A new map has revealed that up to 25 percent of Americans live in areas where radon levels are considered unsafe by the Environmental Protection Agency (EPA). Radon is a radioactive gas that has no ...

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 ...

A look at frequently asked questions about radon and what Ohioans can do to protect themselves from the toxic gas.

A new map showing which areas of the state have the highest levels of radon testing shows the areas with the highest levels of this cancer-causing gas sometimes have the lowest testing levels. “If you ...

Airthings, the company behind digital sensors that detect radon gas, has built a global map based on frequently updated data pulled from its distributed network of devices installed in customers' ...

THE RADON LEVELS IN SOUTH CAROLINA. HOMES. ACCORDING TO SOUTH CAROLINA, RADON LEVELS IN HOMES ARE HIGHER IN THE UPSTATE THAN OTHER PARTS OF THE STATE. JENNIFER READY EXPLAINS WHAT THIS MEANS AND HOW ...

New Oregon radon data out Tuesday show many regions of the state at moderate risk of high radon levels, with several pockets of high-risk areas around the Willamette Valley and in eastern and southern ...

More than half of New Hampshire is underlain by groundwater that has a 50% or higher probability of having elevated levels of radon, according to a recent study by the U.S. Geological Survey. The new ...

Radon, a naturally occurring radioactive gas, may be lurking in Ohio classrooms. But not every district tests for it.

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: ...