Radon is a colorless, odorless, and tasteless gas that can cause lung cancer. It can be present in any home, including those in Maryland. Gold Key recommends that all homes be tested for radon. If your home has high radon levels (4.0 pCi/L or higher), it can be fixed with a radon mitigation system. The Environmental Protection Agency (EPA) provides more information on radon, its risks, and solutions.