1. News

2. Air Pollution
Source: Zakysant, German Wikipedia

3. The Atmosphere
75% of Mass
below
17 km
Source:

4. Thermal Inversions
Source: US Department of Natural Resources

5. Inversion
Photo by: Kreuzschnabel

6. What does air pollution do?
Damage materials
Damage plants and animals
Human health
Cause acid rain
Decrease visibility

7. Damage to Buildings
Images removed due to copyright restrictions.

8. Stress to Plants
Image courtesy of APPA

9. Human Health
Source: Wikipedia

10. Lungs
Photo Credit: ``The ABC´s of Smoking" by Michael F. Russo, Published by W.R. Spence, MD, Div of WRS Group, Waco, Tx

11. Index Card What are the major air pollutants? Where do they come from?
How do we reduce them?

12. Major Classes of Air Pollutants
Examples
Carbon Oxides
Carbon Monoxide, carbon dioxide
Sulfur Oxides
Sulfur dioxide, sulfur trioxide
Nitrogen oxides
Nitric oxide, nitrogen dioxide, nitrous oxide (NOx)
Volatile organic compounds
Methane, propane, benzene, chlorofluorocarbons
Suspended particles
Solid particles (dust, soot, etc.), liquid droplets (sulfuric acid, PCBs, dioxins, pesticides)
Photochemical oxidants
Ozone, peroxyacyl nitrates, hydrogen peroxide
Radioactive substances
Radon-222, iodine-131, strontium-90, plutonium-239
Toxic compounds
Trace amounts of at least 600 toxic substances (many of them volatile organic compounds), 60 of them known to cause cancer in test animals
Figure by UMB OpenCourseWare

13. Mobile Sources
Image courtesy of United States Environmental Protection Agency

14. Stationary Sources
Image courtesy of United States Federal Government

15. Pathways
Image courtesy of United States Environmental Protection Agency

16. Acid Deposition
Image courtesy of

17. Acid Rain
Dry
Wet
Images removed due to copyright restrictions.

18. pH Water 7 Lemon Juice 2 Windex 11 Rain 5.5 Seawater 8 Coke 2.5
Acid Fog 2
Image courtesy of United States Environmental Protection Agency

19. Nitrogen Oxides
Figure by UMB OpenCourseWare

20. Sulfur Oxides
Figure by UMB OpenCourseWare

21. Regional Problem
*Image removed due to copyright restrictions.

22. Coal Burning
*Image removed due to copyright restrictions.

23. pH of Rain
*Image removed due to copyright restrictions.

24. Sulfate Deposition
*Image removed due to copyright restrictions.

25. pH of Rain
*Image removed due to copyright restrictions.

26. Smog
*Image removed due to copyright restrictions.

27. Photochemical Smog Needs VOC (hydrocarbons) Needs NOx Needs sunlight
Produces NO2 (brown), O3 (ozone)
Ozone damages plants (5-10% reduction in food production)

28. Hydrocarbons
Figure by UMB OpenCourseWare

29. Particles
Figure by UMB OpenCourseWare

30. Trends
Figure by UMB OpenCourseWare

31. Trends
Images removed due to copyright restrictions.

32. Solutions-Stationary
*Image removed due to copyright restrictions.

33. Solutions
*Image removed due to copyright restrictions.

34. Solutions
*Image removed due to copyright restrictions.

35. Reductions in Mobile Sources
Catalytic converters
Annual Stickers
Unleaded gasoline
Cleaner burning engines
Better gas mileage
Fewer Miles driven

36. Indoor Air Pollution

37. Radon
Image courtesy of Natural Resources Canada

38. Stratospheric Vs. Tropospheric Ozone
Image courtesy of