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South Carolina Ground-level Ozone Forecast

For 4/25/2018

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

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Surface low pressure, currently centered over the Upstate on this Tuesday afternoon, continues to circulate clean air into the Palmetto State with all monitors held down into the clean green category. By Wednesday, the low will pull northeast out of the region towards coastal sections of the Mid-Atlantic. In its wake, sourcing continues to look clean for tomorrow. Despite drier air and more sunshine for Wednesday, ozone concentrations once again will be held down in the code GREEN category with only slight increases expected over Tuesday.
County * Color Code AQI
Abbeville Good (Green) 44
Aiken Good (Green) 46
Anderson Good (Green) 44
Barnwell Good (Green) 46
Berkeley Good (Green) 40
Calhoun Good (Green) 44
Charleston Good (Green) 40
Cherokee Good (Green) 44
Chester Good (Green) 40
Chesterfield Good (Green) 42
Darlington Good (Green) 42
Dillon Good (Green) 42
Dorchester Good (Green) 40
Edgefield Good (Green) 46
Fairfield Good (Green) 44
Florence Good (Green) 42
Greenville Good (Green) 44
Greenwood Good (Green) 44
Kershaw Good (Green) 44
Lancaster Good (Green) 40
Laurens Good (Green) 44
Lee Good (Green) 42
Lexington Good (Green) 44
Marlboro Good (Green) 42
McCormick Good (Green) 46
Newberry Good (Green) 44
Oconee Good (Green) 44
Pickens Good (Green) 44
Richland Good (Green) 44
Saluda Good (Green) 44
Spartanburg Good (Green) 44
Sumter Good (Green) 44
Union Good (Green) 44
York Good (Green) 40
GA-Columbia Good (Green) 46
GA-Richmond Good (Green) 46
* 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.