Stay updated with real-time air quality in Crestwood, 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)
30
Good
Crestwood, Missouri
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
1.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.26 μg/m³
0
55
155
255
425
605+
31.93 ppb
0
55
71
86
201
201+
0.39 ppb
0
36
76
186
605
1005+
8.34 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Crestwood, Missouri
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AQI 44
Good
7.53μg/m³
PM2.5
31.94μg/m³
PM10
17.84ppb
O3
0.41ppb
SO2
4.64ppb
NO2
0.27ppm
CO
AQI 44
Good
8.02μg/m³
PM2.5
34.41μg/m³
PM10
16.97ppb
O3
0.44ppb
SO2
4.75ppb
NO2
0.26ppm
CO
AQI 44
Good
7.71μg/m³
PM2.5
33.59μg/m³
PM10
17.92ppb
O3
0.41ppb
SO2
5.29ppb
NO2
0.27ppm
CO
AQI 38
Good
7.21μg/m³
PM2.5
28.52μg/m³
PM10
16.27ppb
O3
0.48ppb
SO2
3.87ppb
NO2
0.26ppm
CO
AQI 44
Good
8.14μg/m³
PM2.5
35.07μg/m³
PM10
16.01ppb
O3
0.45ppb
SO2
4.37ppb
NO2
0.25ppm
CO
AQI 44
Good
8.28μg/m³
PM2.5
36.07μg/m³
PM10
16.07ppb
O3
0.45ppb
SO2
4.47ppb
NO2
0.25ppm
CO
Air quality and pollutant data for Missouri, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Crestwood, Missouri is updated every hour for accuracy.
In the past 24 hours, the air quality in Crestwood, Missouri was at its worst at 02:00:00 on 2025-07-20.
In the last 24 hours, the best air quality in Crestwood, Missouri was observed at 11:00:00 on 2025-07-20.
As of now, the AQI in Crestwood, Missouri is 38, indicating Good conditions.
Crestwood, Missouri air has the highest levels of PM2.5.
Poor air quality in Crestwood, Missouri means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Crestwood, Missouri are currently 6.742 μg/m3.
The PM10 concentration in Crestwood, Missouri is 26.115 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Crestwood, Missouri is 0.235 ppm.
Currently, Crestwood, Missouri has a sulfur dioxide (SO2) concentration of 0.412 ppb.
The current ozone (O3) level in Crestwood, Missouri at the moment is 17.448 ppm.
Nitrogen dioxide (NO2) level in Crestwood, Missouri at the moment is 4.792 ppb.
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