According to Radon.com, 46 percent of homes in Douglas County, NE have radon levels of 4 pCi/L (picocuries) and above. Fifty-two percent of homes in Pottawattamie County, IA have radon levels of 4 pCi/L and above. The average national indoor radon level is 1.3 pCi/L.
A family whose home has radon levels of 4 pCi/L is exposed to about 35 times as much radiation as the Nuclear Regulatory Commission would allow if that family was standing next to the fence of a radioactive waste site (Radon.com)
Radon is dangerous. "Radon is recognized as the second leading cause of lung cancer," Dr. Krajicek said. He added it can be even more concerning when a smoker lives in a home with or is exposed to high radon levels.
Among nonsmokers, radon is the leading cause of lung cancer. Children may be more sensitive to radon because of their higher respiration rate.
It's easy to test for radon. Kits are available for about $10 at many home improvement or hardware stores. Dr. Krajicek said: "If you have elevated levels in your home you should seek expert advice." Do-it-yourselfers may be able to reduce the concentration of radon in their homes for less than $500. Certified radon mitigators are also available.