What is the air quality like in St. Paul?
St. Paul has an average AQI of 42, which falls in the "Good" category. About 68% of days have Good air quality, 26% are Moderate, and 5% are Unhealthy for Sensitive Groups. The primary pollutant is PM2.5.
What is the main pollutant in St. Paul?
The primary pollutant in St. Paul is PM2.5. The city's average PM2.5 level is 7 μg/m³ (below the EPA annual standard of 12 μg/m³). Average ozone levels are 36 ppb. Major pollution sources include vehicles, heating, refinery.
Is St. Paul affected by wildfire smoke?
St. Paul has a low wildfire risk rating. Wildfire smoke rarely impacts air quality here.
How many good air quality days does St. Paul have?
Approximately 68% of days in St. Paul have Good air quality (AQI 0-50). This means the majority of the year has clean, breathable air.
When is pollen season in St. Paul's state (MN)?
Pollen seasons in MN include: Tree Pollen (April–June, Moderate severity); Weed Pollen (August–September, High severity); Mold Spores (June–October, Moderate severity); Grass Pollen (May–July, 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.