What is the air quality like in Boulder?
Boulder has an average AQI of 46, which falls in the "Good" category. About 64% of days have Good air quality, 28% are Moderate, and 7% are Unhealthy for Sensitive Groups. The primary pollutant is Ozone.
What is the main pollutant in Boulder?
The primary pollutant in Boulder is Ozone. The city's average PM2.5 level is 7.8 μg/m³ (below the EPA annual standard of 12 μg/m³). Average ozone levels are 46 ppb. Major pollution sources include vehicles, wildfire smoke.
Is Boulder affected by wildfire smoke?
Boulder has a high wildfire risk rating. Wildfire smoke regularly impacts air quality, especially during summer and fall fire seasons.
How many good air quality days does Boulder have?
Approximately 64% of days in Boulder have Good air quality (AQI 0-50). This means the majority of the year has clean, breathable air.
When is pollen season in Boulder's state (CO)?
Pollen seasons in CO include: Weed Pollen (July–October, High severity); Mold Spores (June–September, Low severity); Tree Pollen (March–June, Moderate severity); Grass Pollen (May–July, Moderate severity). Allergy sufferers should monitor pollen counts during these periods and consider staying indoors on high-pollen days, especially during morning hours when counts peak.