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
7.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.21 μg/m³
0
55
155
255
425
605+
34.04 ppb
0
55
71
86
201
201+
1.04 ppb
0
36
76
186
605
1005+
6.67 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Circleville, Ohio
Circleville, Ohio
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AQI 49
Good
8.88μg/m³
PM2.5
25.51μg/m³
PM10
30.01ppb
O3
1.01ppb
SO2
6.30ppb
NO2
0.24ppm
CO
AQI 49
Good
8.53μg/m³
PM2.5
20.48μg/m³
PM10
35.35ppb
O3
1.00ppb
SO2
4.67ppb
NO2
0.22ppm
CO
AQI 49
Good
9.13μg/m³
PM2.5
17.33μg/m³
PM10
38.87ppb
O3
1.08ppb
SO2
3.38ppb
NO2
0.16ppm
CO
AQI 44
Good
7.71μg/m³
PM2.5
23.51μg/m³
PM10
40.94ppb
O3
1.00ppb
SO2
4.10ppb
NO2
0.19ppm
CO
AQI 44
Good
7.89μg/m³
PM2.5
15.41μg/m³
PM10
40.13ppb
O3
1.08ppb
SO2
3.55ppb
NO2
0.15ppm
CO
AQI 44
Good
7.85μg/m³
PM2.5
16.31μg/m³
PM10
40.15ppb
O3
1.06ppb
SO2
3.68ppb
NO2
0.16ppm
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 09:00:00 on 2026-06-07.
In the last 24 hours, the best air quality in Circleville, Ohio was observed at 09:00:00 on 2026-06-07.
As of now, the AQI in Circleville, Ohio is 44, 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 7.89 μg/m3.
The PM10 concentration in Circleville, Ohio is 29.214 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Circleville, Ohio is 0.221 ppm.
Currently, Circleville, Ohio has a sulfur dioxide (SO2) concentration of 1.045 ppb.
The current ozone (O3) level in Circleville, Ohio at the moment is 34.036 ppm.
Nitrogen dioxide (NO2) level in Circleville, Ohio at the moment is 6.674 ppb.
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