Stay updated with real-time air quality in Sidney, 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)
38
Good
Sidney, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.37 μg/m³
0
55
155
255
425
605+
41.33 ppb
0
55
71
86
201
201+
2.73 ppb
0
36
76
186
605
1005+
7.80 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Sidney, Ohio
Sidney, Ohio
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AQI 40
Good
5.62μg/m³
PM2.5
17.01μg/m³
PM10
42.57ppb
O3
2.44ppb
SO2
7.99ppb
NO2
0.11ppm
CO
AQI 43
Good
4.57μg/m³
PM2.5
16.93μg/m³
PM10
46.15ppb
O3
2.35ppb
SO2
7.67ppb
NO2
0.12ppm
CO
AQI 41
Good
5.63μg/m³
PM2.5
15.16μg/m³
PM10
43.79ppb
O3
2.88ppb
SO2
6.18ppb
NO2
0.13ppm
CO
AQI 40
Good
5.04μg/m³
PM2.5
20.98μg/m³
PM10
42.56ppb
O3
2.16ppb
SO2
7.14ppb
NO2
0.12ppm
CO
AQI 45
Good
4.72μg/m³
PM2.5
23.08μg/m³
PM10
48.81ppb
O3
2.34ppb
SO2
7.09ppb
NO2
0.12ppm
CO
AQI 45
Good
4.55μg/m³
PM2.5
13.34μg/m³
PM10
48.72ppb
O3
2.04ppb
SO2
7.29ppb
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 Sidney, Ohio is updated every hour for accuracy.
In the past 24 hours, the air quality in Sidney, Ohio was at its worst at 09:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Sidney, Ohio was observed at 03:00:00 on 2026-07-23.
As of now, the AQI in Sidney, Ohio is 38, indicating Good conditions.
Sidney, Ohio air has the highest levels of O3.
Poor air quality in Sidney, Ohio means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Sidney, Ohio are currently 5.702 μg/m3.
The PM10 concentration in Sidney, Ohio is 17.373 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Sidney, Ohio is 0.115 ppm.
Currently, Sidney, Ohio has a sulfur dioxide (SO2) concentration of 2.729 ppb.
The current ozone (O3) level in Sidney, Ohio at the moment is 41.329 ppm.
Nitrogen dioxide (NO2) level in Sidney, Ohio at the moment is 7.803 ppb.
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