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Granite, as other kinds of rock and soil, contains some naturally occurring radioactive elements usually refers to natural radioactive substances.In most of the amount of radioactivity granite is very small although it is possible to get a large degree of granite counter tops and radiation.Standard is by elements such as thorium uranium potassium, this will help scientists call it background radiation background radiation is a combination of land and cosmic rays people continuously exposed.In Texas, on average each year, down about 300 millirem received from these resources a person will receive about 20 millirem from a traditional chest X-ray.Generally speaking, less than our emissions from regular exposure to these background radiation levels are low, they do not have a harm to human health.Radon is a naturally occurring radioactive gas release in the decay of radioactive elements granite table or infiltration underground uranium deposits, and the houses of the set up to higher than normal.The only known health risk may form radon is lung cancer in addition, smoking union, greatly enhancing the radon exposed to the risk of lung cancer.
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