The NPI contains data on 93 substances that are emitted to the environment. The substances included in the NPI have been identified as important because of their possible health and environmental effects.
The following fact sheets describe how you might be exposed to a substance, common uses and sources of emissions, and physical and chemical properties.
- Acetaldehyde
- Acetic acid (ethanoic acid)
- Acetone
- Acetonitrile
- Acrolein
- Acrylamide
- Acrylic acid
- Acrylonitrile (2-propenenitrile)
- Ammonia (total)
- Aniline (benzenamine)
- Antimony & compounds
- Arsenic & compounds
- Benzene
- Benzene hexachloro- (HCB)
- Beryllium & compounds
- Biphenyl (1,1-biphenyl)
- Boron & compounds
- 1,3-Butadiene (vinyl ethylene)
- Cadmium & compounds
- Carbon disulfide
- Carbon monoxide
- Chlorine
- Chlorine dioxide
- Chloroethane (ethyl chloride)
- Chloroform (trichloromethane)
- Chlorophenols (di, tri, tetra)
- Chromium (III) compounds
- Chromium (VI) compounds
- Cobalt & compounds
- Copper & compounds
- Cumene (1-methylethylbenzene)
- Cyanide (inorganic) compounds
- Cyclohexane
- 1,2-Dibromoethane
- Dibutyl phthalate
- 1,2-Dichloroethane
- Dichloromethane
- Ethanol
- 2-Ethoxyethanol
- 2-Ethoxyethanol acetate
- Ethyl acetate
- Ethyl butyl ketone
- Ethylbenzene
- Ethylene glycol (1,2-ethanediol)
- Ethylene oxide
- Di-(2-Ethylhexyl) phthalate (DEHP)
- Fluoride compounds
- Formaldehyde (methyl aldehyde)
- Glutaraldehyde
- n-Hexane
- Hydrochloric acid
- Hydrogen sulfide
- Lead & compounds
- Magnesium oxide fume
- Manganese & compounds
- Mercury & compounds
- Methanol
- 2-Methoxyethanol
- 2-Methoxyethanol acetate
- Methyl ethyl ketone
- Methyl isobutyl ketone
- Methyl methacrylate
- 4,4'-Methylene-bis(2-chloroaniline) (MOCA)
- Methylenebis (phenylisocyanate)
- Nickel & compounds
- Nickel carbonyl
- Nickel subsulfide
- Nitric acid
- Organo-tin compounds
- Oxides of nitrogen
- Particulate matter (PM10 and PM2.5)
- Phenol
- Phosphoric acid
- Polychlorinated biphenyls
- Polychlorinated dioxins and furans
- Polycyclic aromatic hydrocarbons
- Selenium & compounds
- Styrene (ethenylbenzene)
- Sulfur dioxide
- Sulfuric acid
- 1,1,1,2-Tetrachloroethane
- Tetrachloroethylene
- Toluene (methylbenzene)
- Toluene-2,4-diisocyanate
- Total nitrogen
- Total phosphorus
- Total volatile organic compounds
- 1,1,2-Trichloroethane
- Trichloroethylene
- Vinyl chloride monomer
- Xylenes (individual or mixed isomers)
- Zinc and compounds
