York County radon levels 3

https://mypostmitigationradontestnews.urbanvellum.com/posts/why-a-post-mitigation-radon-test-is-essential-for-home-safety

York County radon levels are a real concern for homeowners, as the area's geology can let this odorless gas seep into basements and crawl spaces. Many homes, especially those built over granite or shale, test above the EPA action level of 4 pCi/L. Testing is straightforward with a simple kit, and mitigation systems can reduce levels significantly. It's worth checking your home every few years, especially after renovations or changes to your foundation.