Air Pollution<br />7SCIENCE Fri. Feb. 11, 2011<br />
What is pollution?<br />Did you know? By the time you are 75 years old you will have:<br />Produced enough garbage to equa...
Air Pollution<br />The major sources of air pollution are:<br />Cars<br />Industry <br />Power plants <br />Burning waste<...
Air Pollution: Smog<br />Smoke + Fog = smog <br />Hazy-looking air usually around cities<br />Two types:<br />Photochemica...
Air Pollution: Acid Rain<br />Acid rain is created when coal is burned, or from car exhaust, releasing gases, and this com...
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Air pollution

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Air pollution

  1. 1. Air Pollution<br />7SCIENCE Fri. Feb. 11, 2011<br />
  2. 2. What is pollution?<br />Did you know? By the time you are 75 years old you will have:<br />Produced enough garbage to equal the mass of 6 elephants <br />Used enough water to fill 100.000 bathtubs!<br />Pollution is the introduction of a substance that contaminates an environment<br />Focus on air and water <br />
  3. 3. Air Pollution<br />The major sources of air pollution are:<br />Cars<br />Industry <br />Power plants <br />Burning waste<br />Heat for buildings<br />Types of air pollution: <br />Smog <br />Acid Rain<br />
  4. 4. Air Pollution: Smog<br />Smoke + Fog = smog <br />Hazy-looking air usually around cities<br />Two types:<br />Photochemical smog looks brown and occurs when sunlight reacts with the pollutants (contaminating substances) in the air<br />Sulfurous smog looks gray and is created when coal is burned<br />BOTH can cause health problems<br />
  5. 5. Air Pollution: Acid Rain<br />Acid rain is created when coal is burned, or from car exhaust, releasing gases, and this combines with moisture (water) in the air to form an acid<br />This acid falls to the earth as rain or snow <br />It can be poisonous or toxic to living things<br />Questions to Consider<br />What effects do you think this has on human health?<br />What can we do to reduce the amount of air pollution?<br />

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