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Adjacent Words

air observation post
air observer
air out
Air Parcel
air passage
air photographic reconnaissance
air picket
Air pipe
air piracy
air pistol
air plant
air plot
air pocket
Air poise
air police
Air port
air portable
air position
air potato
air power
air pressure
air priorities committee
air pump
air rage
air raid
air raid reporting control ship
air reconnaissance
air refueling
air refueling control point
air refueling control team

air pollution definitions

WordNet (r) 3.0 (2005)

n
1: pollution of the atmosphere; "air pollution reduced the visibility"

Britannica Concise

Release into the atmosphere of gases, finely divided solids, or finely dispersed liquid aerosols at rates that exceed the capacity of the atmosphere to dissipate them or to dispose of them through incorporation into the biosphere. Dust storms in desert areas and smoke from forest and grass fires contribute to particulate and chemical air pollution. Volcanic activity is the major natural source of air pollution, pouring huge amounts of ash and toxic fumes into the atmosphere. Air pollution may affect humans directly, causing irritation of the eyes or coughing. More indirectly, its effects can be measured far from the source, as, for example, the fallout of tetraethyl lead from automobile exhausts, which has been observed in the oceans and on the Greenland ice sheet. Still less direct are possible effects on global climates. See also smog.

NOAA Weather Glossary

The existence in the air of substances in concentrations that are determined unacceptable. Contaminants in the air we breathe come mainly from manufacturing industries, electric power plants, automobiles, buses, and trucks.

Moby Thesaurus

air, attritus, badness, bran, contamination, cosmic dust, crumb, crumble, dust, dust ball, efflorescence, fallout, farina, filings, flour, grits, groats, harmfulness, health hazard, injuriousness, insalubriousness, insalubrity, kittens, lint, meal, menace to health, noise pollution, noisomeness, noxiousness, pathenogenicity, pollution, powder, pussies, raspings, sawdust, smut, soot, unhealthfulness, unhealthiness, unsalutariness, unwholesomeness, water




 


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