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)
56
Moderate
Sidney, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
47.21 μg/m³
0
55
155
255
425
605+
28.48 ppb
0
55
71
86
201
201+
2.07 ppb
0
36
76
186
605
1005+
6.56 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Sidney, Ohio
Sidney, Ohio
Scroll To Air Quality MapLoading...
AQI 54
Moderate
10.83μg/m³
PM2.5
41.24μg/m³
PM10
24.45ppb
O3
2.13ppb
SO2
13.01ppb
NO2
0.23ppm
CO
AQI 54
Moderate
10.93μg/m³
PM2.5
38.85μg/m³
PM10
25.77ppb
O3
2.24ppb
SO2
12.95ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.97μg/m³
PM2.5
39.88μg/m³
PM10
30.62ppb
O3
1.75ppb
SO2
15.20ppb
NO2
0.23ppm
CO
AQI 54
Moderate
10.91μg/m³
PM2.5
41.46μg/m³
PM10
22.13ppb
O3
2.30ppb
SO2
13.11ppb
NO2
0.23ppm
CO
AQI 54
Moderate
11.13μg/m³
PM2.5
45.62μg/m³
PM10
23.13ppb
O3
2.02ppb
SO2
12.67ppb
NO2
0.23ppm
CO
AQI 54
Moderate
11.27μg/m³
PM2.5
35.47μg/m³
PM10
23.89ppb
O3
2.35ppb
SO2
13.20ppb
NO2
0.23ppm
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 2026-08-10.
In the last 24 hours, the best air quality in Sidney, Ohio was observed at 02:00:00 on 2026-08-10.
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 9.165 μg/m3.
The PM10 concentration in Sidney, Ohio is 37.79 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Sidney, Ohio is 0.21 ppm.
Currently, Sidney, Ohio has a sulfur dioxide (SO2) concentration of 2.018 ppb.
The current ozone (O3) level in Sidney, Ohio at the moment is 21.997 ppm.
Nitrogen dioxide (NO2) level in Sidney, Ohio at the moment is 10.116 ppb.
All Rights Reserved © Ambee Inc. 2025