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 ...

You got the radon test results back. The numbers are high—maybe 8.0 pCi/L, maybe higher. Your realtor says you need mitigation before closing. Or maybe you've lived in your Wisconsin home for years ...

When you think about pollution, you may only consider what you’re exposed to outdoors. But indoor air quality in your home matters, too, and it can be majorly affected by the presence of a radioactive ...

Radon is an odorless gas that causes more than 20,000 cancer-related deaths every year. Iowa and North Dakota have the highest risk-level for radon, and now a central Iowa real estate company has ...

This article is co-published with ProPublica, a nonprofit newsroom that investigates abuses of power. About 5 billion years ago, stars merged and exploded, creating uranium that eventually became ...