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)
52
Moderate
Sidney, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.70 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.19 μg/m³
0
55
155
255
425
605+
30.35 ppb
0
55
71
86
201
201+
1.12 ppb
0
36
76
186
605
1005+
7.30 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Sidney, Ohio
Sidney, Ohio
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AQI 52
Moderate
9.80μg/m³
PM2.5
36.23μg/m³
PM10
34.12ppb
O3
1.45ppb
SO2
7.41ppb
NO2
0.20ppm
CO
AQI 49
Good
9.32μg/m³
PM2.5
33.81μg/m³
PM10
34.34ppb
O3
1.38ppb
SO2
7.21ppb
NO2
0.20ppm
CO
AQI 44
Good
7.53μg/m³
PM2.5
20.84μg/m³
PM10
29.67ppb
O3
1.47ppb
SO2
7.56ppb
NO2
0.18ppm
CO
AQI 52
Moderate
10.11μg/m³
PM2.5
27.00μg/m³
PM10
27.14ppb
O3
1.11ppb
SO2
7.48ppb
NO2
0.20ppm
CO
AQI 44
Good
8.16μg/m³
PM2.5
33.19μg/m³
PM10
34.96ppb
O3
1.42ppb
SO2
6.37ppb
NO2
0.19ppm
CO
AQI 49
Good
9.38μg/m³
PM2.5
24.70μg/m³
PM10
27.41ppb
O3
1.12ppb
SO2
7.58ppb
NO2
0.20ppm
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 2026-06-07.
In the last 24 hours, the best air quality in Sidney, Ohio was observed at 02:00:00 on 2026-06-08.
As of now, the AQI in Sidney, Ohio is 49, 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 9.463 μg/m3.
The PM10 concentration in Sidney, Ohio is 27.579 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Sidney, Ohio is 0.197 ppm.
Currently, Sidney, Ohio has a sulfur dioxide (SO2) concentration of 1.465 ppb.
The current ozone (O3) level in Sidney, Ohio at the moment is 33.387 ppm.
Nitrogen dioxide (NO2) level in Sidney, Ohio at the moment is 7.251 ppb.
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