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Granite counters?

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Can a granite countertop in the kitchen be a potential cause of lung cancer by giving off dangerously high levels of radon gas?

The New York Times created a stir and triggered alarm recently when it reported a granite kitchen counter in an upper-New York state woman's home was found to emit radiation at 10 times the level found elsewhere in her house.

She had the countertop ripped out. It was tested and found to contain high levels of uranium, which releases radon gas as it decays.

The U.S. Environmental Protection Agency was later asked whether there is a danger of radon gas or radiation being emitted from granite countertops.

The U.S. government agency's reply: "Some granite used for countertops may contribute variably to indoor radon levels. At this time, however, EPA does not believe sufficient data exist to conclude that the types of granite commonly used in counter tops are significantly increasing indoor radon levels."

The EPA said some granite may emit gamma radiation above typical background levels. "While radiation levels are not typically high, measurement of specific examples may reveal higher than expected levels on a case-by-case basis."

Ottawa residents Greg Osborne and Laura Wardlaw heard about the New York Times article from a friend, who knew they would be interested since they had recently spent close to $6,000 for granite countertops in their west-end home.

"I suspect the biggest health risk is the psychological and resulting physiological impact of reading and keeping current with all the possible health impacts in our lives," says Wardlaw.

Still, the consensus is that this couple--and anyone concerned about possibly high radon levels in their home--should have the home tested for the gas.