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)
33
Good
Dayton, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
3.40 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.00 μg/m³
0
55
155
255
425
605+
35.51 ppb
0
55
71
86
201
201+
2.80 ppb
0
36
76
186
605
1005+
4.56 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Dayton, Ohio
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AQI 30
Good
3.50μg/m³
PM2.5
13.21μg/m³
PM10
32.18ppb
O3
2.43ppb
SO2
3.44ppb
NO2
0.15ppm
CO
AQI 30
Good
3.50μg/m³
PM2.5
13.33μg/m³
PM10
32.12ppb
O3
2.41ppb
SO2
3.45ppb
NO2
0.15ppm
CO
AQI 30
Good
3.53μg/m³
PM2.5
13.64μg/m³
PM10
32.46ppb
O3
2.46ppb
SO2
3.44ppb
NO2
0.15ppm
CO
AQI 31
Good
3.53μg/m³
PM2.5
14.17μg/m³
PM10
33.40ppb
O3
2.84ppb
SO2
3.37ppb
NO2
0.15ppm
CO
AQI 29
Good
3.48μg/m³
PM2.5
13.94μg/m³
PM10
31.06ppb
O3
2.28ppb
SO2
3.52ppb
NO2
0.15ppm
CO
AQI 31
Good
3.57μg/m³
PM2.5
13.45μg/m³
PM10
33.00ppb
O3
2.44ppb
SO2
3.39ppb
NO2
0.15ppm
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 2025-10-21.
In the last 24 hrs, the best air quality in Dayton, Ohio was observed at 04:00:00 on 2025-10-21.
The current air quality in Dayton, Ohio is 33, categorized as Good 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 3.4 μg/m3.
The current PM10 concentration at Dayton, Ohio is 12.003 μg/m3.
The current carbon monoxide (CO) concentration at Dayton, Ohio is 0.167 ppm.
The current sulfur dioxide (SO2) concentration at Dayton, Ohio is 2.797 ppb.
The current ozone (O3) concentration at Dayton, Ohio is 35.511 ppm.
The current nitrogen dioxide (NO2) concentration at Dayton, Ohio is 4.56 ppb.
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