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Author
United States. Department of Transportation. Research and Innovative Technology Administration
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Shapefile
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Subject
environment
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Institution
Columbia
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Year
2011
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Search Results
1. United States Hydrographic Polygons, 2013
2011. United States. Bureau of Transportation Statistics, United States. Department of Transportation. Research and Innovative Technology Administration, and United States. Bureau of the Census. The hydro polygon/arc coverages were created using TIGER/LINE 2000 shapefile data gathered from ESRI's Geography Network. The individual county hyd... U.S. Bureau of the Census (BOC).
2. United States Non-Attainment Areas: Nitrogen Dioxide, 2013
2011. United States. Bureau of Transportation Statistics, United States. Department of Transportation. Research and Innovative Technology Administration, United States. Federal Highway Administration., and United States. Environmental Protection Agency. Non-attainment and maintenance areas for the United States and its territories. The standard for the NO2 NAA is 0.053 ppm. For more detailed inform... Research and Innovative Technology Administration's Bureau of Transportation Statistics (RITA/BTS).
3. United States Non-Attainment Areas: Ozone 1 hour, 2013
2011. United States. Bureau of Transportation Statistics, United States. Department of Transportation. Research and Innovative Technology Administration, and United States. Environmental Protection Agency. Non-attainment and maintenance areas for the United States and its territories. The standard for the Ozone 1 hour NAA is 0.12 ppm. For more detaile...
4. United States Non-Attainment Areas: Ozone 8 hour, 2013
2011. United States. Bureau of Transportation Statistics, United States. Department of Transportation. Research and Innovative Technology Administration, and United States. Environmental Protection Agency. Non-attainment and maintenance areas for the United States and its territories. The standard for the Ozone 8-hour NAA is 0.075 ppm. For more detail...