mitigation for high radon

https://radonmitigationcostyorkfacts.talesignal.com/posts/radon-mitigation-cost-york-homeowners-face-as-testing-season-arrives

High radon levels in your home can be mitigated by sealing cracks in floors and walls, improving ventilation, and installing a sub-slab depressurization system that draws radon from beneath the foundation and vents it outside. Testing after mitigation confirms effectiveness, and periodic retesting ensures levels stay low.