Stay updated with real-time air quality in Marshall, 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)
38
Good
Marshall, Missouri
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.92 μg/m³
0
55
155
255
425
605+
27.47 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
1.05 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marshall, Missouri
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AQI 38
Good
6.88μg/m³
PM2.5
30.43μg/m³
PM10
10.78ppb
O3
0.23ppb
SO2
2.22ppb
NO2
0.15ppm
CO
AQI 38
Good
6.63μg/m³
PM2.5
29.41μg/m³
PM10
11.39ppb
O3
0.25ppb
SO2
2.63ppb
NO2
0.15ppm
CO
AQI 24
Good
3.10μg/m³
PM2.5
15.40μg/m³
PM10
26.18ppb
O3
0.88ppb
SO2
2.98ppb
NO2
0.20ppm
CO
AQI 29
Good
3.79μg/m³
PM2.5
29.58μg/m³
PM10
30.81ppb
O3
0.81ppb
SO2
3.27ppb
NO2
0.19ppm
CO
AQI 38
Good
7.07μg/m³
PM2.5
19.80μg/m³
PM10
18.78ppb
O3
0.79ppb
SO2
6.52ppb
NO2
0.24ppm
CO
AQI 38
Good
6.68μg/m³
PM2.5
27.27μg/m³
PM10
8.02ppb
O3
0.82ppb
SO2
6.22ppb
NO2
0.23ppm
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 Marshall, Missouri is updated every hour for accuracy.
In the past 24 hours, the air quality in Marshall, Missouri was at its worst at 11:00:00 on 2025-07-21.
In the last 24 hours, the best air quality in Marshall, Missouri was observed at 03:00:00 on 2025-07-21.
As of now, the AQI in Marshall, Missouri is 49, indicating Good conditions.
Marshall, Missouri air has the highest levels of PM2.5.
Poor air quality in Marshall, Missouri means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Marshall, Missouri are currently 8.963 μg/m3.
The PM10 concentration in Marshall, Missouri is 39.247 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Marshall, Missouri is 0.156 ppm.
Currently, Marshall, Missouri has a sulfur dioxide (SO2) concentration of 0.17 ppb.
The current ozone (O3) level in Marshall, Missouri at the moment is 6.013 ppm.
Nitrogen dioxide (NO2) level in Marshall, Missouri at the moment is 2.137 ppb.
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