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)
56
Moderate
Creve Coeur, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
53.39 μg/m³
0
55
155
255
425
605+
14.31 ppb
0
55
71
86
201
201+
0.91 ppb
0
36
76
186
605
1005+
11.45 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Creve Coeur, Missouri
Creve Coeur, Missouri
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AQI 58
Moderate
12.61μg/m³
PM2.5
55.87μg/m³
PM10
14.65ppb
O3
0.87ppb
SO2
11.66ppb
NO2
0.29ppm
CO
AQI 56
Moderate
11.63μg/m³
PM2.5
51.82μg/m³
PM10
14.42ppb
O3
0.90ppb
SO2
11.70ppb
NO2
0.29ppm
CO
AQI 56
Moderate
12.48μg/m³
PM2.5
52.44μg/m³
PM10
14.71ppb
O3
0.93ppb
SO2
11.29ppb
NO2
0.30ppm
CO
AQI 58
Moderate
12.81μg/m³
PM2.5
54.62μg/m³
PM10
14.68ppb
O3
0.94ppb
SO2
11.39ppb
NO2
0.30ppm
CO
AQI 58
Moderate
12.65μg/m³
PM2.5
53.37μg/m³
PM10
14.82ppb
O3
0.91ppb
SO2
11.41ppb
NO2
0.29ppm
CO
AQI 54
Moderate
11.00μg/m³
PM2.5
49.03μg/m³
PM10
14.38ppb
O3
0.90ppb
SO2
11.78ppb
NO2
0.29ppm
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 07:00:00, 2025-12-07.
The best air quality in Creve Coeur, Missouri was observed at 02:00:00 on 2025-12-07.
The air quality in Creve Coeur, Missouri right now is Moderate, with an AQI of 56.
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 11.999 μg/m3.
Creve Coeur, Missouri currently has a PM10 concentration of 53.391 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 0.91 ppb.
Creve Coeur, Missouri currently has an ozone (O3) concentration of 14.315 ppm.
The current level of nitrogen dioxide (NO2) in Creve Coeur, Missouri is 11.452 ppb.
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