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)
33
Good
Greer, South Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.76 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.08 μg/m³
0
55
155
255
425
605+
13.03 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
16.89 ppb
0
54
101
361
1250
2050+
0.43 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Greer, South Carolina
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AQI 33
Good
5.89μg/m³
PM2.5
15.31μg/m³
PM10
12.55ppb
O3
0.17ppb
SO2
25.07ppb
NO2
0.28ppm
CO
AQI 33
Good
5.90μg/m³
PM2.5
13.43μg/m³
PM10
11.96ppb
O3
0.14ppb
SO2
26.17ppb
NO2
0.28ppm
CO
AQI 33
Good
5.94μg/m³
PM2.5
23.18μg/m³
PM10
13.83ppb
O3
0.23ppb
SO2
22.08ppb
NO2
0.28ppm
CO
AQI 33
Good
5.90μg/m³
PM2.5
10.32μg/m³
PM10
11.15ppb
O3
0.10ppb
SO2
27.83ppb
NO2
0.28ppm
CO
AQI 33
Good
5.93μg/m³
PM2.5
22.10μg/m³
PM10
13.60ppb
O3
0.22ppb
SO2
22.55ppb
NO2
0.28ppm
CO
AQI 33
Good
5.89μg/m³
PM2.5
11.48μg/m³
PM10
11.45ppb
O3
0.12ppb
SO2
27.14ppb
NO2
0.28ppm
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 10:00:00 on 2026-03-12.
The best air quality in Greer, South Carolina was recorded at 05:00:00 on 2026-03-13.
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 5.075 μg/m3.
The current PM10 levels in Greer, South Carolina are 11.435 μg/m3.
The current carbon monoxide (CO) level in Greer, South Carolina is 0.259 ppm.
The current sulfur dioxide (SO2) levels in Greer, South Carolina are 0.261 ppb.
The current ozone (O3) levels at Greer, South Carolina is 11.013 ppm.
The current nitrogen dioxide (NO2) levels at Greer, South Carolina is 15.409 ppb.
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