November 2026: Public Health Issues Air Quality Advisory for Western Foothills

November 2026: Public Health Issues Air Quality Advisory for Western Foothills

Boulder County Public Health has issued an air quality advisory for communities in the western foothills due to elevated particulate matter levels from prescribed burns in the Roosevelt National Forest. Residents with respiratory conditions are advised to limit outdoor activity and keep windows closed until conditions improve.

Boulder County has partnered with the cities of Boulder, Longmont, Lafayette, and Louisville on this project. Combined investment across all jurisdictions totals $429,000, making it one of the largest collaborative efforts in the county’s history.

Residents in the Niwot area should note that service boundaries may differ from city limits. For properties in unincorporated Boulder County, contact Sustainability, Climate Action & Resilience at (303) 441-2113 to verify eligibility and requirements.

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According to Michael Kowalski, director of Sustainability, Climate Action & Resilience, this program served 43% more residents in 2025 compared to the previous year. “We’re seeing unprecedented demand from communities across Boulder County, particularly in Niwot and the surrounding area,” Michael Kowalski said.

The Bald Mountain open space property encompasses 1,805 acres and features 9 miles of multi-use trails. Seasonal wildlife closures may apply from December 15 through July 15 to protect nesting raptors and elk calving areas.