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Pollution

Pollution. Mr. Blackwood. Topics. Types of Pollution Effects of Pollution Controlling Pollution Sources of Pollution Global Warming Green house Gas reduction Chemicals that destroy the Ozone Demo. Air Pollution. Pollutants Carbon monoxide, Sulfur Oxides, Nitrogen Oxides

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Pollution

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  1. Pollution Mr. Blackwood

  2. Topics • Types of Pollution • Effects of Pollution • Controlling Pollution • Sources of Pollution • Global Warming • Green house Gas reduction • Chemicals that destroy the Ozone • Demo

  3. Air Pollution • Pollutants • Carbon monoxide, Sulfur Oxides, Nitrogen Oxides • Particles or Particulates • Tiny particles or droplets that mix with air • Dirt, pollen, and sea salt

  4. Earths Atmosphere • Dust Devil

  5. Where does it come from? • Burning of Fossil Fuels • Smoke from fossil fuels makes a fog or cloud - looks like haze - SMOG • Reaction of Sunlight with fumes of gasoline, car exhaust, etc.

  6. Effects of Pollution • Health Problems • Eye, lung, throat irritation • Gases from the Atmosphere can move from lungs to other parts of your body • Don’t exercise in polluted air

  7. Controlling Pollution • Smog - Makes it unhealthy to work out • Reduce the amount you drive • Clean Air Act - limits the amount of air pollution that factories and power plants release • Sets rules for exhaust cleaners • EPA measures air pollution

  8. Green House Gases • Most occur naturally • Help regulate temperature of earth • Regulate life - provide suitable environment for plants and animals to live • Sources of gases • Plant growth, forest fires, volcanoes, and other natural processes • Humans are producing green house gases faster than natural processes can remove them

  9. Global Warming • Growing concern about the concentration of greenhouse gases humans add to air • CO2 - 100 year life in atmosphere • Air contains about 30% more CO2 than it did in mid 1700’s • Increasing by 0.4% a year

  10. Reducing Greenhouse Gases • Not a local issue • Effects the planet • Kyoto Protocol - Require that developed nations release no more greenhouse gases each year than they did in 1990 • US has not signed • US contributed 1/3 the greenhouse gases in 1990

  11. Human Activity • Produced by cars, chemical factories, and fertilizers • Understanding sequestration and decomposition of greenhouse gases will help scientists understand how to decrease the effects of human contributions to green house gases

  12. Demo • We are going to light a candle and blow it out. • Observe what happens after we blow the candle out. • Record you observations with respect to how you think chemicals end up in the atmosphere • Lets discuss findings

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