Photo of houses in a neighborhood

Radon is the leading cause of lung cancer among non-smokers in the United States and is responsible for approximately 500 lung cancer deaths annually in Colorado. It is a naturally occurring radioactive gas that comes from the breakdown of uranium in the soil that can enter your home from the soil beneath it.


The Colorado Radon Poster and Video Contest is live! Submissions are due November 20, 2023.
Learn more about the poster and video contest

Childs drawing describing how radon underground can cause lung cancer.
2023 Colorado Radon Poster Contest First Place Winner, Elia, Age 11, Stargate Charter School


Thirty-second informational videos on radon