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Air Quality Alert Message

Status

Issued Active alert

Start Time

Mon 06/16/2025 04:23 PM EDT

End Time

Tue 06/17/2025 09:00 PM EDT

Impacts

Informational

Full Alert Message

Air Quality Alert Message Relayed by National Weather Service St Louis MO 323 PM CDT Mon Jun 16 2025 ...AIR QUALITY ALERT IN EFFECT FROM 10 AM TO 8 PM CDT TUESDAY... 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 Tuesday. 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. Reducing outdoor physical activity is recommended. If it is a regularly scheduled work day you are urged to consider telecommuting, carpooling, or utilizing public transit. Avoid excessive idling and do not top off when refueling motor vehicles. The use of gasoline-powered lawn equipment should be reduced or postponed until late in the day. For more information visit the St. Louis Clean Air Partnership at http://cleanair-stlouis.com/ For current Air Quality Index (AQI) values visit https://www.airnow.gov/

Technical Header

ILZ100>102-MOZ061>065-180100- Madison IL-Saint Clair IL-Monroe IL-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, Washington, Union, Sullivan, and Saint Louis 323 PM CDT Mon Jun 16 2025