“We spend approximately 90 percent of our lives inside the built environment, so your indoor environment impacts your ...

By Lisa Song This story was originally published by ProPublica. ProPublica is a Pulitzer Prize-winning investigative newsroom ...

Alabama's free radon test kits have proven to be a hot commodity, with 1,400 requests in a single day, leading to a temporary ...

Radioactive materials are found naturally in the Earth. But even so, saying an area is radioactive can conjure up images of ...