air pollution. any contamination of the air can be caused by humans or nature
Post on 11-Jan-2016
214 Views
Preview:
TRANSCRIPT
Air Pollution
Air Pollution • Any contamination of the air
• Can be caused by humans or nature
Primary Pollutants • Pollution that is put directly into the air
• Examples: – Car exhaust– Factory waste– Volcanic ash
Secondary Pollutants • Created when primary pollutants mix with water or sunlight
• Examples– Acid rain– Smog
Human caused air pollution
• Industrial– Factories,
manufacturing, power company
• Indoor– Cleaners, heaters,
insulation, carpeting, furniture
Acid Rain • water that has been mixed with primary pollutants in the air, then rains down
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
Effects of Air Pollution
on People• Lung cancer• Asthma• Heart disease• Irritation of eyes,
nose, throat
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
China16 of the worst 20 air polluted cities in the world are in China.
Iran Russia
• Why are the majority of most polluted cities in the USA near the coastline?
top related