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Tri-County Health Department News

Posted on: December 27, 2018

Test for Radon and Remove It from Your Home during National Radon Action Month

More than 50 percent of Colorado homes have high levels of radon. Radon is a radioactive gas that occurs naturally in the environment and is the second leading cause of lung cancer behind cigarette smoking.

Radon is a colorless, odorless and tasteless gas so you may not know if it is in your home. Although there is no safe level of radon, it is easy to test for and reduce radon levels with a radon mitigation system. This January, test your home for National Radon Action Month.

Colorado residents are eligible for a discounted radon home test-kit. Request a kit here and it will be mailed to your home. If your test indicates high levels of radon in your home, and you are income eligible, you could receive a free in-home radon mitigation system. Check your eligibility with the Low Income Radon Mitigation Program or with the City of Aurora Radon Mitigation Program.

If you are not eligible for these programs, we recommend using a mitigation professional to help remove the radon from your home. The EPA and Surgeon General recommend mitigation in homes that have levels at or above 4pCi/L. Should testing results indicate radon levels below 4pCi/L, the Colorado Department of Public Health and Environment recommends retesting every two to three years to be sure the levels have not increased. The average price of a radon mitigation system in Colorado is $800 to $1,200.

In Colorado, approximately 500 people die annually from radon-induced lung cancer. Between 2005 – 2017, more than 54 percent of household radon tests were above the recommended EPA action limit of four pCi/L in Adams and Arapahoe Counties. In Douglas County, that rate was nearly 56 percent during the same timeframe.

Take action this January and test your home to protect your family from radon.

For more information about radon, visit or email


 Tri-County Health Department serves over 1.5 million people in Adams, Arapahoe and Douglas Counties. It provides over 60 programs and services including birth certificates, immunizations, food/WIC, restaurant inspections, family planning, STI/HIV Testing and infectious disease investigations. For more information, please visit or follow us on Twitter @TCHDHealth or Facebook @cotchd

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