The highest AQ index in South Carolina (as of 18:00 EDT) is currently the York, Chester, and Lancaster area. Ozone (OZONE) is measuring at 71 (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.
While the Upstate is currently trending yellow, all other regions are staying comfortably in the green for Wednesday. For Thursday, any wind will die off and leave most regions in stagnation. This provides optimal conditions for ozone to form as locally produced pollutants will not have a mechanism to move out of the area or get diluted from dispersion, and will thus increase concentrations. This will get counteracted by some cleaner influx from the maritime airmass for the eastern half of SC. Overall, the Catawba and Upstate regions will likely be CODE YELLOW while other regions should be CODE GREEN.
| 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 7 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.