Which Granite Has The Most Radon

Ok so the risk from granite is minuscule but how common is radon in u s.

Which granite has the most radon.

While testing your home is always a good idea a few clarifications are in order. Fact all natural products especially stone minerals. The epa says that approximately one of every 15 homes throughout the country whether new or old has elevated radon levels. 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.

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. 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. Environmental protection agency has published guidelines regarding permissible concentrations of radon in air. 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.