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)
56
Moderate
Greer, South Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
40.29 μg/m³
0
55
155
255
425
605+
15.04 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
7.86 ppb
0
54
101
361
1250
2050+
0.17 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 52
Moderate
10.19μg/m³
PM2.5
26.93μg/m³
PM10
19.31ppb
O3
0.64ppb
SO2
4.14ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.67μg/m³
PM2.5
22.80μg/m³
PM10
17.51ppb
O3
0.64ppb
SO2
3.65ppb
NO2
0.23ppm
CO
AQI 54
Moderate
10.74μg/m³
PM2.5
32.68μg/m³
PM10
29.14ppb
O3
0.64ppb
SO2
4.49ppb
NO2
0.23ppm
CO
AQI 49
Good
9.05μg/m³
PM2.5
17.49μg/m³
PM10
14.39ppb
O3
0.64ppb
SO2
3.05ppb
NO2
0.23ppm
CO
AQI 54
Moderate
10.57μg/m³
PM2.5
31.30μg/m³
PM10
27.89ppb
O3
0.64ppb
SO2
4.36ppb
NO2
0.23ppm
CO
AQI 49
Good
9.26μg/m³
PM2.5
19.47μg/m³
PM10
15.45ppb
O3
0.64ppb
SO2
3.29ppb
NO2
0.23ppm
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 02:00:00 on 2026-06-07.
The best air quality in Greer, South Carolina was recorded at 01:00:00 on 2026-06-08.
The real-time air quality index in Greer, South Carolina is 56, currently categorized as Moderate.
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 11.652 μg/m3.
The current PM10 levels in Greer, South Carolina are 34.152 μg/m3.
The current carbon monoxide (CO) level in Greer, South Carolina is 0.191 ppm.
The current sulfur dioxide (SO2) levels in Greer, South Carolina are 0.597 ppb.
The current ozone (O3) levels at Greer, South Carolina is 13.156 ppm.
The current nitrogen dioxide (NO2) levels at Greer, South Carolina is 6.336 ppb.
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