Stay updated with real-time air quality in Missouri, USA 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)
37
Good
Missouri, USA
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
5.05 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.25 μg/m³
0
55
155
255
425
605+
39.97 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
2.47 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Missouri, USA
Missouri, USA
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City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
---|
AQI 27
Good
5.13μg/m³
PM2.5
22.25μg/m³
PM10
18.56ppb
O3
0.47ppb
SO2
3.86ppb
NO2
0.19ppm
CO
AQI 22
Good
4.50μg/m³
PM2.5
19.66μg/m³
PM10
23.08ppb
O3
0.43ppb
SO2
9.23ppb
NO2
0.26ppm
CO
AQI 38
Good
7.23μg/m³
PM2.5
30.60μg/m³
PM10
23.07ppb
O3
0.31ppb
SO2
7.02ppb
NO2
0.24ppm
CO
AQI 33
Good
5.77μg/m³
PM2.5
22.17μg/m³
PM10
18.46ppb
O3
0.78ppb
SO2
8.18ppb
NO2
0.28ppm
CO
AQI 22
Good
3.89μg/m³
PM2.5
13.88μg/m³
PM10
21.29ppb
O3
2.46ppb
SO2
6.51ppb
NO2
0.29ppm
CO
AQI 27
Good
5.37μg/m³
PM2.5
22.46μg/m³
PM10
17.93ppb
O3
2.13ppb
SO2
12.54ppb
NO2
0.33ppm
CO
Air quality measurements for Missouri, 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 Missouri, USA is updated on an hourly basis.
The worst air quality in Missouri, USA was recorded at 04:00:00 on 2025-07-01.
The best air quality in Missouri, USA was recorded at 12:00:00 on 2025-07-01.
The real-time air quality index in Missouri, USA is 22, currently categorized as Good.
The most common pollutant in Missouri, USA is PM2.5.
If the air quality in Missouri, USA is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Missouri, USA at present are 4.066 μg/m3.
The current PM10 levels in Missouri, USA are 18.525 μg/m3.
The current carbon monoxide (CO) level in Missouri, USA is 0.256 ppm.
The current sulfur dioxide (SO2) levels in Missouri, USA are 0.741 ppb.
The current ozone (O3) levels at Missouri, USA is 21.405 ppm.
The current nitrogen dioxide (NO2) levels at Missouri, USA is 5.806 ppb.
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