1. AIM: What are the effects of air pollution on the environment Do Now: What is air pollution? Explain why it is harmful.

2. What is Air Pollution? Harmful substances released into the atmosphere. There are three types of pollutants: 1. Natural Air pollutants 2. Pollutants from human activity 3. Indoor air pollutants

5. Global Effects of Air Pollution 1.Acid Precipitaiton 2.Ozone Depletion 3.Global Warming

6. Acid Precipitation

8. Rain or snow becomes acidic Normal rain/snow has a pH of 5.6 What causes Acid Rain? burning of fossil fuels Rain mixes with gases in the air CO2 (carbonic acid) SO2 (sulfuric Acid), NO2 (Nitric Acid)

11. What happens when acid starts to accumulate in lakes? Fish die- water is too acidic for them Disrupts the food chain Affects the entire ecosystem

12. Other problems associated with acid rain Damages trees Damages crops Damages buildings

13. Ozone Depletion: Protects us from UV radiation What is the job of the ozone layer?

14. What causes ozone delpetion? Aerosol cans Refrigerator Emissions Air Conditioner Emissions CFC’s (Chlorofluorocarbons)

15. What is the problem with using CFC’s? They create holes in the ozone layer allowing more UV radiation to reach us

16. How can UV radiation affect living things? Sunburn, blindness, skin cancer mutations Severe crop damage Kills aquatic organisms (disrupts food chains)