What is the air quality like in Corona?
Corona has an average AQI of 76, which falls in the "Moderate" category. About 34% of days have Good air quality, 42% are Moderate, and 18% are Unhealthy for Sensitive Groups. The primary pollutant is Ozone.
What is the main pollutant in Corona?
The primary pollutant in Corona is Ozone. The city's average PM2.5 level is 13 μg/m³ (above the EPA annual standard of 12 μg/m³). Average ozone levels are 56 ppb. Major pollution sources include vehicles, i-15/sr-91, warehousing.
Is Corona affected by wildfire smoke?
Corona 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 Corona have?
Approximately 34% of days in Corona 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 Corona'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.