panoramic view of chautauqua from the north 


Boulder County works to improve indoor and outdoor air quality through education, monitoring and policy.

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burn permits

Burn Permits

Burn permits are required for open burning of slash in Boulder County. Permits may be denied if a practical alternative method of disposal exists. Learn more about requirements for spring, summer, fall, and winter, as well as alternatives to open burning.

Wood Burning Impacts & Alternatives

Wood Burning Impacts & Alternatives

When wood burns, it gives off a variety of pollutants that can be harmful to your health. In fact, wood burned in a conventional fireplace gives off many pollutants, including over 100 hazardous chemicals that are toxic and carcinogenic (cancer-causing).



Mold (or mildew) is the common name for fungi in the indoor environment, although molds are found everywhere in both the indoor and outdoor environment. Learn more about the health effects, prevention, and how to fix the problem.