There is a silent threat building up in the basements and crawl spaces of millions of American homes, and most people have no idea it is there. Radon is a naturally occurring radioactive gas that is ...

The most dangerous threat in a home might not crackle, leak, or smell. It might sit quietly in the basement right now, building up with every passing day. Radon does not sting the nose. It does not ...

A study of more than 700 counties across multiple U.S. states found a link between childhood leukemia and levels of decaying radon gas, including those lower than the federal guideline for mitigation.

Radon is an odorless, invisible radioactive gas. It's naturally released from rocks, soil and water—and it can get trapped inside homes, offices or schools. There's no known safe level of radon. There ...

Add Yahoo as a preferred source to see more of our stories on Google. What is radon? We asked an expert everything you need to know. (Image via Getty Images) Radon gas levels in the home are a real ...

Radon gas levels in the home are a real health threat. While we know that a safe and comfortable living space informs our mental and emotional health, for many people, it's our home that unknowingly ...