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Trends in primary pollutants in the southern Appalachians from 1940-1995

National trends in emmissions of nitrogen oxides, volatile organic compounds, sulfur dioxide, and particulate matter. Implementation of the Clean Air Act of 1970 reduced human-caused emissions of sulfur dioxide, volatile organic compounds, and particulat

Trends in primary pollutants in the southern Appalachians from 1940-1995
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Photographer(s): SAMAB (1996)

Copyright: Public Domain

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