Stay updated with real-time air quality in Greer, South Carolina 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)
27
Good
Greer, South Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.35 μg/m³
0
55
155
255
425
605+
25.29 ppb
0
55
71
86
201
201+
0.19 ppb
0
36
76
186
605
1005+
2.79 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Greer, South Carolina
Greer, South Carolina
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AQI 27
Good
5.49μg/m³
PM2.5
15.04μg/m³
PM10
24.67ppb
O3
0.19ppb
SO2
2.40ppb
NO2
0.16ppm
CO
AQI 27
Good
5.36μg/m³
PM2.5
12.95μg/m³
PM10
24.16ppb
O3
0.20ppb
SO2
2.24ppb
NO2
0.16ppm
CO
AQI 33
Good
5.52μg/m³
PM2.5
18.19μg/m³
PM10
25.82ppb
O3
0.20ppb
SO2
2.60ppb
NO2
0.16ppm
CO
AQI 27
Good
5.21μg/m³
PM2.5
10.25μg/m³
PM10
23.53ppb
O3
0.20ppb
SO2
2.02ppb
NO2
0.16ppm
CO
AQI 27
Good
5.49μg/m³
PM2.5
17.48μg/m³
PM10
25.60ppb
O3
0.20ppb
SO2
2.55ppb
NO2
0.16ppm
CO
AQI 27
Good
5.27μg/m³
PM2.5
11.26μg/m³
PM10
23.71ppb
O3
0.20ppb
SO2
2.12ppb
NO2
0.16ppm
CO
Air quality measurements for South Carolina, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Greer, South Carolina is updated on an hourly basis.
The worst air quality in Greer, South Carolina was recorded at 08:00:00 on 2026-09-06.
The best air quality in Greer, South Carolina was recorded at 06:00:00 on 2026-09-07.
The real-time air quality index in Greer, South Carolina is 27, currently categorized as Good.
The most common pollutant in Greer, South Carolina is PM2.5.
If the air quality in Greer, South Carolina is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Greer, South Carolina at present are 5.082 μg/m3.
The current PM10 levels in Greer, South Carolina are 19.349 μg/m3.
The current carbon monoxide (CO) level in Greer, South Carolina is 0.187 ppm.
The current sulfur dioxide (SO2) levels in Greer, South Carolina are 0.188 ppb.
The current ozone (O3) levels at Greer, South Carolina is 25.293 ppm.
The current nitrogen dioxide (NO2) levels at Greer, South Carolina is 2.786 ppb.
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