Denver, Front Range sees worst air pollution in 10 years, 40 ozone days

Cars head westbound along Interstate 70 between Central Park Boulevard and Quebec Street on August 18, 2022, in Denver. (Photo by Helen H. Richardson/The Denver Post)

By Noelle Phillips | nphillips@denverpost.com | The Denver Post

PUBLISHED: September 25, 2024 at 6:00 AM MDT | UPDATED: September 25, 2024 at 6:03 AM MDT

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Metro Denver and the northern Front Range just experienced one of the worst ozone pollution seasons in 10 years, with 40 days when air quality measurements exceeded federal standards.

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