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South Carolina Ground-level Ozone Forecast

For 7/18/2018

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

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Ground level ozone readings are trending mostly in the green category on this Tuesday afternoon. For Wednesday, a front will push through the state from north to south; by afternoon, it will be situated between the Midlands and Lowcountry. North of the front, dry air infiltrating from the north and more sunshine will result in slightly elevated ozone concentrations, Code YELLOW, for the Upstate and Catawba zones. Closer to and south of the front, expect more moisture, cloudiness, and convection to keep ozone concentrations down in the GREEN category.
County * Color Code AQI
Abbeville Moderate (Yellow) 51
Aiken Good (Green) 45
Anderson Moderate (Yellow) 51
Barnwell Good (Green) 45
Berkeley Good (Green) 37
Calhoun Good (Green) 48
Charleston Good (Green) 37
Cherokee Moderate (Yellow) 51
Chester Moderate (Yellow) 54
Chesterfield Good (Green) 49
Darlington Good (Green) 49
Dillon Good (Green) 49
Dorchester Good (Green) 37
Edgefield Good (Green) 45
Fairfield Good (Green) 48
Florence Good (Green) 49
Greenville Moderate (Yellow) 51
Greenwood Moderate (Yellow) 51
Kershaw Good (Green) 48
Lancaster Moderate (Yellow) 54
Laurens Moderate (Yellow) 51
Lee Good (Green) 49
Lexington Good (Green) 48
Marlboro Good (Green) 49
McCormick Good (Green) 45
Newberry Good (Green) 48
Oconee Moderate (Yellow) 51
Pickens Moderate (Yellow) 51
Richland Good (Green) 48
Saluda Good (Green) 48
Spartanburg Moderate (Yellow) 51
Sumter Good (Green) 48
Union Moderate (Yellow) 51
York Moderate (Yellow) 54
GA-Columbia Good (Green) 45
GA-Richmond Good (Green) 45
* 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.