Every house has some radon; outdoor air averages about 0.4 pCi/L. The question is how much. Below 2 pCi/L, retest every two years. Between 2 and 4, the EPA says consider fixing. At 4 or more, fix it, and keep living there normally while it is scheduled.
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In Central Ohio a high result is common rather than unusual: every county in the region is EPA Zone 1, and Franklin County's tested homes had an estimated mean of 9.5 pCi/L from 2008 to 2017. That also makes the fix routine. The EPA rates active sub-slab suction at 50 to 99 percent reduction, and Ohio's standards govern how it is installed, labeled, and verified. While an install is being scheduled, small steps help at the margins: spend less time in a basement room if you can, and keep up normal ventilation. The design target written into Ohio's standards is a level as low as reasonably achievable in every part of the house, not just a pass under 4. See what your test number means.