Granite Counter-Top contains Radioactive Minerals

In a recent report told that granite counter tops could endanger your family. A physics professor at Rice University is warning of a radioactive threat found in some kitchen countertops.

Some granite countertops contain levels of uranium high enough to be dangerous to humans, said Rice professor W.J. Llope.

Using a spectrometer, Llope tested 25 varieties of granite bought from Houston-area dealers. In some cases, he said, he found countertops that could expose homeowners to 100 millirems of radiation in just a few months — the annual exposure limit set by the Department of Energy for visitors to nuclear labs.

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