The Plain English Guide to the Clean Air Act
Clearing the Air in Our National Parks
You might not expect air pollution in our national parks, especially since many are far from big cities and polluting industries. However, air pollution carried far from its sources has caused major reduction in visibility in some of our best-loved national parks. The Clean Air Act has provisions for reducing "regional haze," air pollution that reduces visibility in the national parks. To learn more, visit www.epa.gov/visibility.
These photos show how good and bad the visibility can be at national parks from coast to coast. You can see realtime pictures of visibility at several national parks by visiting the National Park Service Website, www.nps.gov. Air resource specialists at the national parks-rangers who specialize in air pollution-present visitor programs, participate in air pollution monitoring and research, and provide information to visitors interested in air quality.
Acadia |
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 good |
 poor |
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Big Bend |
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 good |
 poor |
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Rocky Mountains |
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 good |
 poor |
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Great Smoky Mountains |
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 good |
 poor |
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