Radon is a radioactive gas that is colorless, tasteless, and odorless. Radon comes from the breakdown of uranium in soil, rock and water and can enter your home and any type of building through cracks and openings. Your home may trap radon inside, where it can build up to levels that may impact your health as you breathe in air containing radon.

Why Exposure is a Concern

Radon is the second leading cause of lung cancer. Lung cancer deaths caused by radon gas are estimated between 15,000 to 22,000 per year.  Current and former smokers' lungs suffer greater harm from radon.

Madison County is a high radon risk county, with average radon levels above the threshold of concern. 

Not everyone exposed to radon will get lung cancer, but the greater the radon level and the longer the exposure, the greater the risk of developing lung cancer. 

Is Radon a Problem in My Home?

The only way to know if you have high radon levels is to test your home. A radon problem can be fixed.

Free Radon Testing Options

While supplies last:

  • Madison County residents may request a FREE radon detector (test kit). Call 315-366-2526.
  • County residents may also request a FREE Healthy Homes visit that includes radon testing, a home safety check, and supplies.

Click here to learn more about radon, testing, and fixing your home.

Last updated January 25, 2024

Radon Testing Image
Map of percent of homes tested for radon by floor and town with elevated levels, 1987-2018