Which Granite Has The Most Radon

Fact all natural products especially stone minerals.

Which granite has the most radon.

While testing your home is always a good idea a few clarifications are in order. The reports were about granite countertops that contain radium which can emit radon a radioactive gas that can cause lung cancer. Environmental protection agency has published guidelines regarding permissible concentrations of radon in air. Radon that originates in the soil is the main cause of radon problems the epa says.

Some granite countertops have been found to give off trace amounts of radon and reporters cited a few kitchens with radon levels as high as 25 times the epa s safety limit of 4 picocuries per liter of. At most only a tiny percentage of them have been tested for radon or radiation levels but a recent test of 13 types of granite typically used for countertops found no radon or very low levels of. The health physics society after testing several samples of commercial granite concluded that the radon produced by a typical granite countertop would be about 30 times lower than the level laid out in the epa guidelines. While radon gas and radiation emission levels attributable to granite are not typically high there are simply too many variables to generalize about the potential health risks inside a particular home that has granite countertops.