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South Carolina Ground-level Ozone Forecast

For 4/27/2017

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

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After a couple of cloudy and "clean" days Monday and Tuesday, a good deal of sunshine this Wednesday afternoon have allowed modest recovery in ozone concentrations, generally ranging in the upper GREEN category across the Palmetto state. For tomorrow, we expect somewhat of a decrease in ground level ozone concentrations in response to an approaching upper level short-wave disturbance and associated surface cold front, which will provide cleaner southerly flow in addition to promoting more cloud cover and shower and thunderstorm activity, particularly across the Upstate region. Thus, expect once again rather subdued ozone concentrations with all zones holding Code GREEN for your Thursday.
County * Color Code AQI
Abbeville Good (Green) 41
Aiken Good (Green) 41
Anderson Good (Green) 41
Barnwell Good (Green) 41
Berkeley Good (Green) 45
Calhoun Good (Green) 40
Charleston Good (Green) 45
Cherokee Good (Green) 41
Chester Good (Green) 42
Chesterfield Good (Green) 45
Darlington Good (Green) 45
Dillon Good (Green) 45
Dorchester Good (Green) 45
Edgefield Good (Green) 41
Fairfield Good (Green) 40
Florence Good (Green) 45
Greenville Good (Green) 41
Greenwood Good (Green) 41
Kershaw Good (Green) 40
Lancaster Good (Green) 42
Laurens Good (Green) 41
Lee Good (Green) 45
Lexington Good (Green) 40
Marlboro Good (Green) 45
McCormick Good (Green) 41
Newberry Good (Green) 40
Oconee Good (Green) 41
Pickens Good (Green) 41
Richland Good (Green) 40
Saluda Good (Green) 40
Spartanburg Good (Green) 41
Sumter Good (Green) 40
Union Good (Green) 41
York Good (Green) 42
GA-Columbia Good (Green) 41
GA-Richmond Good (Green) 41
* 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.