Stay updated with real-time air quality in St. Paul, 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)
67
Moderate
St. Paul, Minnesota
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
18.43 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
81.81 μg/m³
0
55
155
255
425
605+
5.80 ppb
0
55
71
86
201
201+
1.50 ppb
0
36
76
186
605
1005+
23.87 ppb
0
54
101
361
1250
2050+
0.58 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
St. Paul, Minnesota
St. Paul, Minnesota
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AQI 19
Good
2.94μg/m³
PM2.5
12.90μg/m³
PM10
21.36ppb
O3
0.53ppb
SO2
4.17ppb
NO2
0.16ppm
CO
AQI 22
Good
2.75μg/m³
PM2.5
11.37μg/m³
PM10
23.62ppb
O3
0.56ppb
SO2
3.91ppb
NO2
0.16ppm
CO
AQI 19
Good
2.85μg/m³
PM2.5
12.32μg/m³
PM10
20.42ppb
O3
0.48ppb
SO2
4.58ppb
NO2
0.18ppm
CO
AQI 20
Good
2.87μg/m³
PM2.5
12.57μg/m³
PM10
22.37ppb
O3
0.57ppb
SO2
3.88ppb
NO2
0.15ppm
CO
AQI 19
Good
2.84μg/m³
PM2.5
12.23μg/m³
PM10
20.50ppb
O3
0.48ppb
SO2
4.58ppb
NO2
0.18ppm
CO
AQI 21
Good
2.79μg/m³
PM2.5
11.69μg/m³
PM10
22.76ppb
O3
0.54ppb
SO2
4.08ppb
NO2
0.16ppm
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 St. Paul, Minnesota is updated on an hourly basis.
The worst air quality in St. Paul, Minnesota was recorded at 07:00:00 on 2025-11-11.
The best air quality in St. Paul, Minnesota was recorded at 12:00:00 on 2025-11-11.
The real-time air quality index in St. Paul, Minnesota is 19, currently categorized as Good.
The most common pollutant in St. Paul, Minnesota is O3.
If the air quality in St. Paul, Minnesota is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in St. Paul, Minnesota at present are 3.088 μg/m3.
The current PM10 levels in St. Paul, Minnesota are 13.913 μg/m3.
The current carbon monoxide (CO) level in St. Paul, Minnesota is 0.158 ppm.
The current sulfur dioxide (SO2) levels in St. Paul, Minnesota are 0.559 ppb.
The current ozone (O3) levels at St. Paul, Minnesota is 21.191 ppm.
The current nitrogen dioxide (NO2) levels at St. Paul, Minnesota is 3.965 ppb.
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