Thursday, 5 June 2014

AIR POLLUTION

AIR POLLUTION
Presence of chemicals in atmosphere in quantities and duration that are harmful to human health as well as the environment. 
SOURCES
Natural Sources
Volcano
Forest Fires
Dust Storms
Oceans
Anthropogenic  Sources
Stationary Sources
Point Sources (Industrial Processing, Power plants, fuel Combustion )
Area Sources (Residential Heating, On site Incineration,  Open Burning)
Mobile Sources
Line Sources (Highway Vehicles, railroad locomotives)

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