Radon is a naturally occurring, colorless, odorless, radioactive gas. It can affect indoor air quality and may cause lung cancer. Because the radon molecule is heavier than air, it may accumulate in the lowest area of our homes -- the basement. If you use your basement regularly or allow the kids to play or sleep there, it's a good idea to have the area tested for radon.
Click here for information from the EPA about radon testing. See links below the map for more information.
From the US Environmental Protection Agency: