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)
36
Good
Grain Valley, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.80 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.67 μg/m³
0
55
155
255
425
605+
39.17 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
2.76 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Very high
Grain Valley, Missouri
Grain Valley, Missouri
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AQI 37
Good
4.08μg/m³
PM2.5
19.74μg/m³
PM10
40.40ppb
O3
0.29ppb
SO2
2.98ppb
NO2
0.18ppm
CO
AQI 34
Good
4.10μg/m³
PM2.5
19.65μg/m³
PM10
37.19ppb
O3
0.27ppb
SO2
2.42ppb
NO2
0.19ppm
CO
AQI 36
Good
4.16μg/m³
PM2.5
14.54μg/m³
PM10
39.09ppb
O3
0.26ppb
SO2
4.00ppb
NO2
0.19ppm
CO
AQI 38
Good
4.14μg/m³
PM2.5
12.73μg/m³
PM10
41.38ppb
O3
0.25ppb
SO2
4.28ppb
NO2
0.19ppm
CO
AQI 39
Good
4.07μg/m³
PM2.5
15.43μg/m³
PM10
41.58ppb
O3
0.27ppb
SO2
4.10ppb
NO2
0.18ppm
CO
AQI 38
Good
3.82μg/m³
PM2.5
15.13μg/m³
PM10
40.98ppb
O3
0.25ppb
SO2
3.06ppb
NO2
0.20ppm
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 2026-04-23.
In the last 24 hours, the best air quality in Grain Valley, Missouri was observed at 02:00:00 on 2026-04-24.
As of now, the AQI in Grain Valley, Missouri is 36, 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 4.802 μg/m3.
The PM10 concentration in Grain Valley, Missouri is 24.674 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Grain Valley, Missouri is 0.182 ppm.
Currently, Grain Valley, Missouri has a sulfur dioxide (SO2) concentration of 0.301 ppb.
The current ozone (O3) level in Grain Valley, Missouri at the moment is 39.168 ppm.
Nitrogen dioxide (NO2) level in Grain Valley, Missouri at the moment is 2.758 ppb.
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