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)
27
Good
Marshall, Minnesota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.99 μg/m³
0
55
155
255
425
605+
16.70 ppb
0
55
71
86
201
201+
1.23 ppb
0
36
76
186
605
1005+
8.15 ppb
0
54
101
361
1250
2050+
0.37 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Marshall, Minnesota
Marshall, Minnesota
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AQI 33
Good
5.79μg/m³
PM2.5
8.03μg/m³
PM10
14.97ppb
O3
0.91ppb
SO2
7.55ppb
NO2
0.34ppm
CO
AQI 22
Good
4.24μg/m³
PM2.5
18.57μg/m³
PM10
24.45ppb
O3
0.51ppb
SO2
4.66ppb
NO2
0.16ppm
CO
AQI 27
Good
5.08μg/m³
PM2.5
21.86μg/m³
PM10
12.69ppb
O3
0.27ppb
SO2
6.22ppb
NO2
0.20ppm
CO
AQI 49
Good
4.52μg/m³
PM2.5
53.31μg/m³
PM10
15.19ppb
O3
0.65ppb
SO2
18.63ppb
NO2
0.35ppm
CO
AQI 24
Good
4.45μg/m³
PM2.5
25.86μg/m³
PM10
13.80ppb
O3
0.91ppb
SO2
22.64ppb
NO2
0.33ppm
CO
AQI 49
Good
8.54μg/m³
PM2.5
37.43μg/m³
PM10
13.65ppb
O3
0.42ppb
SO2
2.17ppb
NO2
0.15ppm
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 2025-11-13.
The best air quality in Marshall, Minnesota was recorded at 01:00:00 on 2025-11-12.
The real-time air quality index in Marshall, Minnesota is 22, currently categorized as Good.
The most common pollutant in Marshall, Minnesota is PM2.5.
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 3.804 μg/m3.
The current PM10 levels in Marshall, Minnesota are 10.005 μg/m3.
The current carbon monoxide (CO) level in Marshall, Minnesota is 0.483 ppm.
The current sulfur dioxide (SO2) levels in Marshall, Minnesota are 1.114 ppb.
The current ozone (O3) levels at Marshall, Minnesota is 18.079 ppm.
The current nitrogen dioxide (NO2) levels at Marshall, Minnesota is 7.452 ppb.
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