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)
44
Good
Harrison, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
31.98 μg/m³
0
55
155
255
425
605+
18.58 ppb
0
55
71
86
201
201+
1.29 ppb
0
36
76
186
605
1005+
21.54 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Harrison, Ohio
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AQI 44
Good
7.80μg/m³
PM2.5
33.92μg/m³
PM10
16.98ppb
O3
1.29ppb
SO2
22.30ppb
NO2
0.34ppm
CO
AQI 44
Good
7.58μg/m³
PM2.5
32.82μg/m³
PM10
17.91ppb
O3
1.30ppb
SO2
22.57ppb
NO2
0.34ppm
CO
AQI 38
Good
7.15μg/m³
PM2.5
30.46μg/m³
PM10
20.48ppb
O3
1.33ppb
SO2
23.70ppb
NO2
0.36ppm
CO
AQI 38
Good
7.26μg/m³
PM2.5
31.22μg/m³
PM10
19.39ppb
O3
1.31ppb
SO2
23.06ppb
NO2
0.35ppm
CO
AQI 38
Good
6.70μg/m³
PM2.5
28.36μg/m³
PM10
21.71ppb
O3
1.29ppb
SO2
21.50ppb
NO2
0.34ppm
CO
AQI 38
Good
7.24μg/m³
PM2.5
30.89μg/m³
PM10
19.60ppb
O3
1.32ppb
SO2
23.26ppb
NO2
0.35ppm
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 05:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Harrison, Ohio was observed at 04:00:00 on 2026-01-22.
The current air quality in Harrison, Ohio is 44, categorized as Good 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 7.524 μg/m3.
The current PM10 concentration at Harrison, Ohio is 31.976 μg/m3.
The current carbon monoxide (CO) concentration at Harrison, Ohio is 0.336 ppm.
The current sulfur dioxide (SO2) concentration at Harrison, Ohio is 1.293 ppb.
The current ozone (O3) concentration at Harrison, Ohio is 18.576 ppm.
The current nitrogen dioxide (NO2) concentration at Harrison, Ohio is 21.544 ppb.
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