Bad Air Days in Pine County, Minnesota
Not enough data
EPA monitors in Pine County ran on too few days between 2016 and 2025 to give a fair yearly count (about 19% of days covered). Neighbouring counties below are a better guide.
What actually helps here
- EPA monitors here ran too few days to give a fair yearly count. Use AirNow for today's air.
The worst days on file
| Date | AQI | Main pollutant |
|---|---|---|
| 2025-12-02 | 61 | PM2.5 |
| 2025-12-09 | 56 | PM2.5 |
| 2025-12-12 | 53 | PM2.5 |
| 2025-12-23 | 53 | PM2.5 |
| 2025-12-05 | 49 | PM2.5 |
An ordinary day in Pine
Across 69 monitored days from 2025 to 2025, the air in Pine County rated Good on 94% of them, more often than the 72% typical of monitored counties, and Moderate on 6%. The median day sat at AQI 23; one day in ten went above 45.
The pollutant setting the AQI on an ordinary day here:
- fine particles (PM2.5)100%69 days
Pine County by year
| Year | Days monitored | Good | Moderate | Over 100 | Over 150 | Median AQI | Highest AQI |
|---|---|---|---|---|---|---|---|
| 2025* | 69 | 65 | 4 | 0 | 0 | 23 | 61 |
*2025 may be a partial year in EPA's file.
Minnesota compared
- Blue Earth County10/yr
- Saint Louis County5/yr
- Wright County5/yr
- Cass County4/yr
- Beltrami County4/yr
- Hennepin County4/yr
- Anoka County4/yr
- Becker County4/yr
How this is counted
A bad air day is a day the county's daily AQI from EPA AirData went above 100, the level where EPA tells children, older adults and people with asthma or heart disease to cut back outdoors. Monitors do not run every day, so yearly counts are scaled to 365 days. This is the record, not today's air: for that, check AirNow. More on the method in how the county numbers are made, on the AQI 100 line in what counts as a bad air day.