Stay updated with real-time air quality in St. Joseph, Missouri 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)
52
Moderate
St. Joseph, Missouri
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
10.39 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
58.21 μg/m³
0
55
155
255
425
605+
26.25 ppb
0
55
71
86
201
201+
0.89 ppb
0
36
76
186
605
1005+
8.01 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
St. Joseph, Missouri
St. Joseph, Missouri
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AQI 27
Good
5.18μg/m³
PM2.5
21.18μg/m³
PM10
25.82ppb
O3
1.54ppb
SO2
13.76ppb
NO2
0.26ppm
CO
AQI 27
Good
5.33μg/m³
PM2.5
21.46μg/m³
PM10
26.47ppb
O3
1.98ppb
SO2
16.15ppb
NO2
0.31ppm
CO
AQI 27
Good
5.15μg/m³
PM2.5
18.75μg/m³
PM10
25.79ppb
O3
1.76ppb
SO2
15.84ppb
NO2
0.30ppm
CO
AQI 27
Good
5.23μg/m³
PM2.5
21.13μg/m³
PM10
24.01ppb
O3
1.85ppb
SO2
16.11ppb
NO2
0.30ppm
CO
AQI 27
Good
5.37μg/m³
PM2.5
22.65μg/m³
PM10
24.20ppb
O3
1.94ppb
SO2
16.16ppb
NO2
0.31ppm
CO
AQI 38
Good
6.66μg/m³
PM2.5
27.92μg/m³
PM10
25.43ppb
O3
1.18ppb
SO2
13.48ppb
NO2
0.20ppm
CO
Air quality and pollutant data for Missouri, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for St. Joseph, Missouri is updated every hour for accuracy.
In the past 24 hours, the air quality in St. Joseph, Missouri was at its worst at 08:00:00 on 2025-10-22.
In the last 24 hours, the best air quality in St. Joseph, Missouri was observed at 01:00:00 on 2025-10-21.
As of now, the AQI in St. Joseph, Missouri is 52, indicating Moderate conditions.
St. Joseph, Missouri air has the highest levels of PM10.
Poor air quality in St. Joseph, Missouri means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in St. Joseph, Missouri are currently 10.395 μg/m3.
The PM10 concentration in St. Joseph, Missouri is 58.214 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in St. Joseph, Missouri is 0.145 ppm.
Currently, St. Joseph, Missouri has a sulfur dioxide (SO2) concentration of 0.886 ppb.
The current ozone (O3) level in St. Joseph, Missouri at the moment is 26.254 ppm.
Nitrogen dioxide (NO2) level in St. Joseph, Missouri at the moment is 8.006 ppb.
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