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Chapter 9

Chapter 9. Air Pollution Pollutants in the air Smog, heat, light, and noise Acid Rain Climate Change. 9.1 What is Air. Air pollution Human sources. Air. Made up of gases Nitrogen Oxygen Humidity (water). Dirty Air. Unhealthy gases From cars, electricity, factories.

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Chapter 9

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  1. Chapter 9 Air Pollution • Pollutants in the air • Smog, heat, light, and noise • Acid Rain • Climate Change

  2. 9.1 What is Air Air pollution Human sources

  3. Air Made up of gases • Nitrogen • Oxygen • Humidity (water)

  4. Dirty Air • Unhealthy gases • From cars, electricity, factories

  5. Particulate Matter • Small particles moving in the air BAD TO BREATH

  6. Air Pollution • Unhealthy air inside and outside

  7. Air Pollutants • Unhealthy to breath into lungs • Smoke, dirt, dust, exhaust • Chemicals and heavy metals • Mold, spores, pollen

  8. 2Categories Primary Air Pollution Secondary Air Pollution Made afterbeing released into the atmosphere Smog Ozone Acid rain • Released directly into the air.

  9. Outdoor Air Pollution • Measured by Air Quality Index • Each day various air pollutants are collected • Each geographic area gets an AQI # • Watch weather reports!

  10. Indoor Air Quality • Air inside homes/ buildings • Worse that outdoors- enclosed

  11. HEPA • Filters airborn particles • Vacuum or furnace

  12. Breathing • Pollutants cause health problems for people, plants, and animals

  13. Respiratory System • +600,000 / year die from air pollution • Asthma (allergies) • Emphysema (smoking)

  14. Aquatic Life Carbon Dioxide dissolves in water • Increases the growth of algae • Dead algae smells odorous and reduces oxygen • Kills fish • Decreases he pH (acidic) • Dissolves coral and the shells

  15. Aquatic Life NOx and SOx • Cause acid rain

  16. Acid Rain • Destroys metal and stone

  17. Acid Rain • Kills fish

  18. Aquatic Life Particulate matter • Kill fish and other organisms

  19. Emissions • Substances released into the air from…… • Burning coal, gasoline, natural gas • Volcanoes/ Lightning • Industrial and utility

  20. Ways to Reduce Emissions • Drive less, walk more • Buy local products • Reduce electricity used • Insulate home, windows, doors • Recycle

  21. Clean Air Act • 1970 • A law to prevent and reduce pollution by industry, farmers, and drivers

  22. Radon Gas • Radio active gas • No smell, taste, color • Causes lung cancer

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