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Drinking Water Fact Sheet: Radon

Radon is a naturally occurring radioactive gas formed by uranium and radium in rocks and soil. Most radon seeps into the air of buildings through sump holes, floor drains, cinderblocks, dirt floors, and cracks in foundations and concrete floors. However, radon can also enter homes via the drinking water supply. Groundwater dissolves radon from uranium-containing rock, resulting in generally higher concentrations of radon in well water compared with drinking water derived from surface waters, such as rivers and lakes.

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  • Video: Extreme Weather: Impacts on Public Health

    Video of the first in a series of climate change webinars from PSR. Hear the health impacts of climate change and learn how to write a letter to the editor on climate change. Read more »

  • Climate Change and Famine

    Climate change is already threatening the Earth’s ability to produce food. These effects are expected to worsen as climate change worsens. Read more »

  • Hope for a Heated Planet

    Author Bob Musil, former PSR executive director and now scholar-in-residence at American University, has written an insightful and informative account about the climate change issue and how it has finally emerged in the public’s mind as a major public health concern. Read more »

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