For 5/23/2024
[ The forecast is updated daily by 3:30 pm EDT. ]
As of the mid-afternoon hours on Wednesday, ground level ozone concentrations were trending toward peaks in the Yellow category for all inland zones. Only the Coastal region appeared to be on track to finish Green for the day. A weak ridge of high pressure will move farther off the Southeast coast on Thursday. Temperature and humidity levels won't change much, but cleaner air will begin to enter the region from the south. The Upstate region is still expected to see peaks in the yellow category on Thursday, but the remaining zones are predicted to have peaks in the Green category.
| County * |
Color Code |
AQI |
| Abbeville |
Moderate (Yellow) |
61 |
| Aiken |
Good (Green) |
47 |
| Anderson |
Moderate (Yellow) |
61 |
| Barnwell |
Good (Green) |
47 |
| Berkeley |
Good (Green) |
46 |
| Calhoun |
Good (Green) |
50 |
| Charleston |
Good (Green) |
46 |
| Cherokee |
Moderate (Yellow) |
61 |
| Chester |
Good (Green) |
50 |
| Chesterfield |
Good (Green) |
46 |
| Darlington |
Good (Green) |
46 |
| Dillon |
Good (Green) |
46 |
| Dorchester |
Good (Green) |
46 |
| Edgefield |
Good (Green) |
47 |
| Fairfield |
Good (Green) |
50 |
| Florence |
Good (Green) |
46 |
| Greenville |
Moderate (Yellow) |
61 |
| Greenwood |
Moderate (Yellow) |
61 |
| Kershaw |
Good (Green) |
50 |
| Lancaster |
Good (Green) |
50 |
| Laurens |
Moderate (Yellow) |
61 |
| Lee |
Good (Green) |
46 |
| Lexington |
Good (Green) |
50 |
| Marlboro |
Good (Green) |
46 |
| McCormick |
Good (Green) |
47 |
| Newberry |
Good (Green) |
50 |
| Oconee |
Moderate (Yellow) |
61 |
| Pickens |
Moderate (Yellow) |
61 |
| Richland |
Good (Green) |
50 |
| Saluda |
Good (Green) |
50 |
| Spartanburg |
Moderate (Yellow) |
61 |
| Sumter |
Good (Green) |
50 |
| Union |
Moderate (Yellow) |
61 |
| York |
Good (Green) |
50 |
| GA-Columbia |
Good (Green) |
47 |
| GA-Richmond |
Good (Green) |
47 |
| * Ozone forecasts are not issued for counties not listed in this table.
|
| AQI Color Code (Value) |
Cautionary Statement |
|
Good
(0-50)
|
No health effects are expected.
|
|
Moderate
(51-100)
|
Unusually sensitive people should consider limiting prolonged outdoor exertion.
|
|
Unhealthy for Sensitive Groups
(101-150)
|
The following groups should limit prolonged outdoor exertion:
- People with lung disease, such as asthma
- Children and older adults
- People who are active outdoors
|
|
Unhealthy
(151-200)
|
The following groups should avoid prolonged outdoor exertion:
- People with lung disease, such as asthma
- Children and older adults
- People who are active outdoors
Everyone else should limit prolonged outdoor exertion.
|
|
Very Unhealthy
(200+)
|
The following groups should avoid all outdoor exertion:
- People with lung disease, such as asthma
- Children and older adults
- People who are active outdoors
Everyone else should limit outdoor exertion.
|
