Stay updated with real-time air quality in Dayton, 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)
86
Moderate
Dayton, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
27.80 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
36.07 μg/m³
0
55
155
255
425
605+
11.05 ppb
0
55
71
86
201
201+
1.10 ppb
0
36
76
186
605
1005+
10.61 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Dayton, Ohio
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AQI 86
Moderate
27.72μg/m³
PM2.5
39.48μg/m³
PM10
10.99ppb
O3
1.10ppb
SO2
10.64ppb
NO2
0.25ppm
CO
AQI 86
Moderate
27.77μg/m³
PM2.5
42.80μg/m³
PM10
10.78ppb
O3
1.09ppb
SO2
10.73ppb
NO2
0.25ppm
CO
AQI 86
Moderate
27.75μg/m³
PM2.5
49.14μg/m³
PM10
10.51ppb
O3
1.08ppb
SO2
10.85ppb
NO2
0.25ppm
CO
AQI 86
Moderate
27.71μg/m³
PM2.5
60.79μg/m³
PM10
10.02ppb
O3
1.05ppb
SO2
11.08ppb
NO2
0.25ppm
CO
AQI 84
Moderate
27.31μg/m³
PM2.5
50.36μg/m³
PM10
11.04ppb
O3
1.09ppb
SO2
10.63ppb
NO2
0.25ppm
CO
AQI 84
Moderate
26.64μg/m³
PM2.5
41.72μg/m³
PM10
10.56ppb
O3
1.04ppb
SO2
10.58ppb
NO2
0.24ppm
CO
Air quality data and pollutant measurements for Ohio, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Dayton, Ohio is updated every hour.
The worst air quality in Dayton, Ohio in the last 24 hours was observed at 03:00:00 on 2025-12-07.
In the last 24 hrs, the best air quality in Dayton, Ohio was observed at 05:00:00 on 2025-12-06.
The current air quality in Dayton, Ohio is 86, categorized as Moderate based on real-time data.
The most common pollutant in Dayton, Ohio is PM2.5.
If the air quality in Dayton, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Dayton, Ohio is 27.8 μg/m3.
The current PM10 concentration at Dayton, Ohio is 36.069 μg/m3.
The current carbon monoxide (CO) concentration at Dayton, Ohio is 0.247 ppm.
The current sulfur dioxide (SO2) concentration at Dayton, Ohio is 1.102 ppb.
The current ozone (O3) concentration at Dayton, Ohio is 11.047 ppm.
The current nitrogen dioxide (NO2) concentration at Dayton, Ohio is 10.612 ppb.
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