Talk:National Ambient Air Quality Standards

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 Definition:  Concentration limits set by the United States Environmental Protection Agency for outdoor ambient air pollutants considered harmful to public health and the environment. [d] [e]
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 Workgroup categories:  Earth Sciences, Engineering and Health Sciences [Categories OK]
 Subgroup categories:  Chemical Engineering and Environmental Engineering
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Concentration limits set by the United States Environmental Protection Agency for outdoor ambient air pollutants considered harmful to public health and the environment.

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