South Carolina Ground-level Ozone Forecast

For 9/22/2019

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

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Ground level ozone concentrations are on track to peak within code yellow in the Upstate and green elsewhere. Expect a carbon copy forecast for Sunday with high pressure rather stalled. Sunny skies, low humidity, warm temperatures and a light south wind should produce an isolated minimal YELLOW reading in the Upstate on Sunday. However, all other zones should remain GREEN.
County * Color Code AQI
Abbeville Moderate (Yellow) 54
Aiken Good (Green) 45
Anderson Moderate (Yellow) 54
Barnwell Good (Green) 45
Berkeley Good (Green) 34
Calhoun Good (Green) 49
Charleston Good (Green) 34
Cherokee Moderate (Yellow) 54
Chester Good (Green) 45
Chesterfield Good (Green) 48
Darlington Good (Green) 48
Dillon Good (Green) 48
Dorchester Good (Green) 34
Edgefield Good (Green) 45
Fairfield Good (Green) 49
Florence Good (Green) 48
Greenville Moderate (Yellow) 54
Greenwood Moderate (Yellow) 54
Kershaw Good (Green) 49
Lancaster Good (Green) 45
Laurens Moderate (Yellow) 54
Lee Good (Green) 48
Lexington Good (Green) 49
Marlboro Good (Green) 48
McCormick Good (Green) 45
Newberry Good (Green) 49
Oconee Moderate (Yellow) 54
Pickens Moderate (Yellow) 54
Richland Good (Green) 49
Saluda Good (Green) 49
Spartanburg Moderate (Yellow) 54
Sumter Good (Green) 49
Union Moderate (Yellow) 54
York Good (Green) 45
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.