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Federal
EnviroAtlas - Selected National Air Toxics Assessment Results by Census Tract - 2014 11 recent views
U.S. Environmental Protection Agency —
These layers are a selection of the National Air Toxics Assessment (NATA) 2014 estimates of ambient concentrations and health-effect results by 2010 U.S. Census... -
Federal
EnviroAtlas - 2016 Percent Tree Canopy Cover by 12-digit HUC for Puerto Rico and the U.S. Virgin Islands
U.S. Environmental Protection Agency —
This EnviroAtlas dataset represents the percentage of land area within each 12-digit hydrologic unit code (HUC) in Puerto Rico and the US Virgin Islands that is... -
Federal
EnviroAtlas - 2012 Land Cover by 12-digit HUC for US Virgin Islands
U.S. Environmental Protection Agency —
This EnviroAtlas dataset represents the percentage of land area that is classified as natural, forest, wetland, agricultural, natural, and developed land cover using... -
Federal
EnviroAtlas - Selected National Air Toxics Assessment Results by State - 2014
U.S. Environmental Protection Agency —
These layers are a selection of the National Air Toxics Assessment (NATA) 2014 estimates of ambient concentrations and health-effect results by state. The... -
Federal
EnviroAtlas - Selected National Air Toxics Assessment Results by County - 2014
U.S. Environmental Protection Agency —
These layers are a selection of the National Air Toxics Assessment (NATA) 2014 estimates of ambient concentrations and health-effect results by 2010 counties. The...