"Not enough Minnesotans are testing their homes for radon, despite the state having some of the highest average levels of the dangerous gas in the country, the Minnesota Department of Health (MDH) warned last week.

According to an MDH analysis of data collected during a recent five-year period, only 1 percent of properties in Minnesota have been tested for radon.  Yet that same data suggests that 2 in 5 (or about 40 percent) of homes in the state have a radon level of 4.0 picocuries per liter of air (pCi/L) or higher.

MDH officials strongly recommend that buildings with verified radon levels of 4.0 pCi/L or higher have a radon mitigation system installed. "

Susan Perry reports for MinnPost January 5, 2017. [2]