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)
38
Good
Marshall, Minnesota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.03 μg/m³
0
55
155
255
425
605+
39.99 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
3.70 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Marshall, Minnesota
Marshall, Minnesota
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AQI 34
Good
4.64μg/m³
PM2.5
20.32μg/m³
PM10
36.99ppb
O3
0.64ppb
SO2
3.44ppb
NO2
0.28ppm
CO
AQI 56
Moderate
11.62μg/m³
PM2.5
52.20μg/m³
PM10
33.36ppb
O3
0.08ppb
SO2
0.46ppb
NO2
0.16ppm
CO
AQI 52
Moderate
9.60μg/m³
PM2.5
43.00μg/m³
PM10
33.65ppb
O3
0.10ppb
SO2
0.43ppb
NO2
0.12ppm
CO
AQI 38
Good
7.20μg/m³
PM2.5
32.27μg/m³
PM10
38.76ppb
O3
0.72ppb
SO2
4.03ppb
NO2
0.29ppm
CO
AQI 38
Good
6.67μg/m³
PM2.5
35.17μg/m³
PM10
37.79ppb
O3
0.57ppb
SO2
4.63ppb
NO2
0.28ppm
CO
AQI 63
Moderate
9.90μg/m³
PM2.5
78.99μg/m³
PM10
35.00ppb
O3
0.69ppb
SO2
3.28ppb
NO2
0.28ppm
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 2026-07-23.
The best air quality in Marshall, Minnesota was recorded at 02:00:00 on 2026-07-23.
The real-time air quality index in Marshall, Minnesota is 38, 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 6.7 μg/m3.
The current PM10 levels in Marshall, Minnesota are 27.032 μg/m3.
The current carbon monoxide (CO) level in Marshall, Minnesota is 0.283 ppm.
The current sulfur dioxide (SO2) levels in Marshall, Minnesota are 0.672 ppb.
The current ozone (O3) levels at Marshall, Minnesota is 39.992 ppm.
The current nitrogen dioxide (NO2) levels at Marshall, Minnesota is 3.699 ppb.
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