Region (Counties) AQI Value AQI Color
Upstate
(Anderson, Abbeville, Cherokee, Greenville, Laurens, Oconee, Pickens, Spartanburg, Union)
48
Catawba
(Chester, Lancaster, York)
46
Pee Dee
(Chesterfield, Darlington, Dillon, Florence, Lee, Marlboro)
42
Midlands
(Calhoun, Kershaw, Lexington, Newberry, Richland, Saluda, Sumter)
47
Central Savannah River
(Aiken, Barnwell, Columbia(Georgia), Edgefield, McCormick, Richmond(Georgia))
46
Trident
(Berkeley, Charleston, Dorchester)
42