The researchers' map reveals the geographical distribution of high radon levels around the country—and where sit levels above the recommended threshold. . Locations with the highest levels ...

CHICAGO (CBS)-- Radon is an invisible threat lurking in thousands of Illinois homes. The CBS 2 Morning Insiders have dug into state records and have found that alarming radon levels showed up in ...

Send in the test kit and you will soon know if your home has high levels of radon. There is no safe level of radon. The national average indoor radon level is 1.3 pCi/L. In Illinois, the average ...

Residents in Champaign County are living with high quantities ... no warning signs. Radon levels in homes are a problem throughout the country, but more than 40 percent of homes in Champaign County ...

Ramping up their campaign to reduce health hazards from radon, state officials released an online map Tuesday that Minnesotans ... have levels of radon so high that homeowners should take steps ...

The contest for high school students will feature 30-second commercial-style video submissions encouraging Illinois residents to test their homes for radon, while middle school students will be ...

Illinois homes do not appear to have serious problems with radon contamination, according to preliminary results of a survey by the Illinois Department of Nuclear Safety. Radon is a radioactive ...