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)
41
Good
Grain Valley, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.17 μg/m³
0
55
155
255
425
605+
43.74 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
8.52 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Grain Valley, Missouri
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AQI 42
Good
5.88μg/m³
PM2.5
39.99μg/m³
PM10
45.29ppb
O3
0.32ppb
SO2
7.78ppb
NO2
0.34ppm
CO
AQI 43
Good
5.95μg/m³
PM2.5
44.52μg/m³
PM10
45.95ppb
O3
0.29ppb
SO2
7.56ppb
NO2
0.35ppm
CO
AQI 43
Good
6.21μg/m³
PM2.5
20.09μg/m³
PM10
45.82ppb
O3
0.32ppb
SO2
6.25ppb
NO2
0.35ppm
CO
AQI 43
Good
7.06μg/m³
PM2.5
28.50μg/m³
PM10
45.70ppb
O3
0.33ppb
SO2
7.38ppb
NO2
0.36ppm
CO
AQI 44
Good
7.38μg/m³
PM2.5
31.00μg/m³
PM10
46.96ppb
O3
0.33ppb
SO2
6.40ppb
NO2
0.33ppm
CO
AQI 43
Good
5.15μg/m³
PM2.5
21.32μg/m³
PM10
45.98ppb
O3
0.30ppb
SO2
9.78ppb
NO2
0.38ppm
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 11:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Grain Valley, Missouri was observed at 02:00:00 on 2026-03-09.
As of now, the AQI in Grain Valley, Missouri is 41, 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 5.787 μg/m3.
The PM10 concentration in Grain Valley, Missouri is 22.17 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Grain Valley, Missouri is 0.332 ppm.
Currently, Grain Valley, Missouri has a sulfur dioxide (SO2) concentration of 0.286 ppb.
The current ozone (O3) level in Grain Valley, Missouri at the moment is 43.738 ppm.
Nitrogen dioxide (NO2) level in Grain Valley, Missouri at the moment is 8.518 ppb.
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