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South Carolina Ground-level Ozone Forecast

For 7/26/2017

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

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A stationary front stretches across North Carolina Tuesday afternoon. Ahead of it, convergence and pooling of ozone are working with NE'rly weak flow to send ozone concentrations well up into the Yellow category this afternoon across the northern tier of zones, as well as across the CSRA, where efficient urban production has been occurring. Elsewhere, things are looking pretty clean and green. Wednesday, the weak front drops south and dissipates over South Carolina. Expect similar sourcing and higher concentrations across the Upstate and Catawba zones, where Code YELLOW is forecast once again. Elsewhere, expect cleaner sourcing and code GREEN conditions to prevail.
County * Color Code AQI
Abbeville Moderate (Yellow) 64
Aiken Good (Green) 47
Anderson Moderate (Yellow) 64
Barnwell Good (Green) 47
Berkeley Good (Green) 40
Calhoun Good (Green) 42
Charleston Good (Green) 40
Cherokee Moderate (Yellow) 64
Chester Moderate (Yellow) 51
Chesterfield Good (Green) 48
Darlington Good (Green) 48
Dillon Good (Green) 48
Dorchester Good (Green) 40
Edgefield Good (Green) 47
Fairfield Good (Green) 42
Florence Good (Green) 48
Greenville Moderate (Yellow) 64
Greenwood Moderate (Yellow) 64
Kershaw Good (Green) 42
Lancaster Moderate (Yellow) 51
Laurens Moderate (Yellow) 64
Lee Good (Green) 48
Lexington Good (Green) 42
Marlboro Good (Green) 48
McCormick Good (Green) 47
Newberry Good (Green) 42
Oconee Moderate (Yellow) 64
Pickens Moderate (Yellow) 64
Richland Good (Green) 42
Saluda Good (Green) 42
Spartanburg Moderate (Yellow) 64
Sumter Good (Green) 42
Union Moderate (Yellow) 64
York Moderate (Yellow) 51
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.