Stay updated with real-time air quality in Fairfield, 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)
54
Moderate
Fairfield, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.76 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.37 μg/m³
0
55
155
255
425
605+
17.72 ppb
0
55
71
86
201
201+
1.25 ppb
0
36
76
186
605
1005+
12.32 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Fairfield, Ohio
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AQI 52
Moderate
10.32μg/m³
PM2.5
25.32μg/m³
PM10
18.66ppb
O3
1.23ppb
SO2
12.43ppb
NO2
0.26ppm
CO
AQI 56
Moderate
12.24μg/m³
PM2.5
42.85μg/m³
PM10
26.45ppb
O3
1.46ppb
SO2
12.58ppb
NO2
0.27ppm
CO
AQI 58
Moderate
12.61μg/m³
PM2.5
47.60μg/m³
PM10
28.57ppb
O3
1.50ppb
SO2
12.31ppb
NO2
0.26ppm
CO
AQI 56
Moderate
12.08μg/m³
PM2.5
51.08μg/m³
PM10
24.25ppb
O3
1.47ppb
SO2
14.58ppb
NO2
0.34ppm
CO
AQI 60
Moderate
13.86μg/m³
PM2.5
55.29μg/m³
PM10
30.50ppb
O3
1.63ppb
SO2
14.16ppb
NO2
0.31ppm
CO
AQI 58
Moderate
12.99μg/m³
PM2.5
52.58μg/m³
PM10
26.72ppb
O3
1.56ppb
SO2
14.95ppb
NO2
0.33ppm
CO
Air quality measurements for Ohio, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Fairfield, Ohio is updated on an hourly basis.
The worst air quality in Fairfield, Ohio was recorded at 03:00:00 on 2026-06-08.
The best air quality in Fairfield, Ohio was recorded at 04:00:00 on 2026-06-08.
The real-time air quality index in Fairfield, Ohio is 52, currently categorized as Moderate.
The most common pollutant in Fairfield, Ohio is PM2.5.
If the air quality in Fairfield, Ohio is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Fairfield, Ohio at present are 10.483 μg/m3.
The current PM10 levels in Fairfield, Ohio are 27.955 μg/m3.
The current carbon monoxide (CO) level in Fairfield, Ohio is 0.262 ppm.
The current sulfur dioxide (SO2) levels in Fairfield, Ohio are 1.243 ppb.
The current ozone (O3) levels at Fairfield, Ohio is 19.492 ppm.
The current nitrogen dioxide (NO2) levels at Fairfield, Ohio is 12.294 ppb.
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