Radon/Fracking Researchers (IMAGE) University of Toledo Caption Dr. Ashok Kumar, left, and Dr. Yanqing Xu at The University of Toledo published a study showing homes located near fracking wells in Ohio are linked to higher indoor radon concentration. Credit Daniel Miller, The University of Toledo Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.