What is the air quality like in Fontana?
Fontana has an average AQI of 82, which falls in the "Moderate" category. About 26% of days have Good air quality, 42% are Moderate, and 22% are Unhealthy for Sensitive Groups. The primary pollutant is PM2.5.
What is the main pollutant in Fontana?
The primary pollutant in Fontana is PM2.5. The city's average PM2.5 level is 15 μg/m³ (above the EPA annual standard of 12 μg/m³). Average ozone levels are 58 ppb. Major pollution sources include warehouses, trucks, vehicles.
Is Fontana affected by wildfire smoke?
Fontana 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 Fontana have?
Approximately 26% of days in Fontana have Good air quality (AQI 0-50). This is below the national average, meaning residents frequently experience reduced air quality.
When is pollen season in Fontana'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.