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1. Nonattainment Areas for Carbon Monoxide Pollution: United States and Territories, 1971
1971. 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 carbon mono... United States. Bureau of Transportation Statistics.
2. Nonattainment Areas for Carbon Monoxide Pollution: United States and Territories, 1990
1990. 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 carbon mono... United States. Bureau of Transportation Statistics.
3. Nonattainment Areas for Nitrogen Dioxide Pollution: United States and Territories, 1971
1971. Stackhouse, Cecil. This polygon shapefile depicts nonattainment and maintenance areas for the United States and its Territories for the enforcement of the nitrogen di... United States. Bureau of Transportation Statistics.
4. Nonattainment Areas for Nitrogen Dioxide Pollution: United States and Territories, 1990
1990. 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 nitrogen di... United States. Bureau of Transportation Statistics.
5. USA (Non-Attainment Areas: Carbon Monoxide, 2004)
ICF Consulting and Bureau of Transportation Statistics (BTS). Non-attainment and maintenance areas for the United States and its territories. Bureau of Transportation Statistics (BTS).
6. USA (Non-Attainment Areas: Carbon Monoxide, 2006)
Federal Highway Administration, Office of Planning, HEPP-1, U.S. Environmental Protection Agency, and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview De... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).
7. USA (Non-Attainment Areas: Nitrogen Dioxide, 2004)
Bureau of Transportation Statistics and ICF Consulting. Non-attainment and maintenance areas for the United States and its territories. Bureau of Transportation Statistics (BTS).
8. USA (Non-Attainment Areas: Nitrogen Dioxide, 2006)
Federal Highway Administration, Office of Planning, HEPP-1, U.S. Environmental Protection Agency, and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview De... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).
9. USA (Non-Attainment Areas: Ozone, 2004)
Bureau of Transportation Statistics and ICF Consulting. Non-attainment and maintenance areas for the United States and its territories. Bureau of Transportation Statistics (BTS).
10. USA (Non-Attainment Areas: Ozone, 2006)
Federal Highway Administration, Office of Planning, HEPP-1, U.S. Environmental Protection Agency, and Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS). Non-attainment and maintenance areas for the United States and its territories. For more detailed information on this dataset, see the Overview De... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).