Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or materials. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS
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Air Pollutants -- metabolism : Air pollutants and the respiratory tract / edited by W. Michael Foster, Daniel L. Costa
Air Pollutants, Occupational -- standards. : Exposure standards for atmospheric contaminants in the occupational environment / National Occupational Health and Safety Commission
Air Pollutants, Radioactive -- toxicity : Health effects of exposure to radon / Committee on Health Risks of Exposure to Radon, Board on Radiation Effects Research, Commission on Life Sciences, National Research Council