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)
49
Good
Creve Coeur, Missouri
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.33 μg/m³
0
55
155
255
425
605+
28.14 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
2.60 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Creve Coeur, Missouri
Creve Coeur, Missouri
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AQI 62
Moderate
14.68μg/m³
PM2.5
58.00μg/m³
PM10
17.22ppb
O3
0.61ppb
SO2
4.32ppb
NO2
0.23ppm
CO
AQI 62
Moderate
14.59μg/m³
PM2.5
56.63μg/m³
PM10
15.76ppb
O3
0.56ppb
SO2
4.26ppb
NO2
0.23ppm
CO
AQI 60
Moderate
14.17μg/m³
PM2.5
60.38μg/m³
PM10
15.64ppb
O3
0.51ppb
SO2
4.33ppb
NO2
0.23ppm
CO
AQI 60
Moderate
13.79μg/m³
PM2.5
61.22μg/m³
PM10
15.00ppb
O3
0.46ppb
SO2
4.36ppb
NO2
0.23ppm
CO
AQI 62
Moderate
14.51μg/m³
PM2.5
58.80μg/m³
PM10
16.59ppb
O3
0.58ppb
SO2
4.29ppb
NO2
0.23ppm
CO
AQI 60
Moderate
14.48μg/m³
PM2.5
53.26μg/m³
PM10
14.98ppb
O3
0.53ppb
SO2
4.25ppb
NO2
0.23ppm
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, 2025-09-05.
The best air quality in Creve Coeur, Missouri was observed at 05:00:00 on 2025-09-05.
The air quality in Creve Coeur, Missouri right now is Good, with an AQI of 49.
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 9.076 μg/m3.
Creve Coeur, Missouri currently has a PM10 concentration of 41.329 μg/m3.
The current carbon monoxide (CO) level in Creve Coeur, Missouri is 0.296 ppm.
The current sulfur dioxide (SO2) concentration in Creve Coeur, Missouri is 0.235 ppb.
Creve Coeur, Missouri currently has an ozone (O3) concentration of 28.135 ppm.
The current level of nitrogen dioxide (NO2) in Creve Coeur, Missouri is 2.598 ppb.
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