South Carolina Ground-level Ozone Forecast

For 6/21/2024

[ The forecast is updated daily by 3:30 pm EDT. ]

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Ground level ozone concentrations are currently in the code Green range across all monitors in South Carolina and into eastern Georgia on this Thursday afternoon. High pressure continues to dominate the eastern US as we finish out the week, bringing another day of hot temperatures, dry conditions, and mostly sunny skies to much of the region. However, a developing coastal storm headed towards the South Carolina coast will likely bring an increase in moisture, along with increased cloud cover and chance for storms along the coast. Although inland areas will see prime conditions for ozone formation, with sunny skies and dry air, wind flow mainly from off the ocean will continue to bring in clean oceanic and coastal Carolina background air. Thus, all zones are expected to remain code Green for ozone on Friday.
County * Color Code AQI
Abbeville Good (Green) 50
Aiken Good (Green) 44
Anderson Good (Green) 50
Barnwell Good (Green) 44
Berkeley Good (Green) 43
Calhoun Good (Green) 43
Charleston Good (Green) 43
Cherokee Good (Green) 50
Chester Good (Green) 50
Chesterfield Good (Green) 41
Darlington Good (Green) 41
Dillon Good (Green) 41
Dorchester Good (Green) 43
Edgefield Good (Green) 44
Fairfield Good (Green) 43
Florence Good (Green) 41
Greenville Good (Green) 50
Greenwood Good (Green) 50
Kershaw Good (Green) 43
Lancaster Good (Green) 50
Laurens Good (Green) 50
Lee Good (Green) 41
Lexington Good (Green) 43
Marlboro Good (Green) 41
McCormick Good (Green) 44
Newberry Good (Green) 43
Oconee Good (Green) 50
Pickens Good (Green) 50
Richland Good (Green) 43
Saluda Good (Green) 43
Spartanburg Good (Green) 50
Sumter Good (Green) 43
Union Good (Green) 50
York Good (Green) 50
GA-Columbia Good (Green) 44
GA-Richmond Good (Green) 44
* 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.

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