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)
64
Moderate
Charleston, South Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
15.76 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
56.47 μg/m³
0
55
155
255
425
605+
29.24 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
2.32 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Charleston, South Carolina
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AQI 62
Moderate
15.32μg/m³
PM2.5
56.63μg/m³
PM10
28.96ppb
O3
0.59ppb
SO2
2.45ppb
NO2
0.20ppm
CO
AQI 52
Moderate
10.30μg/m³
PM2.5
33.38μg/m³
PM10
28.50ppb
O3
0.59ppb
SO2
2.89ppb
NO2
0.20ppm
CO
AQI 64
Moderate
15.63μg/m³
PM2.5
59.20μg/m³
PM10
28.92ppb
O3
0.60ppb
SO2
2.23ppb
NO2
0.20ppm
CO
AQI 62
Moderate
15.20μg/m³
PM2.5
59.96μg/m³
PM10
29.46ppb
O3
0.60ppb
SO2
2.24ppb
NO2
0.20ppm
CO
AQI 62
Moderate
15.02μg/m³
PM2.5
63.56μg/m³
PM10
29.75ppb
O3
0.59ppb
SO2
2.71ppb
NO2
0.20ppm
CO
AQI 62
Moderate
14.97μg/m³
PM2.5
57.62μg/m³
PM10
27.57ppb
O3
0.58ppb
SO2
3.10ppb
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 08:00:00 on 2026-07-23.
In the last 24 hrs, the best air quality in Charleston, South Carolina was observed at 09:00:00 on 2026-07-23.
The current air quality in Charleston, South Carolina is 64, categorized as Moderate 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 15.758 μg/m3.
The current PM10 concentration at Charleston, South Carolina is 56.467 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 0.596 ppb.
The current ozone (O3) concentration at Charleston, South Carolina is 29.238 ppm.
The current nitrogen dioxide (NO2) concentration at Charleston, South Carolina is 2.32 ppb.
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