AQI 45 · Ozone · Trend: Stable
| Average AQI | 45 |
| Good Days / Year | 235 |
| Unhealthy Days / Year | 6 |
| Primary Pollutant | Ozone |
| PM2.5 Average | 7.8 µg/m³ |
| Trend | → Stable |
| Monitoring Stations | 22 |
| Nonattainment Areas | 0 |
South Carolina has generally good air quality. The Upstate manufacturing corridor around Greenville is well-regulated. Coastal communities like Charleston benefit from ocean breezes. The state has attracted significant automotive manufacturing investment.
SC DHEC Bureau of Air Quality manages standards. Vehicle emissions testing in some counties.
No current nonattainment areas. South Carolina generally meets federal air quality standards.