| Ethylene oxide | 51.30 |
| Chromium | 29.05 |
| Cobalt | 25.54 |
| Dicyclopentadiene | 22.33 |
| Maleic anhydride | 15.85 |
| 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.) | 11.25 |
| Nickel | 4.99 |
| Trichloroethylene | 2.53 |
| Acrylonitrile | 2.15 |
| Peracetic acid | 1.57 |
| Antimony compounds | 0.71 |
| Diisocyanates | 0.20 |
| Butyl acrylate | 0.19 |
| Formaldehyde | 0.14 |
| Polycyclic aromatic compounds | 0.06 |
| Dichloromethane (Methylene chloride) | 0.06 |
| Phthalic anhydride | 0.05 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.04 |
| Lead | 0.03 |
| Styrene | 0.03 |
| Nitric acid | 0.02 |
| Hydrogen cyanide | 0.01 |
| Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.01 |
| Acetonitrile | 0.01 |
| Acrylic acid | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| Lead compounds | 0.00 |
| Ethyl acrylate | 0.00 |
| Pyridine | 0.00 |
| Toluene | 0.00 |
| 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) | 0.00 |
| Methyl methacrylate | 0.00 |
| Zinc compounds | 0.00 |
| Toluene diisocyanate (mixed isomers) | 0.00 |
| Methyl tert-butyl ether | 0.00 |
| Ethylene glycol | 0.00 |
| Certain glycol ethers | 0.00 |
| Phenol | 0.00 |
| Copper | 0.00 |
| Xylene (mixed isomers) | 0.00 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.00 |
| o-Xylene | 0.00 |
| Methanol | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Di(2-ethylhexyl) phthalate | 0.00 |
| Vinyl acetate | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| N,N-Dimethylformamide | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| Formic acid | 0.00 |
| Manganese | 0.00 |
| Acetophenone | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 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 |
Political Economy Research Institute
