Stay updated with real-time air quality in Mount Vernon, Ohio 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)
47
Good
Mount Vernon, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.83 μg/m³
0
55
155
255
425
605+
51.35 ppb
0
55
71
86
201
201+
1.25 ppb
0
36
76
186
605
1005+
9.17 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Mount Vernon, Ohio
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AQI 49
Good
8.85μg/m³
PM2.5
30.26μg/m³
PM10
48.23ppb
O3
1.11ppb
SO2
10.46ppb
NO2
0.23ppm
CO
AQI 43
Good
6.73μg/m³
PM2.5
30.38μg/m³
PM10
46.24ppb
O3
0.82ppb
SO2
4.01ppb
NO2
0.23ppm
CO
AQI 49
Good
8.87μg/m³
PM2.5
29.99μg/m³
PM10
48.00ppb
O3
1.11ppb
SO2
10.39ppb
NO2
0.23ppm
CO
AQI 50
Good
6.34μg/m³
PM2.5
28.22μg/m³
PM10
53.98ppb
O3
1.11ppb
SO2
12.68ppb
NO2
0.25ppm
CO
AQI 44
Good
7.76μg/m³
PM2.5
33.09μg/m³
PM10
46.88ppb
O3
0.52ppb
SO2
4.79ppb
NO2
0.26ppm
CO
AQI 54
Moderate
9.02μg/m³
PM2.5
33.85μg/m³
PM10
56.46ppb
O3
1.13ppb
SO2
11.73ppb
NO2
0.25ppm
CO
Air quality measurements for Ohio, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Mount Vernon, Ohio is updated on an hourly basis.
The worst air quality in Mount Vernon, Ohio was recorded at 10:00:00 on 2026-04-23.
The best air quality in Mount Vernon, Ohio was recorded at 09:00:00 on 2026-04-23.
The real-time air quality index in Mount Vernon, Ohio is 47, currently categorized as Good.
The most common pollutant in Mount Vernon, Ohio is O3.
If the air quality in Mount Vernon, Ohio is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Mount Vernon, Ohio at present are 7.464 μg/m3.
The current PM10 levels in Mount Vernon, Ohio are 33.832 μg/m3.
The current carbon monoxide (CO) level in Mount Vernon, Ohio is 0.323 ppm.
The current sulfur dioxide (SO2) levels in Mount Vernon, Ohio are 1.245 ppb.
The current ozone (O3) levels at Mount Vernon, Ohio is 51.352 ppm.
The current nitrogen dioxide (NO2) levels at Mount Vernon, Ohio is 9.17 ppb.
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