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Search for "Nitrogen %28Water Quality%29" - The top results (relevance sort) are listed below:
NC OneMap0 Results
\"ArcGISEsri Maps & Data Group (Recommended for Layer Package downloads)
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    • All ArcGIS Online content
    9 Results beginning with...
  • Nitrogen_Tidal_Waters
  • Nitrogen_Impoundments
  • Blitz Data Map

    • \"data.gov\"2 Results
  • California Aqueous Chemistry
  • County-based estimates of nitrogen and phosphorus content of animal manure in the United States for 1982, 1987, and 1992.

    • \"Trimble0 Results

    NCSU Data Collection

    [ Hide ] Possible Related Terms:
    Air Pollution, Air Quality, Forests

    Important Legacy denotes outdated data. A more recent version likely exists. Consider an "External Data Source" option linked above, or click the Collection link for updated source options.
    TitleDateSorted in Descending OrderCollectionExtentScaleMD
    CMAP: Nitrogen-saturated Forests of the Conterminous U.S.
    Legacy    		1998 C-MAPConterminous United States 1:1,000,000 Metadata Link
    CMAP: Nitrogen-saturated Forests of the Conterminous U.S.
    Legacy    		1998 C-MAPConterminous United States 1:2,000,000 Metadata Link