A new report finds that about 40 percent of homes in Pennsylvania were reported to have levels of radon that were considered above normal levels.
January marks Radon Action Month, and the American Lung Association is urging homeowners to test for radon.
As a colorless, odorless, and tasteless radioactive gas, radon can be hard to detect.
It’s estimated that radon is responsible for an estimated 21,000 deaths annually.