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 ...

Up to a quarter of all Americans live in areas where radon levels are above the "action level" set by the United States Environmental Protection Agency (EPA). According to a new paper in the ...

In the United States, radon is the leading cause of lung ... The DHS publishes an interactive map of radon test results to show where radon levels are the highest. You can find that map below.

Up to a quarter of all Americans live in areas where radon levels are above the "action level" set by the United States Environmental ... The researchers' map reveals the geographical distribution ...

In the United States, radon is the leading cause of lung ... The DHS publishes an interactive map of radon test results to show where radon levels are the highest. You can find that map below.