What is the air quality like in Pasadena?
Pasadena has an average AQI of 68, which falls in the "Moderate" category. About 40% of days have Good air quality, 40% are Moderate, and 15% are Unhealthy for Sensitive Groups. The primary pollutant is Ozone.
What is the main pollutant in Pasadena?
The primary pollutant in Pasadena is Ozone. The city's average PM2.5 level is 12 μg/m³ (below the EPA annual standard of 12 μg/m³). Average ozone levels are 54 ppb. Major pollution sources include vehicles, i-210 corridor, la basin.
Is Pasadena affected by wildfire smoke?
Pasadena has a moderate wildfire risk rating. Occasional wildfire smoke events may temporarily degrade air quality.
How many good air quality days does Pasadena have?
Approximately 40% of days in Pasadena 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 Pasadena'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.