1. Air Pollution

2. Any contamination of the air Can be caused by humans or nature

3. Primary Pollutants Pollution that is put directly into the air Examples: –Car exhaust –Factory waste –Volcanic ash

4. Secondary PollutantsCreated when primary pollutants mix with water or sunlight Examples –Acid rain –Smog

5. Human caused air pollution Industrial –Factories, manufacturing, power company Indoor –Cleaners, heaters, insulation, carpeting, furniture

7. Acid Rain water that has been mixed with primary pollutants in the air, then rains down

8. 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

9. Effects of Air Pollution on People Lung cancer Asthma Heart disease Irritation of eyes, nose, throat

10. 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

11. China 16 of the worst 20 air polluted cities in the world are in China. IranRussia

12. Why are the majority of most polluted cities in the USA near the coastline?