Year: 2013 / Place: Arizona / Subject: United States. Clean Air Act - University of Texas Libraries GeoData Search Results

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1. Particulate Matter (PM-10): Federal Non-Attainment Area Designations, U.S. Region 9, 2013

2013. United States. Environmental Protection Agency. Region IX. This polygon shapefile contains nonattainment areas for particulate matter < 10 microns. Nonattainment areas are geographic areas which have not... United States. Environmental Protection Agency. Region IX.

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1. Particulate Matter (PM-10): Federal Non-Attainment Area Designations, U.S. Region 9, 2013

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