Interactive Maps

The table below identifies the ROE indicators that contain interactive maps. Follow the links in the “Exhibit” column to view each map in context. Users who want more detailed information about the underlying mapping services can follow the links in the ˜Geospatial metadata” column, which will bring you to EPA's Environmental Dataset Gateway.

Indicator	Exhibit	Coverage	Scale	Geospatial metadata
Acid Deposition	Exhibit 1. Wet sulfate (SO₄^2-) deposition in the contiguous U.S., 1989-1991 and 2011-2013	Contiguous 48 states	Local-scale shaded grid	Wet sulfate deposition, 1989-1991
		Contiguous 48 states	Local-scale shaded grid	Wet sulfate deposition, 2011-2013
	Exhibit 2. Wet nitrate (NO₃^-) deposition in the contiguous U.S., 1989-1991 and 2011-2013	Contiguous 48 states	Local-scale shaded grid	Wet nitrate deposition, 1989-1991
		Contiguous 48 states	Local-scale shaded grid	Wet nitrate deposition, 2011-2013
	Exhibit 3. Total sulfur deposition in the contiguous U.S., 1989-1991 and 2011-2013	Contiguous 48 states	Individual clickable monitoring stations	Total sulfur deposition, 1989-1991
		Contiguous 48 states	Individual clickable monitoring stations	Total sulfur deposition, 2011-2013
	Exhibit 4. Total nitrogen deposition in the contiguous U.S., 1989-1991 and 2011-2013	Contiguous 48 states	Individual clickable monitoring stations	Total nitrogen deposition, 1989-1991
		Contiguous 48 states	Individual clickable monitoring stations	Total nitrogen deposition, 2011-2013
Acidity in Lakes and Streams	Exhibit 2. Areas with acid-sensitive waters in the contiguous U.S.	Contiguous 48 states	Reference map with local-scale boundaries	Acid-sensitive waters
Carbon Storage in Forests	Exhibit 2. Forest biomass in U.S. counties per square mile of land, 2013	Contiguous 48 states, southern Alaska, Puerto Rico, U.S. Virgin Islands	Clickable county-level data	Forest biomass per square mile
Carbon Storage in Forests	Exhibit 3. Percent change in carbon stored in U.S. forests, by county, 1990-2013	Contiguous 48 states, southern Alaska, Puerto Rico, U.S. Virgin Islands	Clickable county-level data	Carbon storage percent change
Ecological Connectivity	Exhibit 1. Ecological hubs and corridors in the contiguous U.S., based on 2001 NLCD	Contiguous 48 states	Local-scale shaded grid (30-meter pixels)	Ecological hubs and corridors
Fish Faunal Intactness	Exhibit 1. Percent reduction in native fish species diversity in the contiguous U.S. from historical levels to 2014	Contiguous 48 states	Clickable watersheds (generally several watersheds per state)	Percent reduction of fish fauna
Fish Faunal Intactness	Exhibit 3. Percent reduction in native fish species diversity in the contiguous U.S. from historical levels to 2014	Contiguous 48 states	Clickable watersheds (generally several watersheds per state)	Absolute reduction of fish fauna
Hypoxia in Gulf of Mexico and Long Island Sound	Exhibit 2. Dissolved oxygen less than 2.0 mg/L in Gulf of Mexico bottom waters, July 27-August 1, 2014	Offshore Louisiana and Texas	Local-scale shaded boundary; individual clickable sampling sites	Gulf of Mexico hypoxia zones
		Offshore Louisiana and Texas		Gulf of Mexico hypoxia sample locations
	Exhibit 5. Dissolved oxygen in Long Island Sound bottom waters, August 4-6, 2014	Long Island Sound	Local-scale shaded grid; individual clickable sampling sites	Long Island Sound hypoxia zones
		Long Island Sound		Long Island Sound hypoxia sample locations
Land Cover	Exhibit 1. Land cover of the contiguous U.S., based on 2011 NLCD	Contiguous 48 states	Local-scale shaded grid (30-meter pixels)	Land cover
Radon: Homes Above EPA's Action Level	Exhibit 2. EPA map of radon zones	50 states	Clickable county-level data	Radon zones
Sea Level	Exhibit 2. Changes in absolute sea level along U.S. coasts, 1993-2016	Global ocean	Local-scale shaded grid (each pixel measures 0.25 degrees latitude by 0.25 degrees longitude)	Absolute sea level change
Sea Level	Exhibit 3. Relative sea level change along U.S. coasts, 1960-2015	U.S. ocean coasts	Individual clickable monitoring stations	Relative sea level change
Temperature and Precipitation	Exhibit 4. Rate of temperature change in the U.S., 1901-2015	50 states	Regional-scale shaded grid (each cell measures 2.5 degrees latitude by 3.5 degrees longitude)	Temperature change
Temperature and Precipitation	Exhibit 8. Rate of precipitation change in the U.S., 1901-2015	50 states	Regional-scale shaded grid (each cell measures 2.5 degrees latitude by 3.5 degrees longitude)	Precipitation change

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