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)
44
Good
Grain Valley, Missouri
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.24 μg/m³
0
55
155
255
425
605+
47.48 ppb
0
55
71
86
201
201+
0.99 ppb
0
36
76
186
605
1005+
13.35 ppb
0
54
101
361
1250
2050+
0.41 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Grain Valley, Missouri
Grain Valley, Missouri
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AQI 44
Good
5.45μg/m³
PM2.5
24.72μg/m³
PM10
47.16ppb
O3
1.10ppb
SO2
13.95ppb
NO2
0.42ppm
CO
AQI 43
Good
6.15μg/m³
PM2.5
30.54μg/m³
PM10
45.58ppb
O3
1.06ppb
SO2
12.84ppb
NO2
0.44ppm
CO
AQI 41
Good
6.30μg/m³
PM2.5
35.11μg/m³
PM10
43.65ppb
O3
1.17ppb
SO2
9.50ppb
NO2
0.44ppm
CO
AQI 42
Good
6.25μg/m³
PM2.5
30.74μg/m³
PM10
45.28ppb
O3
1.16ppb
SO2
10.40ppb
NO2
0.45ppm
CO
AQI 46
Good
5.54μg/m³
PM2.5
25.38μg/m³
PM10
49.97ppb
O3
1.15ppb
SO2
9.28ppb
NO2
0.41ppm
CO
AQI 43
Good
5.54μg/m³
PM2.5
27.21μg/m³
PM10
46.24ppb
O3
1.05ppb
SO2
18.36ppb
NO2
0.48ppm
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 44, 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 5.823 μg/m3.
The PM10 concentration in Grain Valley, Missouri is 27.243 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Grain Valley, Missouri is 0.412 ppm.
Currently, Grain Valley, Missouri has a sulfur dioxide (SO2) concentration of 0.992 ppb.
The current ozone (O3) level in Grain Valley, Missouri at the moment is 47.475 ppm.
Nitrogen dioxide (NO2) level in Grain Valley, Missouri at the moment is 13.35 ppb.
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