Date Published: 01/21/2009 [Source]
Iowa has the highest average radon concentrations in the U.S.
A recent study found nearly 6 in 10 Iowan homes test above the EPA recommended "action level."
Radon is the second-leading cause of lung cancer in the United States
Radon test kits can be purchased for $10 to $20 at most hardware and home center stores.