Stay updated with real-time air quality in Marshall, 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)
23
Good
Marshall, Minnesota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.81 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
5.02 μg/m³
0
55
155
255
425
605+
25.46 ppb
0
55
71
86
201
201+
0.97 ppb
0
36
76
186
605
1005+
6.26 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Marshall, Minnesota
Marshall, Minnesota
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AQI 38
Good
6.67μg/m³
PM2.5
9.98μg/m³
PM10
29.98ppb
O3
1.08ppb
SO2
6.72ppb
NO2
0.20ppm
CO
AQI 22
Good
4.50μg/m³
PM2.5
19.88μg/m³
PM10
15.45ppb
O3
0.06ppb
SO2
1.64ppb
NO2
0.17ppm
CO
AQI 16
Good
2.29μg/m³
PM2.5
9.19μg/m³
PM10
16.63ppb
O3
0.04ppb
SO2
1.73ppb
NO2
0.16ppm
CO
AQI 24
Good
3.70μg/m³
PM2.5
12.69μg/m³
PM10
25.60ppb
O3
0.81ppb
SO2
5.38ppb
NO2
0.19ppm
CO
AQI 28
Good
1.75μg/m³
PM2.5
11.75μg/m³
PM10
29.68ppb
O3
1.08ppb
SO2
5.36ppb
NO2
0.19ppm
CO
AQI 22
Good
3.53μg/m³
PM2.5
16.01μg/m³
PM10
13.71ppb
O3
0.10ppb
SO2
1.99ppb
NO2
0.17ppm
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 Marshall, Minnesota is updated on an hourly basis.
The worst air quality in Marshall, Minnesota was recorded at 02:00:00 on 2025-12-06.
The best air quality in Marshall, Minnesota was recorded at 07:00:00 on 2025-12-07.
The real-time air quality index in Marshall, Minnesota is 23, currently categorized as Good.
The most common pollutant in Marshall, Minnesota is O3.
If the air quality in Marshall, Minnesota is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Marshall, Minnesota at present are 2.805 μg/m3.
The current PM10 levels in Marshall, Minnesota are 5.021 μg/m3.
The current carbon monoxide (CO) level in Marshall, Minnesota is 0.184 ppm.
The current sulfur dioxide (SO2) levels in Marshall, Minnesota are 0.966 ppb.
The current ozone (O3) levels at Marshall, Minnesota is 25.465 ppm.
The current nitrogen dioxide (NO2) levels at Marshall, Minnesota is 6.265 ppb.
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