PA DEP radon standards 3

https://radonmitigationnewbuildsinfo.laurelcurrent.com/posts/why-radon-mitigation-for-new-builds-is-a-smart-investment-in-york-county

The PA DEP radon standards set action levels for radon gas in Pennsylvania homes, requiring mitigation at 4 pCi/L or higher. They guide testing and remediation to reduce lung cancer risks from this naturally occurring radioactive gas. Homeowners can access certified test kits and professional mitigators through the state's program.