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)
82
Moderate
Dayton, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
25.78 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
35.03 μg/m³
0
55
155
255
425
605+
39.75 ppb
0
55
71
86
201
201+
1.41 ppb
0
36
76
186
605
1005+
8.76 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Dayton, Ohio
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AQI 38
Good
7.09μg/m³
PM2.5
14.54μg/m³
PM10
21.81ppb
O3
1.79ppb
SO2
8.29ppb
NO2
0.21ppm
CO
AQI 38
Good
6.96μg/m³
PM2.5
14.91μg/m³
PM10
21.64ppb
O3
1.78ppb
SO2
8.30ppb
NO2
0.21ppm
CO
AQI 38
Good
6.83μg/m³
PM2.5
15.69μg/m³
PM10
21.65ppb
O3
1.85ppb
SO2
8.39ppb
NO2
0.22ppm
CO
AQI 38
Good
6.68μg/m³
PM2.5
18.95μg/m³
PM10
21.57ppb
O3
2.08ppb
SO2
8.80ppb
NO2
0.22ppm
CO
AQI 38
Good
6.61μg/m³
PM2.5
17.14μg/m³
PM10
19.70ppb
O3
1.71ppb
SO2
8.07ppb
NO2
0.22ppm
CO
AQI 27
Good
5.15μg/m³
PM2.5
15.91μg/m³
PM10
21.64ppb
O3
1.69ppb
SO2
8.38ppb
NO2
0.20ppm
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 04:00:00 on 2025-07-20.
In the last 24 hrs, the best air quality in Dayton, Ohio was observed at 05:00:00 on 2025-07-21.
The current air quality in Dayton, Ohio is 44, categorized as Good 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 8 μg/m3.
The current PM10 concentration at Dayton, Ohio is 14.06 μg/m3.
The current carbon monoxide (CO) concentration at Dayton, Ohio is 0.23 ppm.
The current sulfur dioxide (SO2) concentration at Dayton, Ohio is 4.106 ppb.
The current ozone (O3) concentration at Dayton, Ohio is 23.666 ppm.
The current nitrogen dioxide (NO2) concentration at Dayton, Ohio is 7.186 ppb.
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