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Clean Air World

Welcome to Clean Air World

The National Association of Clean Air Agencies (NACAA, formerly STAPPA/ALAPCO) welcomes you to Clean Air World. Use this web site to learn about air pollution, find the latest news and information on important air topics and link to governmental air pollution control agencies around the world

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Did You Know?

Americans drive their vehicles over two trillion miles annually enough to take us to the sun and back more than 10,000 times.