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The St. Louis Clean Air Partnership has issued an air quality alert for the St. Louis metropolitan area from 10 AM to 8 PM CDT Friday. An Orange air quality forecast means that maximum ozone concentrations are expected to reach levels that pose a health risk. Adverse health effects increase as air quality deteriorates. Ground- level ozone is an air contaminant which can cause breathing difficulties for children, older adults, as well as persons with respiratory problems.

AQAFFC The Georgia Department of Natural Resources, Environmental Protection Division has issued a Code Orange (Unhealthy for sensitive groups) Air Quality Alert for Atlanta for Friday September 18. Under Code Orange conditions, the outdoor air quality is likely to be unhealthy for some people. Children, people who are sensitive to ozone, and people with heart or lung disease should limit prolonged outdoor exertion during the late afternoon or early evening when ozone concentrations are highest.

The North Carolina Department of Environmental Quality in Raleigh NC has issued a Code Orange Air Quality Action Day for Ground Level Ozone for Gaston and Mecklenburg Counties, until 8 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the North Carolina Division of Air Quality Web site at https://airquality.climate.ncsu.edu/.

AQAMEG The Shelby County Health Department has issued a Code Orange Ozone Forecast effective for Shelby County Tennessee, Crittenden County Arkansas, and DeSoto County Mississippi, including the city of Memphis for today. This ozone forecast is due to forecasted ozone values that will be unhealthy for sensitive groups. These values will exceed the Environmental Protection Agency's federal safe health standard. The Shelby County Health Department recommends that

The North Carolina Department of Environmental Quality in Raleigh NC has issued a Code Orange Air Quality Action Day for Ground Level Ozone for Gaston and Mecklenburg Counties, from 10 AM this morning to 8 PM EDT this evening. An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the North Carolina Division of Air Quality Web site at https://airquality.climate.ncsu.edu/.

AQAMEG The Shelby County Health Department has issued a Code Orange Ozone Forecast effective for Shelby County Tennessee, Crittenden County Arkansas, and DeSoto County Mississippi, including the city of Memphis for Thursday. This ozone forecast is due to forecasted ozone values that will be unhealthy for sensitive groups. These values will exceed the Environmental Protection Agency's federal safe health standard. The Shelby County Health Department recommends that

AQAFWD The Texas Commission on Environmental Quality (TCEQ) has issued an Ozone Action Day for the Dallas-Fort Worth area for Thursday, September 17, 2026. Atmospheric conditions are expected to be favorable for producing high levels of ozone air pollution in the Dallas-Fort Worth area on Thursday. You can help prevent ozone pollution by sharing a ride, walking, riding a bicycle, taking your lunch to work, avoiding drive-through lanes, conserving energy, and keeping your vehicle properly tuned.

The North Carolina Department of Environmental Quality in Raleigh NC has issued a Code Orange Air Quality Action Day for Ground Level Ozone for Gaston and Mecklenburg Counties, from 10 AM to 8 PM EDT Thursday. An Air Quality Action Day means that Ground Level Ozone concentrations within the region may approach or exceed unhealthy standards. For additional information, please visit the North Carolina Division of Air Quality Web site at https://airquality.climate.ncsu.edu/.

AQAFFC The Georgia Department of Natural Resources, Environmental Protection Division has issued a Code Orange (Unhealthy for sensitive groups) Air Quality Alert for Atlanta for Thursday September 17. Under Code Orange conditions, the outdoor air quality is likely to be unhealthy for some people. Children, people who are sensitive to ozone, and people with heart or lung disease should limit prolonged outdoor exertion during the late afternoon or early evening when ozone concentrations are highest.