“Radon is a health hazard with a simple solution” (epa.gov)
Radon is the second leading cause of lung cancer in the United States,
and the number one cause of lung cancer among nonsmokers.
Radon is an odorless, invisible radioactive gas that forms from the natural breakdown of uranium in soil, rock, and water. Typically, it moves through the ground to the air above and into your home. Radon does not discriminate and can be found in any home regardless of it being old or new. Because of this the EPA and the Surgeon General recommend all homes be tested for radon.
Radon levels can vary from home to home, so remember just because your neighbor’s house was tested with acceptable levels doesn’t mean yours will be.
There is no way to know if radon is present without a test.