Radon is behind tobacco the No. 2 environmental factor in causing lung cancer. It’s estimated that radon in homes results in 15,000 to 22,000 deaths a year in the U.S. A disturbing new study from Johns Hopkins University found that radon concentrations in Pennsylvania homes near fracking areas have radon concentrations 39 percent higher … Continue reading Johns Hopkins study: Fracking may be releasing lung cancer-causing radon