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)
36
Good
Sidney, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.77 μg/m³
0
55
155
255
425
605+
39.03 ppb
0
55
71
86
201
201+
1.25 ppb
0
36
76
186
605
1005+
5.91 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Sidney, Ohio
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AQI 33
Good
4.31μg/m³
PM2.5
17.10μg/m³
PM10
36.21ppb
O3
1.09ppb
SO2
5.68ppb
NO2
0.15ppm
CO
AQI 31
Good
5.01μg/m³
PM2.5
15.94μg/m³
PM10
33.85ppb
O3
1.16ppb
SO2
5.90ppb
NO2
0.15ppm
CO
AQI 33
Good
4.52μg/m³
PM2.5
17.04μg/m³
PM10
35.51ppb
O3
1.27ppb
SO2
7.01ppb
NO2
0.16ppm
CO
AQI 33
Good
4.78μg/m³
PM2.5
24.69μg/m³
PM10
36.23ppb
O3
1.15ppb
SO2
5.66ppb
NO2
0.14ppm
CO
AQI 33
Good
4.81μg/m³
PM2.5
19.74μg/m³
PM10
35.68ppb
O3
1.19ppb
SO2
6.69ppb
NO2
0.16ppm
CO
AQI 32
Good
4.86μg/m³
PM2.5
24.68μg/m³
PM10
35.28ppb
O3
1.18ppb
SO2
5.58ppb
NO2
0.14ppm
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 05:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Sidney, Ohio was observed at 10:00:00 on 2026-03-09.
As of now, the AQI in Sidney, Ohio is 36, 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 4.626 μg/m3.
The PM10 concentration in Sidney, Ohio is 15.766 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Sidney, Ohio is 0.15 ppm.
Currently, Sidney, Ohio has a sulfur dioxide (SO2) concentration of 1.253 ppb.
The current ozone (O3) level in Sidney, Ohio at the moment is 39.027 ppm.
Nitrogen dioxide (NO2) level in Sidney, Ohio at the moment is 5.909 ppb.
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