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Land Protection Division Oklahoma Radon Program




These pages last modified  January 21, 2011



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Radon Overview


What is Radon?

Radon is a naturally occurring, radioactive gas that is emitted from the decay of uranium in the soil, rock and water. Radon is odorless, colorless, and tasteless. Radon is essentially harmless at levels found in the atmosphere in most locations, but can become a health hazard if it is trapped and concentrated in homes and other buildings. The only known health hazard of radon is an increased risk of developing lung cancer. In fact, the Surgeon General has warned that radon is the second leading cause of lung cancer in the United States today. Only smoking causes more lung cancer deaths. If you smoke and your home has high radon levels, your risk of lung cancer is especially high.


How Does Radon Get into the House?

Radon gas typically moves up through the ground to the air above and into your home through cracks and other holes in the foundation. Your home traps radon inside, where it can build up. Any home may have a radon problem. This means new and old homes, well-sealed and drafty homes, and homes with or without basements.

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