| Ethylene oxide | 88.83 |
| Chromium | 42.95 |
| 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.) | 38.44 |
| Cobalt | 26.81 |
| Dicyclopentadiene | 10.40 |
| Maleic anhydride | 9.32 |
| Nickel | 5.25 |
| Lead | 2.15 |
| Trichloroethylene | 2.01 |
| Acrylonitrile | 1.48 |
| Diisocyanates | 1.28 |
| Peracetic acid | 1.17 |
| Antimony compounds | 1.15 |
| Polycyclic aromatic compounds | 0.44 |
| Formaldehyde | 0.19 |
| Zinc compounds | 0.16 |
| Di(2-ethylhexyl) phthalate | 0.15 |
| Butyl acrylate | 0.12 |
| Dichloromethane (Methylene chloride) | 0.06 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.05 |
| Phthalic anhydride | 0.03 |
| Nitric acid | 0.03 |
| Hydrogen cyanide | 0.02 |
| Styrene | 0.01 |
| Toluene diisocyanate (mixed isomers) | 0.01 |
| Acetonitrile | 0.01 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 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 |
| Lead compounds | 0.01 |
| Copper | 0.01 |
| Pyridine | 0.01 |
| Toluene | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Acrylic acid | 0.00 |
| Ethyl acrylate | 0.00 |
| Methyl tert-butyl ether | 0.00 |
| Certain glycol ethers | 0.00 |
| Phenol | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| Methyl methacrylate | 0.00 |
| Xylene (mixed isomers) | 0.00 |
| Ethylene glycol | 0.00 |
| o-Xylene | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Methanol | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Vinyl acetate | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Formic acid | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Acetophenone | 0.00 |
| Manganese | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Cyanide compounds | 0.00 |
| Lithium carbonate | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Tetrabromobisphenol A | 0.00 |
| MIXTURE | 0.00 |
