建議都測一測。去年加拿大調查，有8%的房子超過5.5pCi/L的危險濃度。估計美國差不多。

來源: Chinucks 於 2014-11-24 18:53:38 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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