The Minnesota Department of Health (MDH) provides information on radon and how to protect your family’s health. Much of the soil in the Upper Midwest contains widespread uranium and radium. These minerals continuously break down to release radon gas. Therefore, Minnesota’s geology provides an ongoing supply of radon.
In addition, a large percentage of Minnesota homes have elevated levels of radon in the indoor air because of how they are built and how they operate in our climate. One important factor is that many Minnesota homes have basements that are uses as living spaces.MDH estimates that about one in three (1/3) Minnesota homes have enough radon to pose a significant risk to the occupants’ health over many years of exposure.