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Air Quality

Air Quality. Section 15-4. Sources of Pollution. Pollutants – harmful substances in the air, water or soil. Natural sources – fires, soil erosion, dust storms, volcanoes, mold, and pollen Human Activity – farming, construction, burning fossil fuels. Smog and Acid Rain.

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Air Quality

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  1. Air Quality Section 15-4

  2. Sources of Pollution • Pollutants – harmful substances in the air, water or soil. • Natural sources – fires, soil erosion, dust storms, volcanoes, mold, and pollen • Human Activity – farming, construction, burning fossil fuels

  3. Smog and Acid Rain • London-type smog – smoke from factories and fog polluted London • Photochemical smog – formed by the action of sunlight on pollutants such as hydrocarbons and nitrogen oxides

  4. Acid Rain • Acid rain – rain that is more acidic than normal. Moisture in air mixes with nitrogen oxides or sulfur oxides • Damages buildings, statues. Kills animals and plants

  5. Environmental Protection Agency • EPA – government agency that monitors air pollution in the US.

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