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)
65
Moderate
Marshall, Minnesota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
84.17 μg/m³
0
55
155
255
425
605+
36.00 ppb
0
55
71
86
201
201+
0.98 ppb
0
36
76
186
605
1005+
1.36 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Marshall, Minnesota
Marshall, Minnesota
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AQI 126
Unhealthy for sensitive groups
15.59μg/m³
PM2.5
204.86μg/m³
PM10
36.96ppb
O3
1.11ppb
SO2
1.35ppb
NO2
0.31ppm
CO
AQI 32
Good
3.29μg/m³
PM2.5
14.17μg/m³
PM10
35.46ppb
O3
0.03ppb
SO2
0.72ppb
NO2
0.14ppm
CO
AQI 34
Good
2.22μg/m³
PM2.5
9.00μg/m³
PM10
37.28ppb
O3
0.05ppb
SO2
0.89ppb
NO2
0.15ppm
CO
AQI 38
Good
7.47μg/m³
PM2.5
41.12μg/m³
PM10
35.56ppb
O3
1.57ppb
SO2
4.25ppb
NO2
0.31ppm
CO
AQI 65
Moderate
6.59μg/m³
PM2.5
83.55μg/m³
PM10
39.55ppb
O3
0.93ppb
SO2
1.27ppb
NO2
0.30ppm
CO
AQI 70
Moderate
5.80μg/m³
PM2.5
93.01μg/m³
PM10
25.00ppb
O3
1.17ppb
SO2
0.90ppb
NO2
0.32ppm
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 12:00:00 on 2026-04-24.
The best air quality in Marshall, Minnesota was recorded at 04:00:00 on 2026-04-23.
The real-time air quality index in Marshall, Minnesota is 65, currently categorized as Moderate.
The most common pollutant in Marshall, Minnesota is PM10.
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 6.51 μg/m3.
The current PM10 levels in Marshall, Minnesota are 84.174 μg/m3.
The current carbon monoxide (CO) level in Marshall, Minnesota is 0.305 ppm.
The current sulfur dioxide (SO2) levels in Marshall, Minnesota are 0.985 ppb.
The current ozone (O3) levels at Marshall, Minnesota is 35.998 ppm.
The current nitrogen dioxide (NO2) levels at Marshall, Minnesota is 1.357 ppb.
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