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)
33
Good
Marshall, Missouri
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.10 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.75 μg/m³
0
55
155
255
425
605+
31.66 ppb
0
55
71
86
201
201+
0.23 ppb
0
36
76
186
605
1005+
1.47 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Marshall, Missouri
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AQI 25
Good
2.92μg/m³
PM2.5
12.22μg/m³
PM10
26.77ppb
O3
0.18ppb
SO2
3.89ppb
NO2
0.23ppm
CO
AQI 26
Good
1.05μg/m³
PM2.5
4.28μg/m³
PM10
27.68ppb
O3
0.28ppb
SO2
4.16ppb
NO2
0.23ppm
CO
AQI 58
Moderate
12.75μg/m³
PM2.5
47.85μg/m³
PM10
27.67ppb
O3
0.82ppb
SO2
5.26ppb
NO2
0.34ppm
CO
AQI 58
Moderate
12.97μg/m³
PM2.5
51.15μg/m³
PM10
18.17ppb
O3
0.88ppb
SO2
12.36ppb
NO2
0.33ppm
CO
AQI 66
Moderate
16.73μg/m³
PM2.5
54.59μg/m³
PM10
23.11ppb
O3
0.84ppb
SO2
19.28ppb
NO2
0.41ppm
CO
AQI 62
Moderate
15.47μg/m³
PM2.5
69.68μg/m³
PM10
26.36ppb
O3
0.84ppb
SO2
18.14ppb
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 Marshall, Missouri is updated every hour for accuracy.
In the past 24 hours, the air quality in Marshall, Missouri was at its worst at 02:00:00 on 2025-09-04.
In the last 24 hours, the best air quality in Marshall, Missouri was observed at 07:00:00 on 2025-09-04.
As of now, the AQI in Marshall, Missouri is 25, indicating Good conditions.
Marshall, Missouri air has the highest levels of O3.
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 2.269 μg/m3.
The PM10 concentration in Marshall, Missouri is 9.082 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Marshall, Missouri is 0.219 ppm.
Currently, Marshall, Missouri has a sulfur dioxide (SO2) concentration of 0.259 ppb.
The current ozone (O3) level in Marshall, Missouri at the moment is 26.664 ppm.
Nitrogen dioxide (NO2) level in Marshall, Missouri at the moment is 3.298 ppb.
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