I think If >4 pCi/L, mitigation is recommended.

来源: 26484915 于 2014-12-13 11:03:43 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (54 bytes)
回答: 家有地下室的，一定注意Radon 由 columbus3002 于 2014-12-13 10:46:42

You cannot sell your house if >4 pCi/L in most states.

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