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Mapping Illustrates Washington DC Radon Data and Encourages Testing

by Margaret Henderson

The Washington DC Department of Energy and Environment provides outreach and education about radon in a variety of ways, including illustrating the radon test data through mapping.

“Home Radon Test Kit Results in DC and Maryland” (2010-2015) illustrates radon test findings.
Additional mapping of 2010-1012 data is show in “Spatial Distribution of Indoor Radon.” The maps show that majority of results appear to be less than 4pCi/L, the EPA recommended action level. However, higher levels are found in various areas, indicating a need to test for radon to be sure about the levels in each residence.

To encourage testing, the department notes that common myths about radon should not influence the decision to test or not. The common myths listed on the department website include:

  • "I don't have a basement, I probably don't have a radon problem."
  • "I don't live in an area designated as a high radon zone, so my home won't have a problem."
  • "Two of my neighbors have tested their homes for radon and they don't have high levels, so I probably don't either."

District residents can obtain a free radon test kit by calling the radon hotline at (202) 535-2302.

For more information, contact:
Keith Keemer
Environmental Protection Specialist
Air Quality Division
Department of Energy & Environment
Government of the District of Columbia
1200 First Street, NE, 5th Floor
Washington, DC 20002
Desk: (202) 535-2999
Cell: (202) 369-3610
Web: http://doee.dc.gov.