Northfield, Minnesota Air Quality
Real-time air quality index (AQI) and pollution data
Population: 20,742 • County: Rice
Current AQI
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 90 Days
Current Pollutant Levels
Real-time data from EPA AirNow
Local Air Quality Context
Air quality data for Northfield is sourced from the Lakeville - Near Road monitoring area, located approximately 18 miles from city center. This EPA-certified station continuously tracks particulate matter (PM2.5), the primary driver of air quality alerts in this area.
Northfield has relatively consistent air quality throughout the year without a strong seasonal peak. Air quality is primarily influenced by local traffic, industrial activity, and regional weather patterns rather than a single seasonal driver.
Frequently Asked Questions About Northfield Air Quality
What is the air quality in Northfield today?
The current AQI in Northfield is 21, rated "Good". Air quality is good — outdoor activity is safe for everyone today. Air quality is satisfactory, and air pollution poses little or no risk.
Air Quality Grade
Better than 0% of US cities
Nearby Cities
Get AQI Alerts
Receive notifications when air quality changes in Northfield
National Rankings
See how Northfield compares to every other US city by air quality.
Most Polluted Cities →All city rankings