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Acid Precipitation

Acid Precipitation. Acid Precipitation. Acid precipitation – highly acidic precipitation that results from the burning of fossil fuels Rain Sleet Snow. How Acid Precipitation is Formed.

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Acid Precipitation

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  1. Acid Precipitation

  2. Acid Precipitation • Acid precipitation – highly acidic precipitation that results from the burning of fossil fuels • Rain • Sleet • Snow

  3. How Acid Precipitation is Formed • Sulfur dioxide and nitrogen oxides from cars and factories combine with water in the air to form sulfuric and nitric acids which falls as precipitation

  4. What makes it acid rain? • Acid precipitation has a pH of less than 5.6 • “soda-pop” rain pH = 3.5 – 4 • Effects of acid rain: • Architecture: • Dissolves concrete and limestone • Damages historic monuments and works of art

  5. Effects of Acid Precipitation • Ecosystems: • Changes the pH of soil – killing tress and plants • Changes the pH of lakes and rivers – killing fish • Causes aluminum in the soil to seep into water and kill fish • Acid shock – sudden influx of acidic water • Spring melting of acidic snow • Kills populations of fish • Causes defective or infertile fish

  6. Fighting Acid Precipitation • States and countries spray lime on acidic lakes • Lime is basic and neutralizes the acid in the lakes

  7. Difficulty Controlling Acid Rain • Pollutants can be released hundreds of miles away from where the acid precip. falls • Factories in the Midwest and eastern U.S. cause acid rain in New England and southeastern Canada

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