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

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.12 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.36 μg/m³
0
55
155
255
425
605+
16.91 ppb
0
55
71
86
201
201+
1.78 ppb
0
36
76
186
605
1005+
5.55 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Circleville, Ohio
Circleville, Ohio
Scroll To Air Quality MapLoading...
AQI 27
Good
5.14μg/m³
PM2.5
17.76μg/m³
PM10
12.06ppb
O3
1.65ppb
SO2
6.14ppb
NO2
0.26ppm
CO
AQI 27
Good
4.86μg/m³
PM2.5
16.96μg/m³
PM10
14.79ppb
O3
1.69ppb
SO2
5.80ppb
NO2
0.27ppm
CO
AQI 27
Good
5.07μg/m³
PM2.5
10.73μg/m³
PM10
13.71ppb
O3
1.82ppb
SO2
4.34ppb
NO2
0.29ppm
CO
AQI 27
Good
5.22μg/m³
PM2.5
18.94μg/m³
PM10
18.72ppb
O3
1.51ppb
SO2
5.23ppb
NO2
0.28ppm
CO
AQI 27
Good
5.44μg/m³
PM2.5
11.11μg/m³
PM10
16.32ppb
O3
1.82ppb
SO2
4.55ppb
NO2
0.29ppm
CO
AQI 27
Good
5.39μg/m³
PM2.5
12.36μg/m³
PM10
17.05ppb
O3
1.76ppb
SO2
4.71ppb
NO2
0.29ppm
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 Circleville, Ohio is updated every hour for accuracy.
In the past 24 hours, the air quality in Circleville, Ohio was at its worst at 03:00:00 on 2026-09-07.
In the last 24 hours, the best air quality in Circleville, Ohio was observed at 11:00:00 on 2026-09-07.
As of now, the AQI in Circleville, Ohio is 27, indicating Good conditions.
Circleville, Ohio air has the highest levels of PM2.5.
Poor air quality in Circleville, Ohio means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Circleville, Ohio are currently 5.121 μg/m3.
The PM10 concentration in Circleville, Ohio is 16.356 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Circleville, Ohio is 0.324 ppm.
Currently, Circleville, Ohio has a sulfur dioxide (SO2) concentration of 1.785 ppb.
The current ozone (O3) level in Circleville, Ohio at the moment is 16.91 ppm.
Nitrogen dioxide (NO2) level in Circleville, Ohio at the moment is 5.553 ppb.
All Rights Reserved © Ambee Inc. 2025