What is the air quality like in San Bernardino?
San Bernardino 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 Ozone.
What is the main pollutant in San Bernardino?
The primary pollutant in San Bernardino is Ozone. The city's average PM2.5 level is 15.5 μg/m³ (above the EPA annual standard of 12 μg/m³). Average ozone levels are 58 ppb. Major pollution sources include vehicles, rail yards, warehouses, wildfires.
Is San Bernardino affected by wildfire smoke?
San Bernardino 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 San Bernardino have?
Approximately 26% of days in San Bernardino 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 San Bernardino'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.