The highest AQ index in South Carolina (as of 16:00 EDT) is currently the Charleston area. Particle Pollution (PM2.5) is measuring at 52 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Over the next few days, the highest Ozone (OZONE) will be in the Greenville-Spartanburg area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
As of Monday mid-afternoon, the Upstate is trending Code Yellow for ground-level ozone concentration while the remaining forecast zones are trending Code Green for the rest of the day. The upper-level trough currently over South Carolina will weaken as the surface high pressure builds, resulting in warmer conditions while maintaining a dry air mass. Abundant sunshine is probable in addition to a stable atmosphere. Temperatures are forecast to rise to slightly above normal levels with highs in the 80s and lows in the low to mid-60s. Winds are expected to either be calm or light and variable statewide, which would allow ozone pollutants to pool in their originating location. Considering how dry and stagnant the air mass would be, the lack of dispersion has the potential to be the most crucial factor toward significant ozone production. Therefore, the ozone forecast for Tuesday projects all forecast zones to peak at CODE YELLOW.
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
Last Updated 26 minutes ago
Below is a list of counties in South Carolina. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.