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)
47
Good
Grain Valley, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.65 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.73 μg/m³
0
55
155
255
425
605+
50.79 ppb
0
55
71
86
201
201+
0.99 ppb
0
36
76
186
605
1005+
8.79 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Grain Valley, Missouri
Grain Valley, Missouri
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AQI 47
Good
6.71μg/m³
PM2.5
28.08μg/m³
PM10
50.95ppb
O3
1.08ppb
SO2
8.84ppb
NO2
0.34ppm
CO
AQI 45
Good
6.40μg/m³
PM2.5
27.59μg/m³
PM10
48.94ppb
O3
1.03ppb
SO2
11.50ppb
NO2
0.36ppm
CO
AQI 47
Good
6.75μg/m³
PM2.5
33.40μg/m³
PM10
50.91ppb
O3
1.16ppb
SO2
5.55ppb
NO2
0.35ppm
CO
AQI 46
Good
7.02μg/m³
PM2.5
30.14μg/m³
PM10
50.41ppb
O3
1.16ppb
SO2
7.30ppb
NO2
0.37ppm
CO
AQI 48
Good
6.77μg/m³
PM2.5
30.01μg/m³
PM10
52.06ppb
O3
1.14ppb
SO2
5.70ppb
NO2
0.33ppm
CO
AQI 45
Good
6.13μg/m³
PM2.5
26.98μg/m³
PM10
49.12ppb
O3
1.03ppb
SO2
13.51ppb
NO2
0.39ppm
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 04:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Grain Valley, Missouri was observed at 03:00:00 on 2026-10-22.
As of now, the AQI in Grain Valley, Missouri is 47, indicating Good conditions.
Grain Valley, Missouri air has the highest levels of O3.
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 6.652 μg/m3.
The PM10 concentration in Grain Valley, Missouri is 26.733 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Grain Valley, Missouri is 0.338 ppm.
Currently, Grain Valley, Missouri has a sulfur dioxide (SO2) concentration of 0.993 ppb.
The current ozone (O3) level in Grain Valley, Missouri at the moment is 50.789 ppm.
Nitrogen dioxide (NO2) level in Grain Valley, Missouri at the moment is 8.787 ppb.
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