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.
Which granite has the most radon.
Fact all natural products especially stone minerals.
Recent media attention has focused on granite counter tops and whether they can increase your indoor radon levels.
Environmental protection agency has published guidelines regarding permissible concentrations of radon in air.
The epa says that approximately one of every 15 homes throughout the country whether new or old has elevated radon levels.
Radon that originates in the soil is the main cause of radon problems the epa says.
The reports were about granite countertops that contain radium which can emit radon a radioactive gas that can cause lung cancer.
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.
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.