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A natural radioactive gas that you can not see, smell, or taste. Some research has linked long term exposure to radon gas with increased risk of lung cancer.

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This effort is supported by funding from the U.S. Centers for Disease Control and Prevention Environmental Public Health Tracking Program, Cooperative Agreement Number 5U38EH000619-02. The contents of this Website are solely the responsibility of the authors and do not necessarily represent the official views of the Centers for Disease Control and Prevention.