Do granite countertops give off radon gas?
It is possible for any granite sample to contain varying concentrations of uranium and other naturally occurring radioactive elements. These elements can emit radiation and produce radon gas, a source of alpha and beta particles and gamma rays (see www.epa.gov/radiation/radiation-terms-and-units).
How much radon does a granite countertop emit?
The Reality: 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 air.
Which granite has the most uranium?
radon
All types of granite contain various amounts of uranium, an element that produces radon gas. Granites that emit the most radon are the ones that contain the most uranium.
Is radon found in granite?
Granite, like any other stone, may contain veins of naturally occurring radioactive elements like uranium, thorium, and their radioactive decay products. Radon released from granite building materials can be released over the lifetime of use but typically will be diluted by ventilation.
Is granite bad for your health?
Radioactive minerals in the granite can decay into radon – a colorless, odorless, radioactive gas – which may be released from the surface of the granite over time. However, high levels of radon in the home (from all possible sources) is a health concern because it can cause lung cancer.
Does marble emit radon?
None added any radon to the air. Limestone, soapstone, and marble countertops do not pose a radon concern, according to Kitto. If you have granite countertops and want to test them for radon, place a short-term home radon test kit near the granite and another kit in the basement or lowest usable level of the home.
Is radon in granite?
Does marble release radon gas?