radon in York rowhomes 3

https://thecrawlspaceradonsealingview.opalvector.com/posts/why-crawl-space-radon-sealing-matters-for-york-county-homes

Many of York's older rowhomes were built before radon became a known health concern, so they often lack proper mitigation systems. Testing your basement for this odorless gas is the only way to know if you're at risk, especially since neighboring houses with similar foundations can have very different levels.