indoor air quality: Is Radon Gas A Concern To Homeowners? - 01/13/17 05:11 AM
Some Facts About Radon Gas: It is estimated that if a non-smoker is exposed to high levels of radon gas over their lifetime, they will have a one in 20 chance of developing lung cancer.
That same indiidual, if a smoker, would have a one in three chance of developing lung cancer. 
The surgeon general has warned that exposure to radon gas is the second leading cause of lung cancer today and is the number one cause of lung cancer among non-smokers.

Radon gas is a radioactive gas that is known to be cancer-causing.
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