Radon is the second leading cause of lung cancer in the United States, after smoking, and EPA and the Surgeon General’s office estimate it causes more than 21,000 lung cancer deaths a year (CDC). It causes no symptoms you would notice, so testing your home is the only way to know your exposure.
The guides below explain the health effects and who is most at risk. They are general information, not medical advice: talk to a doctor about any health concerns.