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
5.29 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.01 μg/m³
0
55
155
255
425
605+
23.00 ppb
0
55
71
86
201
201+
0.74 ppb
0
36
76
186
605
1005+
9.25 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marshall, Minnesota
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AQI 20
Good
1.42μg/m³
PM2.5
6.98μg/m³
PM10
22.03ppb
O3
0.78ppb
SO2
7.42ppb
NO2
0.34ppm
CO
AQI 25
Good
3.59μg/m³
PM2.5
15.94μg/m³
PM10
26.84ppb
O3
0.15ppb
SO2
1.50ppb
NO2
0.17ppm
CO
AQI 27
Good
5.29μg/m³
PM2.5
22.92μg/m³
PM10
22.38ppb
O3
0.24ppb
SO2
2.06ppb
NO2
0.20ppm
CO
AQI 38
Good
6.69μg/m³
PM2.5
35.60μg/m³
PM10
21.20ppb
O3
0.57ppb
SO2
12.39ppb
NO2
0.33ppm
CO
AQI 31
Good
2.32μg/m³
PM2.5
5.04μg/m³
PM10
34.03ppb
O3
0.70ppb
SO2
6.90ppb
NO2
0.35ppm
CO
AQI 16
Good
3.10μg/m³
PM2.5
7.00μg/m³
PM10
12.00ppb
O3
0.87ppb
SO2
6.13ppb
NO2
0.34ppm
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 06:00:00 on 2026-03-13.
The best air quality in Marshall, Minnesota was recorded at 09:00:00 on 2026-03-14.
The real-time air quality index in Marshall, Minnesota is 27, 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 5.292 μg/m3.
The current PM10 levels in Marshall, Minnesota are 7.008 μg/m3.
The current carbon monoxide (CO) level in Marshall, Minnesota is 0.339 ppm.
The current sulfur dioxide (SO2) levels in Marshall, Minnesota are 0.74 ppb.
The current ozone (O3) levels at Marshall, Minnesota is 23.003 ppm.
The current nitrogen dioxide (NO2) levels at Marshall, Minnesota is 9.25 ppb.
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