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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?

About 20 percent of all energy in the US is consumed by homes. About 27 percent is consumed by use of transportation. Fifty-three percent of all energy is industrial and commercial to make or support things we want to use and buy.