Numerous scientific studies conclude that there are two ways in which countertops, tiles and other finishes made of Granite might emit any level of radiation. The first is by the release of tiny amounts of the radioactive gas, radon. The secound is by direct radiation from the surface itself to the homeowner. |
in both cases, the radiation emited is from the same process-natural radioactive decay of one element into another. Compared to other radiation sources in the home and outside, the risk to the homeowner from radioactivity or radon gas emitted from a granite countertop or tiles is practically non-existent.
Based on existing studies from U.S. EPA and The Florida Depto. of Health (DOH), there was a measurable gamma radiation from granite as there is always around us, just not at level of concern.