Stay updated with real-time air quality in Greenville, 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)
62
Moderate
Greenville, Ohio
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
58.05 μg/m³
0
55
155
255
425
605+
36.25 ppb
0
55
71
86
201
201+
2.94 ppb
0
36
76
186
605
1005+
4.55 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Greenville, Ohio
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AQI 58
Moderate
12.59μg/m³
PM2.5
51.36μg/m³
PM10
19.36ppb
O3
1.89ppb
SO2
7.30ppb
NO2
0.21ppm
CO
AQI 60
Moderate
13.94μg/m³
PM2.5
32.82μg/m³
PM10
20.00ppb
O3
1.99ppb
SO2
7.51ppb
NO2
0.21ppm
CO
AQI 56
Moderate
12.20μg/m³
PM2.5
46.68μg/m³
PM10
20.53ppb
O3
1.90ppb
SO2
7.31ppb
NO2
0.21ppm
CO
AQI 58
Moderate
12.52μg/m³
PM2.5
36.98μg/m³
PM10
24.37ppb
O3
1.93ppb
SO2
8.29ppb
NO2
0.21ppm
CO
AQI 60
Moderate
13.67μg/m³
PM2.5
33.11μg/m³
PM10
18.39ppb
O3
1.98ppb
SO2
7.47ppb
NO2
0.21ppm
CO
AQI 56
Moderate
12.27μg/m³
PM2.5
50.24μg/m³
PM10
18.39ppb
O3
1.97ppb
SO2
7.38ppb
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 Greenville, Ohio is updated every hour.
The worst air quality in Greenville, Ohio in the last 24 hours was observed at 01:00:00 on 2026-08-08.
In the last 24 hrs, the best air quality in Greenville, Ohio was observed at 07:00:00 on 2026-08-08.
The current air quality in Greenville, Ohio is 60, categorized as Moderate based on real-time data.
The most common pollutant in Greenville, Ohio is PM2.5.
If the air quality in Greenville, Ohio is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Greenville, Ohio is 14.327 μg/m3.
The current PM10 concentration at Greenville, Ohio is 36.366 μg/m3.
The current carbon monoxide (CO) concentration at Greenville, Ohio is 0.206 ppm.
The current sulfur dioxide (SO2) concentration at Greenville, Ohio is 1.86 ppb.
The current ozone (O3) concentration at Greenville, Ohio is 24.273 ppm.
The current nitrogen dioxide (NO2) concentration at Greenville, Ohio is 6.424 ppb.
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