radon in basements 2

https://getzone1radonareaworks.focalledger.com/posts/new-guidance-clarifies-risks-in-zone-1-radon-area-for-home-buyers

Radon in basements is a serious concern because it's a radioactive gas that seeps up from the ground through cracks and openings. You can't see, smell, or taste it, but prolonged exposure can increase lung cancer risk. Testing is the only way to know your levels, and mitigation systems can help keep your home safe.