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)
50
Good
Sidney, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
28.68 μg/m³
0
55
155
255
425
605+
53.67 ppb
0
55
71
86
201
201+
1.33 ppb
0
36
76
186
605
1005+
10.04 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Sidney, Ohio
Sidney, Ohio
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AQI 47
Good
8.10μg/m³
PM2.5
29.64μg/m³
PM10
51.15ppb
O3
1.72ppb
SO2
11.18ppb
NO2
0.26ppm
CO
AQI 49
Good
6.80μg/m³
PM2.5
28.51μg/m³
PM10
52.53ppb
O3
1.90ppb
SO2
11.55ppb
NO2
0.27ppm
CO
AQI 47
Good
6.64μg/m³
PM2.5
29.46μg/m³
PM10
50.52ppb
O3
1.75ppb
SO2
10.64ppb
NO2
0.27ppm
CO
AQI 45
Good
6.96μg/m³
PM2.5
27.91μg/m³
PM10
49.39ppb
O3
1.90ppb
SO2
11.88ppb
NO2
0.27ppm
CO
AQI 45
Good
6.68μg/m³
PM2.5
26.00μg/m³
PM10
49.26ppb
O3
1.97ppb
SO2
11.03ppb
NO2
0.28ppm
CO
AQI 45
Good
7.25μg/m³
PM2.5
31.50μg/m³
PM10
49.16ppb
O3
2.00ppb
SO2
12.30ppb
NO2
0.27ppm
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 03:00:00 on 2026-10-22.
In the last 24 hours, the best air quality in Sidney, Ohio was observed at 04:00:00 on 2026-10-22.
As of now, the AQI in Sidney, Ohio is 50, 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 6.993 μg/m3.
The PM10 concentration in Sidney, Ohio is 28.678 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Sidney, Ohio is 0.267 ppm.
Currently, Sidney, Ohio has a sulfur dioxide (SO2) concentration of 1.332 ppb.
The current ozone (O3) level in Sidney, Ohio at the moment is 53.673 ppm.
Nitrogen dioxide (NO2) level in Sidney, Ohio at the moment is 10.039 ppb.
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