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)
33
Good
Greenville, Ohio
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.33 μg/m³
0
55
155
255
425
605+
18.34 ppb
0
55
71
86
201
201+
1.11 ppb
0
36
76
186
605
1005+
8.93 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Greenville, Ohio
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AQI 38
Good
7.09μg/m³
PM2.5
24.76μg/m³
PM10
23.27ppb
O3
1.33ppb
SO2
8.38ppb
NO2
0.22ppm
CO
AQI 33
Good
6.50μg/m³
PM2.5
29.45μg/m³
PM10
17.41ppb
O3
1.21ppb
SO2
8.88ppb
NO2
0.22ppm
CO
AQI 33
Good
6.17μg/m³
PM2.5
23.15μg/m³
PM10
22.42ppb
O3
1.29ppb
SO2
8.44ppb
NO2
0.23ppm
CO
AQI 33
Good
5.85μg/m³
PM2.5
13.86μg/m³
PM10
19.95ppb
O3
1.25ppb
SO2
8.37ppb
NO2
0.19ppm
CO
AQI 33
Good
6.47μg/m³
PM2.5
29.10μg/m³
PM10
18.59ppb
O3
1.23ppb
SO2
8.79ppb
NO2
0.22ppm
CO
AQI 33
Good
6.05μg/m³
PM2.5
23.83μg/m³
PM10
18.98ppb
O3
1.26ppb
SO2
8.52ppb
NO2
0.23ppm
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 03:00:00 on 2025-08-31.
In the last 24 hrs, the best air quality in Greenville, Ohio was observed at 10:00:00 on 2025-08-30.
The current air quality in Greenville, Ohio is 27, categorized as Good 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 4.687 μg/m3.
The current PM10 concentration at Greenville, Ohio is 18.709 μg/m3.
The current carbon monoxide (CO) concentration at Greenville, Ohio is 0.18 ppm.
The current sulfur dioxide (SO2) concentration at Greenville, Ohio is 1.295 ppb.
The current ozone (O3) concentration at Greenville, Ohio is 21.905 ppm.
The current nitrogen dioxide (NO2) concentration at Greenville, Ohio is 5.171 ppb.
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