Radon gas seeps up through soil; outdoors it can escape into the air, but it can enter homes through cracks or porous areas of cement into people’s basements. Click on the map to see radon ...

HARRISBURG, Pa. (CBS) -- It's the No. 2 cause (behind smoking) of lung cancer, and it's a problem in 40% of Pennsylvania homes, yet health leaders say a lot of people aren't aware of radon gas.

HARRISBURG, Pa. (WHTM) – Nearly 4,000 homeowners in Lancaster and York counties will receive letters this month notifying them of high radon levels in their area. The letters from the state ...