See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Up to a quarter of all Americans live in areas where radon levels are ...

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: ...

Risk maps for the cancer-causing gas radon can encourage people to test their homes for the substance, but only if homeowners live in known, higher-risk areas, new University of Oregon research finds.

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

A map detailing levels of a naturally occurring radioactive gas on the Isle of Man has identified homes with higher readings. Radon is found in all buildings and the amount present depends on the land ...

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 ...

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 ...

ProPublica is a nonprofit newsroom that investigates abuses of power. Sign up for Dispatches, a newsletter that spotlights wrongdoing around the country, to receive our stories in your inbox every ...