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)
38
Good
Harrison, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.06 μg/m³
0
55
155
255
425
605+
22.09 ppb
0
55
71
86
201
201+
1.13 ppb
0
36
76
186
605
1005+
12.47 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Harrison, Ohio
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AQI 58
Moderate
12.78μg/m³
PM2.5
54.99μg/m³
PM10
12.04ppb
O3
1.42ppb
SO2
20.07ppb
NO2
0.51ppm
CO
AQI 58
Moderate
12.78μg/m³
PM2.5
55.07μg/m³
PM10
14.88ppb
O3
1.42ppb
SO2
20.12ppb
NO2
0.52ppm
CO
AQI 58
Moderate
13.24μg/m³
PM2.5
53.57μg/m³
PM10
21.87ppb
O3
1.45ppb
SO2
21.40ppb
NO2
0.57ppm
CO
AQI 58
Moderate
12.83μg/m³
PM2.5
54.23μg/m³
PM10
19.05ppb
O3
1.43ppb
SO2
20.43ppb
NO2
0.54ppm
CO
AQI 56
Moderate
11.65μg/m³
PM2.5
46.72μg/m³
PM10
21.37ppb
O3
1.40ppb
SO2
18.64ppb
NO2
0.49ppm
CO
AQI 58
Moderate
12.81μg/m³
PM2.5
49.30μg/m³
PM10
19.84ppb
O3
1.44ppb
SO2
20.18ppb
NO2
0.53ppm
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 06:00:00 on 2026-03-07.
In the last 24 hrs, the best air quality in Harrison, Ohio was observed at 07:00:00 on 2026-03-06.
The current air quality in Harrison, Ohio is 54, categorized as Moderate based on real-time data.
The most common pollutant in Harrison, Ohio is PM2.5.
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 11.179 μg/m3.
The current PM10 concentration at Harrison, Ohio is 45.953 μg/m3.
The current carbon monoxide (CO) concentration at Harrison, Ohio is 0.257 ppm.
The current sulfur dioxide (SO2) concentration at Harrison, Ohio is 1.336 ppb.
The current ozone (O3) concentration at Harrison, Ohio is 22.656 ppm.
The current nitrogen dioxide (NO2) concentration at Harrison, Ohio is 16.48 ppb.
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