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Air pollutant

Wikipedia English The Free Encyclopedia

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Air pollution
Air pollution is the introduction of particulatesbiological molecules, or other harmful materials into Earth's atmosphere, causing diseases, death to humans, damage to other living organisms such as animals and food crops, or the natural or built environment. Air pollution may come from anthropogenic or natural sources.

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EPA Terms of Environment Dictionary

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Air Pollutant
Any substance in air that could, in high enough concentration, harm man, other animals, vegetation, or material. Pollutants may include almost any natural or artificial composition of airborne matter capable of being airborne. They may be in the form of solid particles, liquid droplets, gases, or in combination thereof. Generally, they fall into two main groups: (1) those emitted directly from identifiable sources and (2) those produced in the air by interaction between two or more primary pollutants, or by reaction with normal atmospheric constituents, with or without photoactivation. Exclusive of pollen, fog, and dust, which are of natural origin, about 100 contaminants have been identified. Air pollutants are often grouped in categories for ease in classification; some of he categories are: solids, sulfur compounds, volatile organic chemicals, particulate matter, nitrogen compounds, oxygen compounds, halogen compounds, radioactive compound, and odors.

Provided as a public service by the U.S. Environmental Protection Agency

EPA Glossary of Climate Change Terms

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Air pollutant

Provided as a public service by the U.S. Environmental Protection Agency. Reference list click here.

Glosarium Pusat Bahasa Depdiknas Indonesia

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air pollutant
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