Stay updated with real-time air quality in Northfield, Minnesota featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
64
Moderate
Northfield, Minnesota
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
15.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
46.61 μg/m³
0
55
155
255
425
605+
25.26 ppb
0
55
71
86
201
201+
1.08 ppb
0
36
76
186
605
1005+
4.25 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Northfield, Minnesota
Northfield, Minnesota
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AQI 16
Good
3.20μg/m³
PM2.5
14.19μg/m³
PM10
9.92ppb
O3
0.91ppb
SO2
8.91ppb
NO2
0.28ppm
CO
AQI 22
Good
4.14μg/m³
PM2.5
18.64μg/m³
PM10
9.34ppb
O3
1.17ppb
SO2
11.35ppb
NO2
0.30ppm
CO
AQI 22
Good
4.37μg/m³
PM2.5
19.27μg/m³
PM10
9.88ppb
O3
1.17ppb
SO2
12.21ppb
NO2
0.30ppm
CO
AQI 22
Good
4.46μg/m³
PM2.5
19.33μg/m³
PM10
9.78ppb
O3
1.20ppb
SO2
11.65ppb
NO2
0.30ppm
CO
AQI 22
Good
4.31μg/m³
PM2.5
18.33μg/m³
PM10
8.93ppb
O3
1.17ppb
SO2
11.38ppb
NO2
0.29ppm
CO
AQI 27
Good
4.69μg/m³
PM2.5
21.36μg/m³
PM10
11.73ppb
O3
1.11ppb
SO2
10.35ppb
NO2
0.29ppm
CO
Air quality measurements for Minnesota, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Northfield, Minnesota is updated on an hourly basis.
The worst air quality in Northfield, Minnesota was recorded at 03:00:00 on 2025-07-18.
The best air quality in Northfield, Minnesota was recorded at 02:00:00 on 2025-07-17.
The real-time air quality index in Northfield, Minnesota is 17, currently categorized as Good.
The most common pollutant in Northfield, Minnesota is PM10.
If the air quality in Northfield, Minnesota is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Northfield, Minnesota at present are 3.374 μg/m3.
The current PM10 levels in Northfield, Minnesota are 17.738 μg/m3.
The current carbon monoxide (CO) level in Northfield, Minnesota is 0.28 ppm.
The current sulfur dioxide (SO2) levels in Northfield, Minnesota are 0.969 ppb.
The current ozone (O3) levels at Northfield, Minnesota is 8.116 ppm.
The current nitrogen dioxide (NO2) levels at Northfield, Minnesota is 8.974 ppb.
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