What is the air quality like in Merced?
Merced has an average AQI of 84, which falls in the "Moderate" category. About 24% of days have Good air quality, 38% are Moderate, and 24% are Unhealthy for Sensitive Groups. The primary pollutant is PM2.5.
What is the main pollutant in Merced?
The primary pollutant in Merced is PM2.5. The city's average PM2.5 level is 16 μg/m³ (above the EPA annual standard of 12 μg/m³). Average ozone levels are 58 ppb. Major pollution sources include agriculture, uc merced, vehicles.
Is Merced affected by wildfire smoke?
Merced has a very high wildfire risk rating. Wildfire smoke frequently degrades air quality, sometimes pushing AQI into unhealthy ranges for extended periods.
How many good air quality days does Merced have?
Approximately 24% of days in Merced 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 Merced'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.