Students invited to enter 2021 National Radon Poster Contest


Colorado Department of Health

and Environment

The 2021 National Radon Poster Contest is now open, giving Colorado students ages 9 to 14 a chance to educate communities about indoor radon risks, win cash prizes and have their artwork distributed across the state or country.

The contest is designed to raise awareness about the importance of radon testing and to inform people of the dangers of radon in their homes. Posters are first entered into the Colorado contest, with the winning poster representing Colorado in the national contest. 

Students enrolled in a public, private, territorial, tribal, Department of Defense or home school are eligible to submit entries. Members of a sponsoring club, such as a scouting organization or an art, computer, science or 4-H club, also are eligible. Posters must be submitted by Nov. 20 and only one entry per student (ages 9 to 14) is allowed. Poster contest submission forms, topics, rules and prizes may be found online at

Colorado entries will be judged based on content accuracy, visual communication of the topic, reproducibility and originality. State winners are awarded $300 for first place, $200 for second and $100 for third. Teachers of students with winning entries will each receive $100. 

The Colorado Department of Public Health and Environment, in partnership with the Conference of Radiation Control Program Directors and the U.S. Environmental Protection Agency (EPA), coordinates the contest each year.

Radon is a naturally occurring radioactive gas responsible for hundreds of Colorado lung cancer deaths each year. The colorless, odorless, tasteless gas can enter homes through cracks in the foundation or other openings and can accumulate unless properly mitigated. Long-term radon exposure is the leading cause of lung cancer in nonsmokers and the second-leading cause of lung cancer in smokers. In Colorado, about half the homes have radon levels higher than the EPA’s recommended action level of 4 picoCuries per liter of indoor air. 

More information about radon, discount test kits and radon contractors is available at or by calling Colorado’s Radon Hotline at (800) 846-3986. For additional contest information, please visit the website or contact Chrystine Kelley at