aim: what are the effects of air pollution on the environment do now: what is air pollution? explain...
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AIM: What are the effects of air pollution on the environment
Do Now: What is air pollution? Explain why it is harmful.
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What is Air Pollution?Harmful substances
released into the atmosphere.
There are three types of pollutants:1. Natural Air pollutants2. Pollutants from human activity3. Indoor air pollutants
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Global Effects of Air Pollution
1. Acid Precipitaiton
2. Ozone Depletion
3. Global Warming
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Acid Precipitation
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Acid Precipitation
• 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)
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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
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Other problems associated with acid rain
• Damages trees
• Damages crops
• Damages buildings
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Ozone Depletion:
Protects us from UV radiation
What is the job of the ozone layer?
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What causes ozone delpetion?
• Aerosol cans
•Refrigerator Emissions
• Air Conditioner Emissions
CFC’s
(Chlorofluorocarbons)
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What is the problem with using CFC’s?
They create holes in the ozone layer allowing more UV radiation to reach us
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How can UV radiation affect living things?
•Sunburn, blindness, skin cancer
•mutations
•Severe crop damage
•Kills aquatic organisms (disrupts food chains)