Stay updated with real-time air quality in Creve Coeur, 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)
44
Good
Creve Coeur, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.48 μg/m³
0
55
155
255
425
605+
29.96 ppb
0
55
71
86
201
201+
0.98 ppb
0
36
76
186
605
1005+
5.05 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Creve Coeur, Missouri
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AQI 52
Moderate
9.54μg/m³
PM2.5
30.93μg/m³
PM10
29.45ppb
O3
0.92ppb
SO2
5.68ppb
NO2
0.23ppm
CO
AQI 44
Good
8.49μg/m³
PM2.5
30.33μg/m³
PM10
29.29ppb
O3
0.98ppb
SO2
4.95ppb
NO2
0.24ppm
CO
AQI 44
Good
8.16μg/m³
PM2.5
32.03μg/m³
PM10
30.05ppb
O3
0.97ppb
SO2
5.16ppb
NO2
0.24ppm
CO
AQI 44
Good
7.95μg/m³
PM2.5
37.08μg/m³
PM10
30.09ppb
O3
1.00ppb
SO2
4.90ppb
NO2
0.25ppm
CO
AQI 49
Good
8.83μg/m³
PM2.5
31.44μg/m³
PM10
29.93ppb
O3
0.94ppb
SO2
5.54ppb
NO2
0.24ppm
CO
AQI 49
Good
8.53μg/m³
PM2.5
33.30μg/m³
PM10
28.44ppb
O3
1.04ppb
SO2
4.32ppb
NO2
0.24ppm
CO
The air quality data for Missouri, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Creve Coeur, Missouri are available every hour.
Creve Coeur, Missouri experienced its worst air quality at 10:00:00, 2026-03-09.
The best air quality in Creve Coeur, Missouri was observed at 02:00:00 on 2026-03-09.
The air quality in Creve Coeur, Missouri right now is Good, with an AQI of 44.
In Creve Coeur, Missouri, PM2.5 is the most frequently found pollutant.
When air quality in Creve Coeur, Missouri is compromised, staying indoors and wearing a mask can reduce health risks.
Creve Coeur, Missouri currently has a PM2.5 concentration of 8.226 μg/m3.
Creve Coeur, Missouri currently has a PM10 concentration of 33.482 μg/m3.
The current carbon monoxide (CO) level in Creve Coeur, Missouri is 0.245 ppm.
The current sulfur dioxide (SO2) concentration in Creve Coeur, Missouri is 0.981 ppb.
Creve Coeur, Missouri currently has an ozone (O3) concentration of 29.958 ppm.
The current level of nitrogen dioxide (NO2) in Creve Coeur, Missouri is 5.054 ppb.
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