Fast Facts: Radon

• Over 40 percent of Pennsylvania homes have radon levels above the federal guideline of 4 pCi/L of air.
• Home radon levels can vary in a neighborhood, due primarily to geology and construction characteristics.
• In Pennsylvania, the cost of installing a radon reduction system ranges from about $800 to $1,200.
• After a radon reduction system is installed, another radon test should be performed to make sure the radon levels are brought below 4 pCi/L.
• Pennsylvania has no state law requiring that homes, schools, or other buildings be tested for radon.
• However, DEP recommends all be tested.