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
8.57 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.23 μg/m³
0
55
155
255
425
605+
10.38 ppb
0
55
71
86
201
201+
0.56 ppb
0
36
76
186
605
1005+
6.62 ppb
0
54
101
361
1250
2050+
0.32 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Charleston, South Carolina
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AQI 44
Good
8.44μg/m³
PM2.5
20.95μg/m³
PM10
10.70ppb
O3
0.56ppb
SO2
6.57ppb
NO2
0.32ppm
CO
AQI 44
Good
7.63μg/m³
PM2.5
25.40μg/m³
PM10
11.49ppb
O3
0.51ppb
SO2
6.59ppb
NO2
0.32ppm
CO
AQI 44
Good
8.33μg/m³
PM2.5
23.17μg/m³
PM10
10.68ppb
O3
0.58ppb
SO2
6.77ppb
NO2
0.32ppm
CO
AQI 44
Good
8.15μg/m³
PM2.5
28.08μg/m³
PM10
10.98ppb
O3
0.58ppb
SO2
6.83ppb
NO2
0.32ppm
CO
AQI 44
Good
7.94μg/m³
PM2.5
25.60μg/m³
PM10
9.90ppb
O3
0.53ppb
SO2
5.82ppb
NO2
0.32ppm
CO
AQI 44
Good
8.19μg/m³
PM2.5
18.54μg/m³
PM10
10.01ppb
O3
0.49ppb
SO2
5.80ppb
NO2
0.32ppm
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 08:00:00 on 2025-12-07.
In the last 24 hrs, the best air quality in Charleston, South Carolina was observed at 11:00:00 on 2025-12-06.
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 8.567 μg/m3.
The current PM10 concentration at Charleston, South Carolina is 17.234 μg/m3.
The current carbon monoxide (CO) concentration at Charleston, South Carolina is 0.319 ppm.
The current sulfur dioxide (SO2) concentration at Charleston, South Carolina is 0.565 ppb.
The current ozone (O3) concentration at Charleston, South Carolina is 10.376 ppm.
The current nitrogen dioxide (NO2) concentration at Charleston, South Carolina is 6.623 ppb.
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