What is the air quality like in Fremont?
Fremont has an average AQI of 50, which falls in the "Good" category. About 60% of days have Good air quality, 30% are Moderate, and 8% are Unhealthy for Sensitive Groups. The primary pollutant is Ozone.
What is the main pollutant in Fremont?
The primary pollutant in Fremont is Ozone. 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 42 ppb. Major pollution sources include vehicles, tesla factory, highway.
Is Fremont affected by wildfire smoke?
Fremont has a moderate wildfire risk rating. Occasional wildfire smoke events may temporarily degrade air quality.
How many good air quality days does Fremont have?
Approximately 60% of days in Fremont have Good air quality (AQI 0-50). This means the majority of the year has clean, breathable air.
When is pollen season in Fremont'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.