732
AEUS73 KLSX 171936
AQALSX
AIR QUALITY ALERT MESSAGE
RELAYED BY NATIONAL WEATHER SERVICE ST LOUIS MO
236 PM CDT WED SEP 17 2025
ILZ100>102-MOZ061>065-190100-
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
236 PM CDT WED SEP 17 2025
..AIR QUALITY ALERT IN EFFECT UNTIL 8 PM CDT THIS EVENING
..AIR QUALITY ALERT IN EFFECT FROM 10 AM TO 8 PM CDT THURSDAY
THE ST. LOUIS CLEAN AIR PARTNERSHIP HAS ISSUED AN AIR QUALITY ALERT
FOR THE ST. LOUIS METROPOLITAN AREA UNTIL 8 PM CDT THIS EVENING.
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/
DELIA
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