Radon, a deadly, odorless and colorless gas is lurking inside the homes, schools and workplaces of millions of Ohioans. Most residents have no idea. In its "Invisible Killer" investigation, The ...

The Ohio Department of Health is working with lawmakers to potentially increase radon testing in schools. Unlike 11 other states, Ohio does not currently require radon testing in its schools. Many ...

A report obtained by NBC4 Investigates shows very high levels of a cancer-causing gas in a building where the Franklin County Sheriff’s office is moving. It is a move that has been years in the making ...

January is National Radon Action Month, and the American Lung Association is raising awareness of the potential health risks ...