How Much Radiation Do Granite Countertops Emit. They do not test your countertops directly; rather, they register the. Home testing kits can give you a good sense of how much radon is in the air of your home.
If you're concerned, ask the dealer to have the slab tested and show you the results. Radon originating in the soil beneath homes is a more common problem and a far larger public health risk In addition to radon, naturally occurring radioactive elements in the granite can emit small amounts of beta and gamma radiation. All granite countertops emit a small amount of radiation, but some are far higher than E.
Like all rocks, granite does emit radiation in the form of trace amounts of radon gas.
New York State Health Department research scientist Michael Kitto, PhD, says only a small fraction of the granite samples he has tested.
At Arch City, we are frequently asked this question by home. It is likely that radiation damage caused by uranium imparts a pinkish or reddish color to certain minerals in the granite. The EPA article, Radiation Protection - Granite Countertops and Radiation confirms that granite tiles do in fact emit radon gas: Any type of rock could contain naturally occurring radioactive elements like radium, uranium and thorium.