Stay updated with real-time air quality in Charleston, 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
Charleston, South Carolina
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.79 μg/m³
0
55
155
255
425
605+
19.36 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
12.03 ppb
0
54
101
361
1250
2050+
0.35 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Charleston, South Carolina
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AQI 40
Good
6.64μg/m³
PM2.5
20.36μg/m³
PM10
43.46ppb
O3
0.19ppb
SO2
2.95ppb
NO2
0.20ppm
CO
AQI 40
Good
6.51μg/m³
PM2.5
22.09μg/m³
PM10
42.65ppb
O3
0.30ppb
SO2
2.92ppb
NO2
0.21ppm
CO
AQI 41
Good
6.80μg/m³
PM2.5
22.54μg/m³
PM10
43.52ppb
O3
0.15ppb
SO2
2.98ppb
NO2
0.20ppm
CO
AQI 40
Good
6.94μg/m³
PM2.5
25.81μg/m³
PM10
43.19ppb
O3
0.15ppb
SO2
2.98ppb
NO2
0.20ppm
CO
AQI 40
Good
7.16μg/m³
PM2.5
30.52μg/m³
PM10
42.78ppb
O3
0.23ppb
SO2
2.93ppb
NO2
0.20ppm
CO
AQI 39
Good
7.28μg/m³
PM2.5
31.51μg/m³
PM10
41.92ppb
O3
0.30ppb
SO2
2.89ppb
NO2
0.20ppm
CO
Air quality data and pollutant measurements for South Carolina, 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 Charleston, South Carolina is updated every hour.
The worst air quality in Charleston, South Carolina in the last 24 hours was observed at 11:00:00 on 2025-08-31.
In the last 24 hrs, the best air quality in Charleston, South Carolina was observed at 11:00:00 on 2025-08-30.
The current air quality in Charleston, South Carolina is 38, categorized as Good based on real-time data.
The most common pollutant in Charleston, South Carolina is PM2.5.
If the air quality in Charleston, South Carolina is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Charleston, South Carolina is 6.784 μg/m3.
The current PM10 concentration at Charleston, South Carolina is 15.707 μg/m3.
The current carbon monoxide (CO) concentration at Charleston, South Carolina is 0.204 ppm.
The current sulfur dioxide (SO2) concentration at Charleston, South Carolina is 0.232 ppb.
The current ozone (O3) concentration at Charleston, South Carolina is 40.419 ppm.
The current nitrogen dioxide (NO2) concentration at Charleston, South Carolina is 3.001 ppb.
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