Stay updated with real-time air quality in Grain Valley, 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)
52
Moderate
Grain Valley, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.01 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.02 μg/m³
0
55
155
255
425
605+
35.63 ppb
0
55
71
86
201
201+
1.17 ppb
0
36
76
186
605
1005+
4.34 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Grain Valley, Missouri
Grain Valley, Missouri
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AQI 52
Moderate
9.97μg/m³
PM2.5
37.00μg/m³
PM10
35.59ppb
O3
1.20ppb
SO2
4.50ppb
NO2
0.28ppm
CO
AQI 54
Moderate
11.27μg/m³
PM2.5
41.97μg/m³
PM10
33.91ppb
O3
1.17ppb
SO2
4.43ppb
NO2
0.28ppm
CO
AQI 49
Good
9.06μg/m³
PM2.5
41.70μg/m³
PM10
35.30ppb
O3
1.29ppb
SO2
5.08ppb
NO2
0.28ppm
CO
AQI 52
Moderate
9.72μg/m³
PM2.5
38.05μg/m³
PM10
32.30ppb
O3
1.33ppb
SO2
5.24ppb
NO2
0.29ppm
CO
AQI 38
Good
6.77μg/m³
PM2.5
27.68μg/m³
PM10
31.25ppb
O3
1.24ppb
SO2
4.92ppb
NO2
0.28ppm
CO
AQI 54
Moderate
11.12μg/m³
PM2.5
46.47μg/m³
PM10
32.63ppb
O3
1.19ppb
SO2
4.74ppb
NO2
0.29ppm
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 Grain Valley, Missouri is updated every hour for accuracy.
In the past 24 hours, the air quality in Grain Valley, Missouri was at its worst at 07:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Grain Valley, Missouri was observed at 03:00:00 on 2026-07-23.
As of now, the AQI in Grain Valley, Missouri is 52, indicating Moderate conditions.
Grain Valley, Missouri air has the highest levels of PM2.5.
Poor air quality in Grain Valley, Missouri means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Grain Valley, Missouri are currently 10.009 μg/m3.
The PM10 concentration in Grain Valley, Missouri is 37.016 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Grain Valley, Missouri is 0.277 ppm.
Currently, Grain Valley, Missouri has a sulfur dioxide (SO2) concentration of 1.172 ppb.
The current ozone (O3) level in Grain Valley, Missouri at the moment is 35.634 ppm.
Nitrogen dioxide (NO2) level in Grain Valley, Missouri at the moment is 4.341 ppb.
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