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 access EPA's Environmental Dataset Gateway at Data.gov and search for the individual exhibit titles listed in the "Geospatial metadata" column.
| Indicator | Exhibit | Coverage | Scale | Geospatial metadata |
|---|---|---|---|---|
| Acid Deposition | Exhibit 1. Wet sulfate (SO42-) deposition in the contiguous U.S., 1989-1991 and 2014-2016 | Contiguous 48 states | Local-scale shaded grid | Wet sulfate deposition, 1989-1991 Wet sulfate deposition, 2014-2016 |
| Exhibit 2. Wet nitrate (NO3-) deposition in the contiguous U.S., 1989-1991 and 2014-2016 | Contiguous 48 states | Local-scale shaded grid | Wet nitrate deposition, 1989-1991 Wet nitrate deposition, 2014-2016 |
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| Exhibit 3. Total sulfur deposition in the contiguous U.S., 1989-1991 and 2014-2016 | Contiguous 48 states | Individual clickable monitoring stations | Total sulfur deposition, 1989-1991 Total sulfur deposition, 2014-2016 |
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| Exhibit 4. Total nitrogen deposition in the contiguous U.S., 1989-1991 and 2014-2016 | Contiguous 48 states | Individual clickable monitoring stations | Total nitrogen deposition, 1989-1991 Total nitrogen deposition, 2014-2016 |
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| 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 |
| 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 |
| Exhibit 3. 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 America and Long Island Sound | Exhibit 2. Dissolved oxygen less than 2.0 mg/L in Gulf of America bottom waters, July 25-31, 2021 | Offshore Louisiana and Texas | Local-scale shaded boundary; individual clickable sampling sites | Gulf of America hypoxia zones Gulf of America hypoxia sample locations |
| Exhibit 5. Dissolved oxygen in Long Island Sound bottom waters, August 1-3, 2022 | Long Island Sound | Local-scale shaded grid; individual clickable sampling sites | Long Island Sound hypoxia zones Long Island Sound hypoxia sample locations |
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| Land Cover | Exhibit 1. Land cover of the contiguous U.S., and Alaska based on 2016 NLCD | Contiguous 48 states and Alaska | 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, 1993-2021 | Global ocean | Local-scale shaded grid (each pixel measures 0.25 degrees latitude by 0.25 degrees longitude) | Absolute sea level change |
| Exhibit 3. Relative sea level change along U.S. coasts, 1960-2021 | 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., 1901-2021 | Contiguous 48 states and Alaska | Clickable data by climate division (1 to 13 divisions per state) | Temperature change |
| Exhibit 8. Change in precipitation in the U.S., 1901-2021 | Contiguous 48 states and Alaska | Clickable data by climate division (1 to 13 divisions per state) | Precipitation change |