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)
27
Good
Sidney, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.51 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.50 μg/m³
0
55
155
255
425
605+
14.40 ppb
0
55
71
86
201
201+
1.61 ppb
0
36
76
186
605
1005+
7.58 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Sidney, Ohio
Sidney, Ohio
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AQI 33
Good
6.03μg/m³
PM2.5
28.25μg/m³
PM10
19.80ppb
O3
1.33ppb
SO2
7.82ppb
NO2
0.26ppm
CO
AQI 33
Good
6.09μg/m³
PM2.5
29.05μg/m³
PM10
20.98ppb
O3
1.35ppb
SO2
7.94ppb
NO2
0.27ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
28.81μg/m³
PM10
21.41ppb
O3
1.24ppb
SO2
9.16ppb
NO2
0.27ppm
CO
AQI 33
Good
5.93μg/m³
PM2.5
20.43μg/m³
PM10
20.13ppb
O3
1.38ppb
SO2
7.88ppb
NO2
0.26ppm
CO
AQI 33
Good
5.56μg/m³
PM2.5
25.25μg/m³
PM10
20.43ppb
O3
1.34ppb
SO2
8.45ppb
NO2
0.26ppm
CO
AQI 27
Good
5.28μg/m³
PM2.5
23.84μg/m³
PM10
21.82ppb
O3
1.40ppb
SO2
7.91ppb
NO2
0.26ppm
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 07:00:00 on 2025-09-05.
In the last 24 hours, the best air quality in Sidney, Ohio was observed at 07:00:00 on 2025-09-06.
As of now, the AQI in Sidney, Ohio is 27, indicating Good conditions.
Sidney, Ohio air has the highest levels of PM2.5.
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 5.058 μg/m3.
The PM10 concentration in Sidney, Ohio is 22.271 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Sidney, Ohio is 0.245 ppm.
Currently, Sidney, Ohio has a sulfur dioxide (SO2) concentration of 1.091 ppb.
The current ozone (O3) level in Sidney, Ohio at the moment is 17.244 ppm.
Nitrogen dioxide (NO2) level in Sidney, Ohio at the moment is 9.675 ppb.
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