It is common practice to recommend Granite for kitchen counter tops during a New Look Kitchen Renovation. Why? because it is natural, durable, resists heat and scratches. What I recently discovered through several studies online, is that Granite emits Radon, a naturally-occurring radioactive gas usually found in soil and rocks. As trace uranium in soil and rock decays, it emits radon, which is a leading cause of lung cancer.
According to the Environmental Compliance Handbook (Jacob I. Bregman and Robert D. Bell), a person exposed to radon levels measured at 4 pCi/L or higher has the same risk of developing lung cancer as a person who smokes five cigarettes per day.