Radon is a colorless, tasteless and odorless gas that can cause lung cancer. According to the University of Georgia College of Family and Consumer Sciences, radon is the second leading cause of lung cancer in the U.S., after tobacco. Radon is formed when uranium breaks down into radium, which breaks down into radon. Radon is absorbed by the soil and can enter homes through the foundation and well water systems. The map below shows the percentage of homes tested with radon levels 4.0 pCi/L and above. The data is from homes which volunteered to test their homes for radon.
Click on the link here to view more information about radon, radon testing and radon levels in Georgia.