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)
33
Good
Marshall, Minnesota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.96 μg/m³
0
55
155
255
425
605+
14.02 ppb
0
55
71
86
201
201+
0.73 ppb
0
36
76
186
605
1005+
2.63 ppb
0
54
101
361
1250
2050+
0.38 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Marshall, Minnesota
Marshall, Minnesota
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AQI 16
Good
0.72μg/m³
PM2.5
3.05μg/m³
PM10
17.03ppb
O3
0.71ppb
SO2
2.07ppb
NO2
0.35ppm
CO
AQI 33
Good
6.43μg/m³
PM2.5
28.83μg/m³
PM10
29.50ppb
O3
0.21ppb
SO2
3.56ppb
NO2
0.15ppm
CO
AQI 33
Good
6.24μg/m³
PM2.5
27.92μg/m³
PM10
27.92ppb
O3
0.17ppb
SO2
3.04ppb
NO2
0.15ppm
CO
AQI 33
Good
5.51μg/m³
PM2.5
23.50μg/m³
PM10
17.55ppb
O3
0.74ppb
SO2
2.84ppb
NO2
0.43ppm
CO
AQI 20
Good
1.62μg/m³
PM2.5
6.38μg/m³
PM10
22.07ppb
O3
0.79ppb
SO2
2.74ppb
NO2
0.32ppm
CO
AQI 19
Good
1.70μg/m³
PM2.5
6.00μg/m³
PM10
20.00ppb
O3
0.73ppb
SO2
2.01ppb
NO2
0.36ppm
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 05:00:00 on 2026-09-06.
The best air quality in Marshall, Minnesota was recorded at 04:00:00 on 2026-09-07.
The real-time air quality index in Marshall, Minnesota is 33, 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 5.786 μg/m3.
The current PM10 levels in Marshall, Minnesota are 16.962 μg/m3.
The current carbon monoxide (CO) level in Marshall, Minnesota is 0.379 ppm.
The current sulfur dioxide (SO2) levels in Marshall, Minnesota are 0.73 ppb.
The current ozone (O3) levels at Marshall, Minnesota is 14.015 ppm.
The current nitrogen dioxide (NO2) levels at Marshall, Minnesota is 2.626 ppb.
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