The average radon level in occupied floors of your home determines the lung cancer risk. The higher your confirmed results are, the more surely you should fix your house. L is the U.S. EPA Guideline. Houses with higher radon levels can achieve significant reductions of radon. No level of Radon is considered absolutely safe.
L is the lowest achievable level.
While in some cases you can treat the problem yourself, you should always consider the use of trained Radon reduction personnel who have passed an EPA test. Such radon mitigation contractors working in Wisconsin are on an EPA Radon Contractor Proficiency list for the state. To get a list of individuals in Wisconsin certified in Radon Measurement Proficiency, call one of the Wisconsin Radon Information Centers , toll free 888 569-7236. Active Soil Depressurization is usually highly effective. It involves continually withdrawing air from beneath the basement floor or a membrane placed over a crawl space dirt floor.