The Indoor Radon Program, within the Environmental Management Branch, seeks to
reduce the health risk from radon exposure by increasing awareness, identifying
areas of high radon potential, and encouraging all Californians to test their
homes for radon, fix their homes if they have a radon problem, and build new
homes radon-resistant. Test. Fix. Save a
Life.
Interactive California
Radon Potential Map
The California Geological Survey has released an interactive web
map providing radon potential information for areas of California with
completed radon potential maps. Downloadable GIS
data for each study area can now be downloaded through the interactive
map.
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Contact the radon program at
radonprogram@cdph.ca.gov (email) or 1-800-745-7236 (telephone).