Human: Should I be concerned about radon gas in my home? Assistant: 
Radon is a naturally occurring radioactive gas that can build up in homes and other buildings. If you have a radon detector, you should test your home to see if it has elevated levels of radon. You can also hire a professional to conduct a radon test for you. If the level of radon in your home exceeds EPA standards, you may want to take steps to reduce its presence or get rid of it completely.