Radon is a radioactive gas which comes from the decay of uranium in the ground. It is a health hazard and causes cancer in people and animals exposed to it. In the United States homeowners are advised by the [[EPA]] to test for the presense of Radon and if found to take remedial action. | Radon is a radioactive gas which comes from the decay of uranium in the ground. It is a health hazard and causes cancer in people and animals exposed to it. In the United States homeowners are advised by the [[EPA]] to test for the presense of Radon and if found to take remedial action. |