Despite its prevalence, there is no known level of radon that is safe, according to the Centers for Disease Control and ...

Air quality maps are regularly updated. "You can find daily ozone forecasts and real-time ozone conditions for over 300 cities across the country at the AIRNow Web site: airnow.gov," the EPA says.

The EPA has a radon zone map [PDF], and much of the U.S. has high to moderate potential for indoor radon levels over 2 pCi/L. Radon comes from soil, rock, and groundwater, and it can seep into ...

The EPA Radon Zone Map, published in 1993, was based on limited data and intended to indicate predicted average indoor radon levels by county and not for site-specific risk evaluation.

Brian Hanson, the director of Kansas State University’s radon programs and the operator of the National Radon Program Services Center, said the EPA first published the map in 1993 and has not ...

A dangerous gas hiding in the soil is the leading cause of lung cancer among non-smokers. Schools aren’t required to test for it, but a local group and lawmaker are trying to change that.

The Environmental Protection Agency maintains a map of radon risks for each county/city in the U.S. Unlike other states in the highest risk zones, Virginia does not require radon tests during real ...

A new map has revealed that up to 25 percent of Americans live in areas where radon levels are considered unsafe by the Environmental Protection Agency (EPA). Are YOU in the danger zone?

The Wisconsin Department of Health Services is urging residents to test their homes for radon, a naturally occurring gas that causes lung cancer. About 1 out of every 10 homes in Wisconsin has high ...

Average indoor levels of radon in U.S. homes is about 1.3 pCi/L (picocuries per liter). While there is not a safe level of exposure to radon, the EPA recommends homes be fixed if the radon level ...

Average indoor levels of radon in U.S. homes is about 1.3 pCi/L (picocuries per liter). While there is not a safe level of exposure to radon, the EPA recommends homes be fixed if the radon level ...