A groundbreaking interactive map shows where underneath the US hydrogen is likely to be most prevalent and, according to researchers, there's a lot more than previously thought. The map, which can be ...

Over 83 million people around the U.S. live in residences with radon levels over the EPA's action level, new data reveals.

A new map has revealed that up to 25 percent of Americans ... As uranium inside the soil breaks down and releases radon gas, that gas can enter homes and buildings through cracks in the foundation.