Stay updated with real-time air quality in Alliance, 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)
66
Moderate
Alliance, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
17.48 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
63.42 μg/m³
0
55
155
255
425
605+
21.18 ppb
0
55
71
86
201
201+
1.29 ppb
0
36
76
186
605
1005+
7.56 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Alliance, Ohio
Alliance, Ohio
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AQI 58
Moderate
12.83μg/m³
PM2.5
49.67μg/m³
PM10
23.99ppb
O3
1.34ppb
SO2
7.60ppb
NO2
0.17ppm
CO
AQI 66
Moderate
16.80μg/m³
PM2.5
48.41μg/m³
PM10
22.36ppb
O3
1.18ppb
SO2
8.25ppb
NO2
0.19ppm
CO
AQI 64
Moderate
16.43μg/m³
PM2.5
69.34μg/m³
PM10
21.57ppb
O3
1.21ppb
SO2
7.60ppb
NO2
0.19ppm
CO
AQI 67
Moderate
17.54μg/m³
PM2.5
48.75μg/m³
PM10
25.60ppb
O3
1.29ppb
SO2
10.96ppb
NO2
0.19ppm
CO
AQI 64
Moderate
16.27μg/m³
PM2.5
46.73μg/m³
PM10
21.43ppb
O3
1.19ppb
SO2
8.07ppb
NO2
0.19ppm
CO
AQI 67
Moderate
17.55μg/m³
PM2.5
54.99μg/m³
PM10
25.62ppb
O3
1.20ppb
SO2
11.10ppb
NO2
0.19ppm
CO
The air quality data for Ohio, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Alliance, Ohio are available every hour.
Alliance, Ohio experienced its worst air quality at 04:00:00, 2025-12-07.
The best air quality in Alliance, Ohio was observed at 05:00:00 on 2025-12-07.
The air quality in Alliance, Ohio right now is Moderate, with an AQI of 66.
In Alliance, Ohio, PM2.5 is the most frequently found pollutant.
When air quality in Alliance, Ohio is compromised, staying indoors and wearing a mask can reduce health risks.
Alliance, Ohio currently has a PM2.5 concentration of 17.48 μg/m3.
Alliance, Ohio currently has a PM10 concentration of 63.417 μg/m3.
The current carbon monoxide (CO) level in Alliance, Ohio is 0.185 ppm.
The current sulfur dioxide (SO2) concentration in Alliance, Ohio is 1.29 ppb.
Alliance, Ohio currently has an ozone (O3) concentration of 21.176 ppm.
The current level of nitrogen dioxide (NO2) in Alliance, Ohio is 7.557 ppb.
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