This page contains a downloadable PDF of EPA Region 3's Mid-Atlantic Radon Measurements Map for determining an area's radon potential.

• Region 3 compiled available radon data from state radon programs to create this map. The data represents the average of the test results grouped by zip code. Using both the Radon Zone Map and Mid-Atlantic Radon Measurements Map you can determine the radon potential in your area. However, you should use these maps for informational purposes only; all homes should be tested regardless of geographic location, radon zone or local test data.

  About the data

  The data represents the average of the test results grouped by zipcode.

  The Data was derived from the following agencies:

  • DC Department of the Environment
  • DE Department of Public Health
  • PA Department of the Environment
  • VA Department of Health and WV Department of Health and Human Resources
  • DC, DE, PA and VA data is 2005 to 2009
  • WV data is 2005 to 2007 and there was no available data for MD

• Mid-Atlantic Radon Measurements Map (PDF)(1 pg, 1 MB)