Map from the paper showing the spatial distributions of predicted radon concentrations at screening floor in winter. L. Li, B.A. Coull, C.L. Zilli Vieira, P. Koutrakis, High-resolution national ...

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). Are YOU in the danger zone?

LUCKEY, Ohio — Radon testing conducted at three Luckey-area schools by state health authorities last week found acceptably low levels of radon on par with the national indoor average, according ...

After conducting dozens of radon tests from each of those district buildings last week, the Ohio EPA said the highest radon readings at the high school, middle school and elementary school were 1. ...

Maps from the EPA show the entire Tri-State is at an elevated risk. More than half of Southwest Ohio is at the highest risk. Northern Kentucky is mostly at an elevated risk, with a few counties in ...

Ideally, Tranter said, properties should be tested once every five years, for annual testing rates of about 20 percent. Radon is the second-leading cause of lung cancer after smoking.

DAYTON — Most Southwest Ohio residents are at the highest risk level for exposure to radon gas in their homes, so the Regional Air Pollution Control A ...

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 ...