Stay updated with real-time air quality in Kirkwood, 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)
27
Good
Kirkwood, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.69 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.19 μg/m³
0
55
155
255
425
605+
29.17 ppb
0
55
71
86
201
201+
1.26 ppb
0
36
76
186
605
1005+
4.32 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Kirkwood, Missouri
Kirkwood, Missouri
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AQI 27
Good
3.70μg/m³
PM2.5
15.54μg/m³
PM10
29.45ppb
O3
1.22ppb
SO2
4.20ppb
NO2
0.20ppm
CO
AQI 26
Good
3.55μg/m³
PM2.5
14.78μg/m³
PM10
28.45ppb
O3
1.17ppb
SO2
4.76ppb
NO2
0.20ppm
CO
AQI 27
Good
4.10μg/m³
PM2.5
15.74μg/m³
PM10
28.96ppb
O3
1.42ppb
SO2
4.60ppb
NO2
0.20ppm
CO
AQI 27
Good
4.40μg/m³
PM2.5
17.46μg/m³
PM10
29.39ppb
O3
1.10ppb
SO2
4.61ppb
NO2
0.20ppm
CO
AQI 26
Good
3.57μg/m³
PM2.5
14.03μg/m³
PM10
28.02ppb
O3
1.34ppb
SO2
4.77ppb
NO2
0.20ppm
CO
AQI 28
Good
3.65μg/m³
PM2.5
15.86μg/m³
PM10
30.45ppb
O3
1.15ppb
SO2
3.64ppb
NO2
0.20ppm
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 Kirkwood, Missouri are available every hour.
Kirkwood, Missouri experienced its worst air quality at 03:00:00, 2026-09-06.
The best air quality in Kirkwood, Missouri was observed at 12:00:00 on 2026-09-07.
The air quality in Kirkwood, Missouri right now is Good, with an AQI of 27.
In Kirkwood, Missouri, O3 is the most frequently found pollutant.
When air quality in Kirkwood, Missouri is compromised, staying indoors and wearing a mask can reduce health risks.
Kirkwood, Missouri currently has a PM2.5 concentration of 3.692 μg/m3.
Kirkwood, Missouri currently has a PM10 concentration of 15.186 μg/m3.
The current carbon monoxide (CO) level in Kirkwood, Missouri is 0.2 ppm.
The current sulfur dioxide (SO2) concentration in Kirkwood, Missouri is 1.265 ppb.
Kirkwood, Missouri currently has an ozone (O3) concentration of 29.167 ppm.
The current level of nitrogen dioxide (NO2) in Kirkwood, Missouri is 4.322 ppb.
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