| Nickel compounds | 218.04 |
| Cobalt | 163.91 |
| Chromium | 32.85 |
| Nickel | 4.54 |
| Diisocyanates | 1.97 |
| Formaldehyde | 1.07 |
| Chlorine | 0.44 |
| Toluene diisocyanate (mixed isomers) | 0.32 |
| Benzene | 0.13 |
| Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) | 0.13 |
| Copper | 0.11 |
| Polycyclic aromatic compounds | 0.08 |
| Manganese | 0.06 |
| Nitric acid | 0.05 |
| Xylene (mixed isomers) | 0.03 |
| Lead compounds | 0.02 |
| Dichloromethane (Methylene chloride) | 0.02 |
| Butyl acrylate | 0.02 |
| Lead | 0.01 |
| Certain glycol ethers | 0.01 |
| Antimony compounds | 0.01 |
| Acetonitrile | 0.01 |
| Hydrogen fluoride (Hydrofluoric acid) | 0.01 |
| Maleic anhydride | 0.01 |
| Zinc compounds | 0.01 |
| Styrene | 0.00 |
| Acrylic acid | 0.00 |
| Ethylbenzene | 0.00 |
| Naphthalene | 0.00 |
| n-Hexane (Hexane) | 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 |
| Phenol | 0.00 |
| Zinc (fume or dust) | 0.00 |
| Methyl isobutyl ketone | 0.00 |
| Vinyl acetate | 0.00 |
| Toluene | 0.00 |
| 1,2,4-Trimethylbenzene | 0.00 |
| Biphenyl | 0.00 |
| Methanol | 0.00 |
| Propylene oxide | 0.00 |
| Mercury | 0.00 |
| Ethyl acrylate | 0.00 |
| Silver | 0.00 |
| Benzo[g,h,i]perylene | 0.00 |
| tert-Butyl alcohol (tert-Butanol) | 0.00 |
| Ethylene glycol | 0.00 |
| Cumene | 0.00 |
| Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 0.00 |
| Methyl methacrylate | 0.00 |
| Cyclohexane | 0.00 |
| n-Butyl alcohol (1-Butanol) | 0.00 |
| Di(2-ethylhexyl) phthalate | 0.00 |
| N-Methyl-2-pyrrolidone | 0.00 |
| Nonylphenol Ethoxylates | 0.00 |
Political Economy Research Institute
