AIR POLLUTION
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Transcript of AIR POLLUTION
AIR POLLUTION
Air Pollution created by man Burning of Fossil Fuels
Examples of fossil fuels: Oil and coal
Burning of fossil fuels produces harmful gases known as OXIDES
Air Pollution created naturally
DustVolcanic AshForest FiresSea Salt
Types of Pollution
Primary PollutantsCar exhaust (carbon monoxide)
Industrial Smoke
Volcanic Ash
Secondary PollutionCreated when primary pollutants mix with natural
chemicals in the air.
Examples:Smog
Ozone
Acid Precipitation
Chemicals from burning fossil fuels are absorbed in the clouds. Clouds release acid rain or snow, which harms animals, trees, and
pollutes water supplies.
Ozone Layer
Protects us from ultraviolet radiation Broken down by the chlorine in chlorofluorocarbons (CFC’s). CFC’s
found in aerosol sprays and as a refrigerant. Chlorine takes breaks apart the three oxygens that make ozone Ozone is made again by oxygen combining with ultraviolet radiation
Health affects of Air Pollution
1. Coughing 2. Dizziness 3. Lung Disease 4. Runny Nose
Environmental Protection Agency
Controls amount of air pollutants released by any source Created by Clean Air Act, passed by President Nixon in 1970 EPA requires industrial plants to use Scrubbers, which take harmful
pollutants out of smoke