Denver Faces Worst Ozone Pollution in 30 Years
• Metro Denver and the northern Front Range experienced one of the worst ozone pollution seasons in over three decades during the summer of 2026, according to the Regional Air Quality Council. The region recorded 66 days of ozone levels exceeding federal standards, nearly matching the record of 67 days set in
• Contributing factors included record-high temperatures and wildfire smoke, though local sources such as vehicle emissions, industrial pollution, and oil and gas drilling remain the primary culprits. The Environmental Protection Agency (EPA) has already classified the area as in 'severe non-attainment' of federal air quality standards, and further downgrades to 'extreme non-attainment' could occur by mid-
Impact & Risks
The high levels of ground-level ozone pose significant health risks, particularly for vulnerable populations such as individuals with asthma, cardiovascular disease, the elderly, and infants. Over 400,000 people in the Denver metro area suffer from asthma, and another 200,000 have cardiovascular conditions, making them more susceptible to the harmful effects of poor air quality. The health burden is unevenly distributed, with some communities facing greater risks. Additionally, the region's failure to meet federal air quality standards could lead to increased regulatory costs for businesses, including higher fees for industrial polluters.
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