air pollution. any contamination of the air can be caused by humans or nature
TRANSCRIPT
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Air Pollution
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Air Pollution • Any contamination of the air
• Can be caused by humans or nature
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Primary Pollutants • Pollution that is put directly into the air
• Examples: – Car exhaust– Factory waste– Volcanic ash
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Secondary Pollutants • Created when primary pollutants mix with water or sunlight
• Examples– Acid rain– Smog
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Human caused air pollution
• Industrial– Factories,
manufacturing, power company
• Indoor– Cleaners, heaters,
insulation, carpeting, furniture
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Acid Rain • water that has been mixed with primary pollutants in the air, then rains down
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Effects of Acid Rain • Soil– Washes away the good
parts of soil, leaving more acidic materials behind
• Plants– Can destroy large regions,
plant growth altered or destroyed
• Waterways– Increased acid in water
causing Acid Shock of plants and animals living in or by water
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Effects of Air Pollution
on People• Lung cancer• Asthma• Heart disease• Irritation of eyes,
nose, throat
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Cleaning Up the Air • Clean Air Act
– Law that limits amounts of pollution allowed
• EPA
– Environmental Protection Agency
– Part of government to oversee laws on pollution
• Scrubbers
– Remove pollution before it is released back into environment
• Lifestyle changes
– Walk, cleaner fuel, carpool
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China16 of the worst 20 air polluted cities in the world are in China.
Iran Russia
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• Why are the majority of most polluted cities in the USA near the coastline?
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