Radon and lung cancer
Radon is a radioactive gas released from the normal decay of the elements uranium, thorium and radium in rocks and soil. It is the second leading cause of lung cancer in the United States. Over 20,000 people each year die from radon-related lung cancer.
Learn about radon and lung cancer
EPA's Radon website (U.S. Environmental Protection Agency)
WHO Handbook on Indoor Radon (World Health Organization)
Radon gas and lung cancer (American Cancer Society)
Turner et al. 2011. Radon and lung cancer in the American Cancer Society cohort. Cancer Epidemiology, Biomarkers and Prevention 20(3):438-48.