | 0.00 |
| Vinyl acetate | 0.00 |
| Methyl tert-butyl ether | 0.00 |
| Toluene | 0.00 |
| Copper | 0.00 |
| Acetophenone | 0.00 |
| Acrylic acid | 0.00 |
| Silver compounds | 0.00 |
| o-Xylene | 0.00 |
| Methanol | 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 |
| Methyl methacrylate | 0.00 |
| Ethyl acrylate | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Silver | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Formic acid | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Mercury | 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 |
