You can't see radon. And you can't smell it or taste it. But it may be a problem in your home. Radon comes from the natural breakdown of uranium in soil, rock, and water. Radon is the second leading cause of lung cancer in the United States.
There are low levels of radon outdoors. Indoors, there can be high levels. Radon can enter homes and buildings through cracks in floors, walls, or foundations. Radon can also be in your water, especially well water. Testing is the only way to know if your home has elevated radon levels. It is inexpensive and easy. You can buy a test kit at most hardware stores or hire someone to do a test. Radon reduction systems can bring the amount of radon down to a safe level. The cost depends on the size and design of your home.
- Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family from Radon (Environmental Protection Agency) - PDF Also in Spanish
- Consumer's Guide to Radon Reduction (Environmental Protection Agency) - PDF
- Health Risk of Radon (Environmental Protection Agency)
- Hidden Hazards: Clearing Out Toxins in the Home (National Institutes of Health) Also in Spanish
- Radon (Environmental Protection Agency)
- Radon (National Institute of Environmental Health Sciences)
- Radon (Agency for Toxic Substances and Disease Registry)
- Radon and Cancer (National Cancer Institute) Also in Spanish
- Radon and Your Health (Centers for Disease Control and Prevention) Also in Spanish
- Radon Resources for Home Buyers and Sellers (Environmental Protection Agency)
Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)
- Article: The burden of disease attributable to indoor air pollutants in China...
- Article: Radon exposure and its influencing factors across 3,140 workplaces in Spain.
- Radon -- see more articles
- Article: Behaviourally-informed household communications increase uptake of radon tests in a randomised...
Find an Expert
- Radon Hotlines and Information Resources (Environmental Protection Agency)