What is the air quality like in Santa Rosa?
Santa Rosa has an average AQI of 48, which falls in the "Good" category. About 62% of days have Good air quality, 28% are Moderate, and 8% are Unhealthy for Sensitive Groups. The primary pollutant is PM2.5.
What is the main pollutant in Santa Rosa?
The primary pollutant in Santa Rosa is PM2.5. The city's average PM2.5 level is 8.5 μg/m³ (below the EPA annual standard of 12 μg/m³). Average ozone levels are 36 ppb. Major pollution sources include vehicles, wildfires.
Is Santa Rosa affected by wildfire smoke?
Santa Rosa has a very high wildfire risk rating. Wildfire smoke frequently degrades air quality, sometimes pushing AQI into unhealthy ranges for extended periods.
How many good air quality days does Santa Rosa have?
Approximately 62% of days in Santa Rosa have Good air quality (AQI 0-50). This means the majority of the year has clean, breathable air.
When is pollen season in Santa Rosa's state (CA)?
Pollen seasons in CA include: Grass Pollen (April–July, High severity); Tree Pollen (February–May, High severity); Weed Pollen (July–November, Moderate severity); Mold Spores (Year-round–Year-round, 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.