Radon Measurement Technician License # MET 13430 
Exposure to radon gas, which can seep through cracks in the walls and floors of your home, increases the risk of developing lung cancer and people who smoke or used to smoke have an even greater chance of developing lung cancer if they are exposed to radon.
Radon is a radioactive gas that has been found in homes all over the United States. It comes from the natural breakdown of uranium in soil, rock, and water and gets into the air you breathe. Radon typically moves up through the ground to the air above and into your home through cracks and other holes in the foundation.