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)
74
Moderate
Dayton, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
13.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
29.03 μg/m³
0
55
155
255
425
605+
61.83 ppb
0
55
71
86
201
201+
1.36 ppb
0
36
76
186
605
1005+
7.69 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Dayton, Ohio
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AQI 74
Moderate
13.17μg/m³
PM2.5
30.60μg/m³
PM10
61.83ppb
O3
1.36ppb
SO2
7.72ppb
NO2
0.22ppm
CO
AQI 74
Moderate
13.05μg/m³
PM2.5
31.42μg/m³
PM10
61.64ppb
O3
1.35ppb
SO2
7.72ppb
NO2
0.22ppm
CO
AQI 74
Moderate
13.11μg/m³
PM2.5
33.22μg/m³
PM10
62.21ppb
O3
1.35ppb
SO2
7.61ppb
NO2
0.21ppm
CO
AQI 74
Moderate
13.74μg/m³
PM2.5
40.79μg/m³
PM10
62.22ppb
O3
1.24ppb
SO2
7.04ppb
NO2
0.21ppm
CO
AQI 71
Moderate
12.26μg/m³
PM2.5
36.23μg/m³
PM10
61.24ppb
O3
1.39ppb
SO2
7.96ppb
NO2
0.22ppm
CO
AQI 71
Moderate
12.68μg/m³
PM2.5
31.74μg/m³
PM10
61.49ppb
O3
1.36ppb
SO2
6.96ppb
NO2
0.21ppm
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 12:00:00 on 2026-04-24.
In the last 24 hrs, the best air quality in Dayton, Ohio was observed at 08:00:00 on 2026-04-23.
The current air quality in Dayton, Ohio is 74, categorized as Moderate based on real-time data.
The most common pollutant in Dayton, Ohio is O3.
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 13.398 μg/m3.
The current PM10 concentration at Dayton, Ohio is 29.026 μg/m3.
The current carbon monoxide (CO) concentration at Dayton, Ohio is 0.215 ppm.
The current sulfur dioxide (SO2) concentration at Dayton, Ohio is 1.356 ppb.
The current ozone (O3) concentration at Dayton, Ohio is 61.831 ppm.
The current nitrogen dioxide (NO2) concentration at Dayton, Ohio is 7.693 ppb.
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