| 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.) | 114.36 |
| Ethylene oxide | 59.36 |
| Chromium | 52.85 |
| Maleic anhydride | 7.35 |
| Dicyclopentadiene | 6.14 |
| Nickel | 4.38 |
| Trichloroethylene | 2.58 |
| Diisocyanates | 0.93 |
| Acrylonitrile | 0.79 |
| Peracetic acid | 0.59 |
| Antimony compounds | 0.59 |
| Polycyclic aromatic compounds | 0.07 |
| Butyl acrylate | 0.06 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.05 |
| Dichloromethane (Methylene chloride) | 0.03 |
| Phthalic anhydride | 0.02 |
| Nitric acid | 0.02 |
| Lead compounds | 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 |
| Lead | 0.01 |
| N,N-Dimethylformamide | 0.01 |
| Formaldehyde | 0.01 |
| Acetonitrile | 0.01 |
| Phenol | 0.01 |
| Styrene | 0.01 |
| Pyridine | 0.01 |
| Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) | 0.00 |
| Zinc compounds | 0.00 |
| Xylene (mixed isomers) | 0.00 |
| Ethylene glycol | 0.00 |
| Aluminum (fume or dust) | 0.00 |
| Acrylic acid | 0.00 |
| Methyl tert-butyl ether | 0.00 |
| Ethyl acrylate | 0.00 |
| Methyl methacrylate | 0.00 |
| Vinyl acetate | 0.00 |
| o-Xylene | 0.00 |
| Toluene | 0.00 |
| Di(2-ethylhexyl) phthalate | 0.00 |
| Methanol | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Certain glycol ethers | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| n-Hexane (Hexane) | 0.00 |
| Formic acid | 0.00 |
| Manganese | 0.00 |
| 3-Iodo-2-propynyl butylcarbamate | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Cyanide compounds | 0.00 |
| Lithium carbonate | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| MIXTURE | 0.00 |
