For 9/18/2021
[ The forecast is updated daily by 3:30 pm EDT. ]
Ground level ozone concentrations remain in the green category on this Friday afternoon as a tropical airmass remains in place across the region. Very little changes as we head to Saturday as large-scale features move little and low level winds also move little. Even with light and variable winds and only a slight chance of precipitation statewide, ozone will struggle to recover from the cleansing from recent days within a continued tropical airmass. Thus, all zones are expected to remain Code GREEN on Saturday.
| County * |
Color Code |
AQI |
| Abbeville |
Good (Green) |
45 |
| Aiken |
Good (Green) |
32 |
| Anderson |
Good (Green) |
45 |
| Barnwell |
Good (Green) |
32 |
| Berkeley |
Good (Green) |
32 |
| Calhoun |
Good (Green) |
35 |
| Charleston |
Good (Green) |
32 |
| Cherokee |
Good (Green) |
45 |
| Chester |
Good (Green) |
42 |
| Chesterfield |
Good (Green) |
32 |
| Darlington |
Good (Green) |
32 |
| Dillon |
Good (Green) |
32 |
| Dorchester |
Good (Green) |
32 |
| Edgefield |
Good (Green) |
32 |
| Fairfield |
Good (Green) |
35 |
| Florence |
Good (Green) |
32 |
| Greenville |
Good (Green) |
45 |
| Greenwood |
Good (Green) |
45 |
| Kershaw |
Good (Green) |
35 |
| Lancaster |
Good (Green) |
42 |
| Laurens |
Good (Green) |
45 |
| Lee |
Good (Green) |
32 |
| Lexington |
Good (Green) |
35 |
| Marlboro |
Good (Green) |
32 |
| McCormick |
Good (Green) |
32 |
| Newberry |
Good (Green) |
35 |
| Oconee |
Good (Green) |
45 |
| Pickens |
Good (Green) |
45 |
| Richland |
Good (Green) |
35 |
| Saluda |
Good (Green) |
35 |
| Spartanburg |
Good (Green) |
45 |
| Sumter |
Good (Green) |
35 |
| Union |
Good (Green) |
45 |
| York |
Good (Green) |
42 |
| GA-Columbia |
Good (Green) |
32 |
| GA-Richmond |
Good (Green) |
32 |
| * 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.
|
