Radon Awareness Month continues. Here are the answers to some of the FAQ regarding radon. 1. Radon is a byproduct of uranium decay, which is found in nearly all types of soil. 2. Radon moves up through the ground and finds its way into structures via cracks and other holes in the foundation. Radon is then trapped inside the home, where it builds up over time, increasing radon levels and causing unsafe levels of exposure. 3. Testing should be done with a specialized, continuous radon monitor that is calibrated annually to ensure accurate measurements. 4. Mitigation units can be installed if levels are found to be high. These units can cost from $800-$1,500.