What is radon?
Radon is an odorless, tasteless and invisible gas produced by the decay of naturally occurring uranium in soil and water. Although radon can sometimes enter your home through well water, radon from soil gas is the main cause of radon problems. It typically moves up through the ground to the air above and into your home through cracks and other holes in the foundation, trapping radon inside, where it can build up. Any home, no matter the age or condition, may have radon problems. Radon is radioactive and a proven carcinogen. After smoking, exposure to radon is the second leading cause of lung cancer in the US and responsible for an estimated 21,000 deaths every year. The EPA recommends homes be fixed (mitigated) if the radon level is 4 pCi/L (picocuries per liter) or more.