Radon is a colorless, odorless and tasteless radioactive gas that occurs naturally in most rocks and soil. This gaqs is produced by the breakdown of uranium in soil, rock and water. Radon is harmlessly dispersed in outdoor air. However, when trapped in buildings, as the levels elevate, it can increase the risk of lung cancer.
According to the Surgeon General, exposure to radon gas is the second leading cause of lung cancer in the United States. The EPA stated in their 2003 document, Assessment of Risks from Radon in Homes, radon is estimated to cause about 21,000 lung cancer deaths per year. However, the time between exposure and the onset of cancer may be many years.
Radon is not known to cause other illnesses or problems such as upper respiratory infections, colds or allergic reactions.
It is true that Radon can be found in water. However, it is more common in private wells. Consuming water contaminated with Radon poses an inhalation risk as well as an ingestion risk.