I just received word that one of our past mitigations, possibly one of the highest we’ve seen yet, has been reduced to a .9pCi/l. This is great news being that it is the EPAs long term goal to get indoor levels to outdoor averages around .4pCi/l. This shows that their goal may be within reach if the systems are designed and installed correctly. Spread the word. There is a solution to a known problem that could save your life.