Year: 1979 / Resource Class: Datasets / Subject: Air quality—Standards - University of Texas Libraries GeoData Search Results

Start Over Year 1979 Resource Class Datasets Subject Air quality—Standards

1. Nonattainment Areas for Ozone Pollution: United States and Territories, 1979

1979. United States. Bureau of Transportation Statistics and Stackhouse, Cecil. This polygon shapefile depicts nonattainment and maintenance areas for the United States and its Territories for the enforcement of the ozone (O3) ... United States. Bureau of Transportation Statistics.

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1. Nonattainment Areas for Ozone Pollution: United States and Territories, 1979

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