IOWA, MISSOURI & ILLINOIS — You can't see it or taste it, but it could be there. "Radon is odorless and colorless, you don't know its presence until you measure it in the environment," said Dr. Valena ...

A new map has revealed that up to 25 percent of Americans live in areas where radon levels are considered unsafe by the ...

Average predicted community-level radon concentrations at screening floor across contiguous United States during 2001 to 2021. Credit: Proceedings of the National Academy of Sciences (2025). DOI: ...

Radon is all around us, but exposure to high levels can prove detrimental. Here's what you should know.

Researchers from Harvard T.H. Chan School of Public Health have assembled a national database with millions of multi-day indoor radon measurements from 2001 to 2021. Findings reveal that nearly 25% of ...