Radon is a naturally occurring, colorless, odorless, water-soluble gas produced by the radioactive decay of radium. Radium is a radioactive metallic chemical element found in pitchblende and other uranium minerals. It is common in the earth’s crust. Radon breaks down in a natural, spontaneous process or "decays" to form other elements. All rocks contain some trace uranium concentrations. The highest concentrations are in plutonic rocks, such as granite. Because the source of radon is the radioactive decay of uranium, higher radon amounts are commonly detected in areas underlain by granites, dark shales, light-colored volcanic rocks, sedimentary rocks containing phosphate, and metamorphic rocks. High levels of radon have been found in all 50 states.
Radon is a well known carcinogen or cancer-causing chemical. If your water tests reveal the presence of radon, your should have your home's air tested as well. A quality air purifier containing activated carbon filters can reduce your airborne exposure to radon. We recommend the Austin Heathmate HM400 Air Cleaner.