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
7.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.13 μg/m³
0
55
155
255
425
605+
39.87 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
12.36 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Creve Coeur, Missouri
Creve Coeur, Missouri
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AQI 42
Good
5.14μg/m³
PM2.5
22.13μg/m³
PM10
44.69ppb
O3
0.60ppb
SO2
2.52ppb
NO2
0.15ppm
CO
AQI 42
Good
5.28μg/m³
PM2.5
22.92μg/m³
PM10
44.51ppb
O3
0.50ppb
SO2
2.04ppb
NO2
0.14ppm
CO
AQI 41
Good
5.41μg/m³
PM2.5
22.85μg/m³
PM10
43.70ppb
O3
0.59ppb
SO2
2.45ppb
NO2
0.15ppm
CO
AQI 40
Good
5.63μg/m³
PM2.5
23.81μg/m³
PM10
43.25ppb
O3
0.57ppb
SO2
2.31ppb
NO2
0.15ppm
CO
AQI 41
Good
5.29μg/m³
PM2.5
22.89μg/m³
PM10
44.06ppb
O3
0.62ppb
SO2
2.59ppb
NO2
0.15ppm
CO
AQI 41
Good
5.72μg/m³
PM2.5
25.27μg/m³
PM10
44.08ppb
O3
0.47ppb
SO2
1.93ppb
NO2
0.14ppm
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 04:00:00, 2026-04-23.
The best air quality in Creve Coeur, Missouri was observed at 09:00:00 on 2026-04-23.
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 7.576 μg/m3.
Creve Coeur, Missouri currently has a PM10 concentration of 35.129 μg/m3.
The current carbon monoxide (CO) level in Creve Coeur, Missouri is 0.196 ppm.
The current sulfur dioxide (SO2) concentration in Creve Coeur, Missouri is 0.272 ppb.
Creve Coeur, Missouri currently has an ozone (O3) concentration of 39.872 ppm.
The current level of nitrogen dioxide (NO2) in Creve Coeur, Missouri is 12.356 ppb.
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