Radon Levels In Granite Countertops. In a recently published review of radon tests conducted by others Llope reported that 92 of 95 granite samples tested emitted no radon or very little radon. CRS Marble and Granite.
Virginia Beach Countertops of areas the largest importer fabricator and installer of premium and exotic granite countertops serving Richmond Norfolk Chesapeake Newport News Virginia Beach areas. If you have granite countertops in your home you might consider testing them for the amounts of radon gas they give off experts say due to the potential that those amounts are above levels. WE HAVE 150 COLORS 2000 SLABS IN STOCK.
The story here appears to be that some granite countertops have been found to emit high levels of radon a strongly carcinogenic natural radioactive element.
A 10 by 15 bathroom with an 01 ACH rate and 200 ft2 of granite tile that emanates at a rate of 10 pCift2hr will have 2000 pCi per hour moving into an air exchange rate of 10 X 15 X 8 X 28 X 01 or 3360 liters per hour. Radon is an odorless colorless gas produced by the breakdown of uranium that seeps out of the earth more commonly in some places on the planet than others. Contact your state radon office wwwepagovradonfind-information-about-local-radon-zones-and-state-contact. From kitchen countertops to backyard steps and patios no evidence shows that granite building products are unsafe.