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 ...

Note the high prevalence across the Taconics, Central New York and the Southern Tier. Meanwhile levels are much lower down across the New York City ... risk, as there is no safe level of radon.

According to a new paper in the journal PNAS, over 83 million people across the U.S. live in residences with radon levels over 148 Becquerels per cubic meter (Bq/m 3). The researchers' map reveals ...