Skip to Navigation
Skip to Content
Share this page

Support PSR!

Make a difference in the challenge to confront global warming and prevent nuclear war and the development and use of nuclear weapons.

Donate Now »

Take Action

The PBS Documentary Command and Control illustrated the risks of maintaining nuclear arsenals. We need your help to stop a whole new nuclear arms race.

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.

Download
Last Updated July 31, 2013

Browse Resources

Action Alerts

  • Help stop this dangerous Trump nominee!

    Help stop Scott Pruitt – climate change denier, mouthpiece for the oil and gas industry – from being chosen as next Administrator of the EPA. Add your name to our petition now.

  • Tell Congress: Protect our Health -- Oppose extreme anti-health bills

    Congress should ensure that federal agencies enforce laws that protect our water, air quality and public health--not curb the power of those agencies to carry out their mission. Tell your representative you oppose the REINS Act and the Midnight Rule Relief Act of 2017.

More action alerts»

Resources

In the Spotlight

  • November 30, 2016
    Eating for Climate and Health
    PSR's new PowerPoint presentation on how climate change impacts food production, and agriculture's contribution to climate change.