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

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.42 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
41.25 μg/m³
0
55
155
255
425
605+
22.88 ppb
0
55
71
86
201
201+
1.95 ppb
0
36
76
186
605
1005+
10.02 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Circleville, Ohio
Circleville, Ohio
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AQI 44
Good
7.61μg/m³
PM2.5
28.63μg/m³
PM10
23.82ppb
O3
1.27ppb
SO2
10.22ppb
NO2
0.14ppm
CO
AQI 44
Good
7.66μg/m³
PM2.5
40.81μg/m³
PM10
19.85ppb
O3
1.26ppb
SO2
9.43ppb
NO2
0.15ppm
CO
AQI 49
Good
8.70μg/m³
PM2.5
19.05μg/m³
PM10
21.66ppb
O3
1.35ppb
SO2
10.20ppb
NO2
0.12ppm
CO
AQI 44
Good
8.46μg/m³
PM2.5
26.36μg/m³
PM10
23.14ppb
O3
1.28ppb
SO2
10.11ppb
NO2
0.14ppm
CO
AQI 44
Good
8.35μg/m³
PM2.5
17.68μg/m³
PM10
20.85ppb
O3
1.33ppb
SO2
10.46ppb
NO2
0.12ppm
CO
AQI 49
Good
8.54μg/m³
PM2.5
20.48μg/m³
PM10
20.93ppb
O3
1.33ppb
SO2
10.45ppb
NO2
0.12ppm
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 04:00:00 on 2026-08-12.
In the last 24 hours, the best air quality in Circleville, Ohio was observed at 03:00:00 on 2026-08-12.
As of now, the AQI in Circleville, Ohio is 38, 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 7.282 μg/m3.
The PM10 concentration in Circleville, Ohio is 25.593 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Circleville, Ohio is 0.142 ppm.
Currently, Circleville, Ohio has a sulfur dioxide (SO2) concentration of 1.335 ppb.
The current ozone (O3) level in Circleville, Ohio at the moment is 23.12 ppm.
Nitrogen dioxide (NO2) level in Circleville, Ohio at the moment is 9.582 ppb.
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