Charleston Air Quality Index (AQI) and Air Pollution
The Charleston Air Quality Index (AQI) today is 49 (Good). The dominant pollutant is O3. Other measured pollutants include NO₂ (1.3 ppb), SO₂ (0.7 ppb), CO (0.126 ppm), O₃ (0.053 ppm), PM10 (10.3µg/m³), PM2.5 (8.2 µg/m³), contributing to air pollution.
Live AQI
49(US-AQI)
Air Quality is
Good
Main Pollutant: O3
Last updated: just now
Good
Moderate
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Unhealthy
Severe
Hazardous
0
50
100
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300301+

13°C
70%
11 Km/h
Major Pollutants Charleston
PM2.5
Good8.2 µg/m³
PM10
Good10.3 µg/m³
O₃
Good0.053 ppm
CO
Good0.126 ppm
NO₂
Good1.3 ppb
SO₂
Good0.7 ppb
In Charleston, the main air pollutant is O3. It mostly comes from Ozone forms when sunlight reacts with gases from vehicles and industries. It can irritate the lungs and throat and make it difficult to breathe especially for people with asthma. To stay safe, Try to avoid outdoor exercise during afternoon hours when ozone levels are usually high.