What is the air quality like in Concord?
Concord has an average AQI of 52, which falls in the "Moderate" category. About 56% of days have Good air quality, 34% are Moderate, and 8% are Unhealthy for Sensitive Groups. The primary pollutant is Ozone.
What is the main pollutant in Concord?
The primary pollutant in Concord is Ozone. The city's average PM2.5 level is 9 μg/m³ (below the EPA annual standard of 12 μg/m³). Average ozone levels are 44 ppb. Major pollution sources include vehicles, former naval weapons station.
Is Concord affected by wildfire smoke?
Concord has a moderate wildfire risk rating. Occasional wildfire smoke events may temporarily degrade air quality.
How many good air quality days does Concord have?
Approximately 56% of days in Concord have Good air quality (AQI 0-50). Residents experience Good air quality about half the time, with other days being Moderate or worse.
When is pollen season in Concord'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.