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South Carolina Ground-level Ozone Forecast

For 8/21/2014

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

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Although an isolated low YELLOW could be observed in the northeastern fragment of York County, ground level ozone concentrations are trending mostly in the GREEN category on this Wednesday afternoon. Large high pressure will continue to build over the Deep South on Thursday while disturbances ride along westerly flow on the northern flank of our ridge to our north. Temperatures are expected to rise into the mid and upper 90s with a downslope northwesterly flow expected. The general airmass remains relatively clean over both South Carolina and points upstream, and only isolated thunderstorms are expected. Under such conditions, expect ozone to crest in the low YELLOW category in Catawba, where local emissions from the Charlotte metro area should help boost concentrations within a light boundary layer flow. Otherwise, ozone concentrations should remain GREEN.
County * Color Code AQI
Abbeville Good (Green) 47
Aiken Good (Green) 47
Anderson Good (Green) 47
Barnwell Good (Green) 47
Berkeley Good (Green) 42
Calhoun Good (Green) 47
Charleston Good (Green) 42
Cherokee Good (Green) 47
Chester Moderate (Yellow) 61
Chesterfield Good (Green) 46
Darlington Good (Green) 46
Dillon Good (Green) 46
Dorchester Good (Green) 42
Edgefield Good (Green) 47
Fairfield Good (Green) 47
Florence Good (Green) 46
Greenville Good (Green) 47
Greenwood Good (Green) 47
Kershaw Good (Green) 47
Lancaster Moderate (Yellow) 61
Laurens Good (Green) 47
Lee Good (Green) 46
Lexington Good (Green) 47
Marlboro Good (Green) 46
McCormick Good (Green) 47
Newberry Good (Green) 47
Oconee Good (Green) 47
Pickens Good (Green) 47
Richland Good (Green) 47
Saluda Good (Green) 47
Spartanburg Good (Green) 47
Sumter Good (Green) 47
Union Good (Green) 47
York Moderate (Yellow) 61
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.

No Data

We cannot currently provide data for the given area.

Good Moderate Unhealthy for Sensitive Groups Unhealthy Very Unhealthy No Data