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17.4

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17.4. Human Impact on the Atmosphere. Common Air Pollutant Some are produced by nature thru volcanoes and forest fires Some are produced by man. The clean air act of 1970 identified 6 major pollutants. Carbon monoxide Nitrogen dioxide Sulfur dioxide Particulate matter-smoke, ash, soot

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17.4

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  1. 17.4 Human Impact on the Atmosphere

  2. Common Air Pollutant • Some are produced by nature thru volcanoes and forest fires • Some are produced by man

  3. The clean air act of 1970 identified 6 major pollutants • Carbon monoxide • Nitrogen dioxide • Sulfur dioxide • Particulate matter-smoke, ash, soot • Lead • ozone

  4. Acid Rain • Rain is usually neutral on the pH scale • Water in the atmosphere will pick up pollutants in the air and become acidic

  5. Temperature inversion • Under certain conditions a layer of warm air may rise up above a layer of cool air • This could cause pollution to become trapped close to the ground

  6. Page 382- chart on national emissions of pollutants

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