Radon In Basement Horizon

Why the Basement Matters Most When people talk about radon in basement spaces, they are usually focused on the lowest level of the home. That is where the soil meets the foundation, and where radon gas has the easiest path inside. I have spent years testing homes across Metro East Illinois, and I can tell you that the basement is almost always the primary concern. The reason is simple: radon comes from the ground, so the closer you are to the soil, the higher the potential