1. SO2 Sulfur Dioxides: It is a respiratory irritant Can affect plants
Results from combustion AND volcanoes (so it occurs from natural and man- made pollution)
It is corrosive
Acid Rain Program: sulfur allowances:
Companies must pay a fine if they emit more than their share of sulfur
Companies can emit the same amount of sulfur they emitted before 1990
Companies can sell sulfur allowances
Overall reduce the amount of sulfur being emitted

2. NOx Nitrogen Oxides: main anthropogenic source are motor vehicles
Lowering coal burning temps can reduce emissions

3. Depletion of the Ozone Layer
Ozone absorbs incoming UV rays
Depletion was greatest in Antarctica during August- November
Occurs in the STRATOSPHERE
Chlorine atom on CFCs are destroying the ozone layer

4. Tropospheric Ozone
Found in LARGE quantities in BROWN SMOG

5. Indoor Air Pollutants
Wood, animal manure or coal used for cooking and heating in developing countries. (Biomass)
Asbestos (insulation)
Radon: radioactive gas
Seeps into homes through foundation cracks
Exists in granite
Effects can be reduced by sealing cracks and increasing ventilation
VOCs in home products

6. Indoor Air Pollutants Affects BOTH developing and developed countries
Asbestos (insulation)
Sick Building Syndrome: sickness caused by the buildup of toxins in an air-tight space (building)
Copy machines, VOCs from carpets, ventilation, paint, etc.
VOCs in carpets contain formaldehyde

7. Legislation
Montreal Protocol: called for the eventual elimination of CFCs
Global Legislation: needed due to the movement of large polluted air masses all over the globe
Economic Benefits: Include the establishment of “clean” technologies in businesses and manufacturers. Creation of municipal electric vehicles. Increases population in areas
Global Reduction Methods: carpool lanes, expanded public transport, road use fees (tolls), permitting automobile use on certain days

8. Legislation Early U.S. Legislation sought to control: NOx emissions
Emissions from industry
Open burning
Sulfur in fuel
Decreasing Air emissions could come from something as simple as switching fuel sources away from gasoline

9. Misc
Dispersed air pollutants are the MOST difficult to control