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)
49
Good
Charleston, South Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.99 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
33.62 μg/m³
0
55
155
255
425
605+
25.79 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
26.85 ppb
0
54
101
361
1250
2050+
0.45 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Charleston, South Carolina
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AQI 49
Good
8.94μg/m³
PM2.5
33.82μg/m³
PM10
25.55ppb
O3
0.25ppb
SO2
25.75ppb
NO2
0.45ppm
CO
AQI 54
Moderate
10.99μg/m³
PM2.5
44.23μg/m³
PM10
20.92ppb
O3
0.28ppb
SO2
26.98ppb
NO2
0.46ppm
CO
AQI 52
Moderate
9.56μg/m³
PM2.5
35.66μg/m³
PM10
25.29ppb
O3
0.23ppb
SO2
27.81ppb
NO2
0.45ppm
CO
AQI 52
Moderate
9.85μg/m³
PM2.5
36.87μg/m³
PM10
24.90ppb
O3
0.22ppb
SO2
27.80ppb
NO2
0.45ppm
CO
AQI 53
Moderate
10.27μg/m³
PM2.5
60.32μg/m³
PM10
28.20ppb
O3
0.30ppb
SO2
11.86ppb
NO2
0.45ppm
CO
AQI 58
Moderate
13.24μg/m³
PM2.5
44.48μg/m³
PM10
21.20ppb
O3
0.33ppb
SO2
12.73ppb
NO2
0.44ppm
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 03:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Charleston, South Carolina was observed at 06:00:00 on 2026-01-22.
The current air quality in Charleston, South Carolina is 49, 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 8.99 μg/m3.
The current PM10 concentration at Charleston, South Carolina is 33.617 μg/m3.
The current carbon monoxide (CO) concentration at Charleston, South Carolina is 0.45 ppm.
The current sulfur dioxide (SO2) concentration at Charleston, South Carolina is 0.245 ppb.
The current ozone (O3) concentration at Charleston, South Carolina is 25.794 ppm.
The current nitrogen dioxide (NO2) concentration at Charleston, South Carolina is 26.847 ppb.
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