Radon levels in Jefferson County can be higher than the national average, so getting your home tested is a good idea. The gas comes from the ground and can build up inside homes, posing a health risk over time. Many residents have found elevated readings, especially in basements. Simple test kits are available online or at local hardware stores, and fixing the problem often involves sealing cracks or installing a vent system. It's one of those things that's easy to ignore but worth checking out… jefferson county radon 2