Stay updated with real-time air quality in Harrison, 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)
18
Good
Harrison, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.17 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.85 μg/m³
0
55
155
255
425
605+
18.96 ppb
0
55
71
86
201
201+
1.60 ppb
0
36
76
186
605
1005+
10.83 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Harrison, Ohio
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AQI 18
Good
2.95μg/m³
PM2.5
12.21μg/m³
PM10
18.98ppb
O3
1.67ppb
SO2
10.88ppb
NO2
0.27ppm
CO
AQI 19
Good
3.37μg/m³
PM2.5
13.73μg/m³
PM10
19.82ppb
O3
1.70ppb
SO2
10.90ppb
NO2
0.27ppm
CO
AQI 27
Good
4.62μg/m³
PM2.5
18.58μg/m³
PM10
21.05ppb
O3
1.84ppb
SO2
11.54ppb
NO2
0.28ppm
CO
AQI 22
Good
4.03μg/m³
PM2.5
16.32μg/m³
PM10
20.73ppb
O3
1.77ppb
SO2
11.08ppb
NO2
0.27ppm
CO
AQI 33
Good
5.68μg/m³
PM2.5
21.85μg/m³
PM10
21.08ppb
O3
1.59ppb
SO2
10.33ppb
NO2
0.26ppm
CO
AQI 22
Good
4.36μg/m³
PM2.5
17.30μg/m³
PM10
20.29ppb
O3
1.78ppb
SO2
11.13ppb
NO2
0.27ppm
CO
Air quality data and pollutant measurements for Ohio, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Harrison, Ohio is updated every hour.
The worst air quality in Harrison, Ohio in the last 24 hours was observed at 09:00:00 on 2026-08-17.
In the last 24 hrs, the best air quality in Harrison, Ohio was observed at 01:00:00 on 2026-08-18.
The current air quality in Harrison, Ohio is 18, categorized as Good based on real-time data.
The most common pollutant in Harrison, Ohio is O3.
If the air quality in Harrison, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Harrison, Ohio is 3.168 μg/m3.
The current PM10 concentration at Harrison, Ohio is 13.848 μg/m3.
The current carbon monoxide (CO) concentration at Harrison, Ohio is 0.269 ppm.
The current sulfur dioxide (SO2) concentration at Harrison, Ohio is 1.6 ppb.
The current ozone (O3) concentration at Harrison, Ohio is 18.956 ppm.
The current nitrogen dioxide (NO2) concentration at Harrison, Ohio is 10.832 ppb.
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