这就是我现在还犹豫没换granite countertop 的原因。计划4年内会搬家，花岗岩台面会增加房子的价钱。

As the article says, "the largest source of background radiation comes from radon gas in our homes". Radon gas is the number two contribution to lung cancer next to smoking. All granites emit some radon gas, although some ganites emit more and some less, and there is no way to detect it before the installation.

所有跟帖： 

• 是啊，那么大理石（marble)相比于花岗岩（granite)是不是比较没有辐射？ -blueiris2010- ♀ (0 bytes) () 12/08/2010 postreply 11:29:27