Stay updated with real-time air quality in Ohio, USA 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)
27
Good
Ohio, USA
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.79 μg/m³
0
55
155
255
425
605+
25.91 ppb
0
55
71
86
201
201+
1.40 ppb
0
36
76
186
605
1005+
13.55 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Ohio, USA
Ohio, USA
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 30
Good
3.65μg/m³
PM2.5
16.47μg/m³
PM10
32.19ppb
O3
0.77ppb
SO2
12.83ppb
NO2
0.27ppm
CO
AQI 25
Good
4.28μg/m³
PM2.5
17.86μg/m³
PM10
27.18ppb
O3
1.47ppb
SO2
8.40ppb
NO2
0.23ppm
CO
AQI 24
Good
4.27μg/m³
PM2.5
17.96μg/m³
PM10
26.06ppb
O3
1.04ppb
SO2
24.15ppb
NO2
0.36ppm
CO
AQI 28
Good
5.40μg/m³
PM2.5
22.49μg/m³
PM10
30.27ppb
O3
0.57ppb
SO2
8.27ppb
NO2
0.20ppm
CO
AQI 31
Good
5.34μg/m³
PM2.5
23.70μg/m³
PM10
33.76ppb
O3
0.57ppb
SO2
11.49ppb
NO2
0.32ppm
CO
AQI 33
Good
5.80μg/m³
PM2.5
21.96μg/m³
PM10
35.73ppb
O3
0.58ppb
SO2
9.60ppb
NO2
0.21ppm
CO
Air quality and pollutant data for Ohio, 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 Ohio, USA is updated every hour for accuracy.
In the past 24 hours, the air quality in Ohio, USA was at its worst at 10:00:00 on 2026-01-22.
In the last 24 hours, the best air quality in Ohio, USA was observed at 04:00:00 on 2026-01-22.
As of now, the AQI in Ohio, USA is 27, indicating Good conditions.
Ohio, USA air has the highest levels of PM2.5.
Poor air quality in Ohio, USA means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Ohio, USA are currently 5.138 μg/m3.
The PM10 concentration in Ohio, USA is 20.787 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Ohio, USA is 0.292 ppm.
Currently, Ohio, USA has a sulfur dioxide (SO2) concentration of 1.404 ppb.
The current ozone (O3) level in Ohio, USA at the moment is 25.913 ppm.
Nitrogen dioxide (NO2) level in Ohio, USA at the moment is 13.548 ppb.
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