211
AEUS76 KSGX 242034
AQASGX
AIR QUALITY ALERT MESSAGE
RELAYED BY NATIONAL WEATHER SERVICE SAN DIEGO, CA
134 PM PDT MON AUG 24 2026
CAZ048-055-061-065-554-290300-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN BERNARDINO COUNTY MOUNTAINS-COACHELLA VALLEY-
SAN GORGONIO PASS NEAR BANNING-ORANGE COUNTY INLAND AREAS-
INCLUDING THE CITIES OF RIVERSIDE, SAN BERNARDINO, ONTARIO,
MORENO VALLEY, FONTANA, RANCHO CUCAMONGA, CORONA, CRESTLINE,
LAKE ARROWHEAD, BIG BEAR CITY, BIG BEAR LAKE, RUNNING SPRINGS,
WRIGHTWOOD, INDIO, PALM SPRINGS, CATHEDRAL CITY, PALM DESERT,
PALM DESERT COUNTRY, LA QUINTA, COACHELLA, SANTA ANA, ANAHEIM,
GARDEN GROVE, IRVINE, ORANGE, FULLERTON, AND MISSION VIEJO
134 PM PDT MON AUG 24 2026
...AIR QUALITY ALERT FOR HARMFUL LEVELS OF OZONE (SMOG) AIR
POLLUTION...
* WHAT...THE SOUTH COAST AQMD HAS ISSUED AN AIR QUALITY ALERT DUE TO
HARMFUL LEVELS OF OZONE POLLUTION.
VISIT HTTPS://WWW.AQMD.GOV/ALERTINFO TO CHECK CURRENT AND FORECASTED
AIR QUALITY LEVELS.
* WHERE...IN THE THE SOUTH COAST AIR BASIN AND COACHELLA VALLEY.
LEVELS OF OZONE POLLUTION CAN VARY BY TIME AND LOCATION DEPENDING ON
EMISSIONS AND AIR POLLUTION TRANSPORT.
* WHEN...FROM 1 PM MONDAY TO 8 PM FRIDAY. THE HIGHEST OZONE LEVELS
TYPICALLY OCCUR IN THE AFTERNOON AND EARLY-EVENING HOURS.
* IMPACTS... OZONE AIR POLLUTION CAN CAUSE SERIOUS HEALTH PROBLEMS,
INCLUDING TROUBLE BREATHING, ASTHMA ATTACKS, AND LUNG DAMAGE.
EVERYONE CAN BE AFFECTED, BUT SENSITIVE GROUPS SUCH AS PEOPLE WITH
LUNG DISEASE, OLDER ADULTS, PEOPLE WHO ARE PREGNANT, CHILDREN, AND
THOSE WHO SPEND A LOT OF TIME OUTDOORS ARE AT GREATER RISK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TO PROTECT YOUR HEALTH, CHECK AIR QUALITY LEVELS AND ACT AS NEEDED:
* WHEN AIR QUALITY INDEX (AQI) LEVELS ARE "UNHEALTHY FOR
SENSITIVE GROUPS" (ORANGE), SENSITIVE GROUPS AS SPECIFIED
ABOVE SHOULD LIMIT EXTENDED OR INTENSE OUTDOOR ACTIVITY.
* WHEN AQI IS "UNHEALTHY" (RED), EVERYONE MAY EXPERIENCE HEALTH
IMPACTS. SENSITIVE GROUPS SHOULD AVOID EXTENDED TIME OUTDOORS.
* WHEN AQI IS "VERY UNHEALTHY" (PURPLE), SENSITIVE GROUPS SHOULD
AVOID ALL OUTDOOR PHYSICAL ACTIVITY. EVERYONE ELSE SHOULD
AVOID EXTENDED OR INTENSE OUTDOOR ACTIVITY.
* WHEN AQI IS "HAZARDOUS" (MAROON), EVERYONE SHOULD AVOID ALL
OUTDOOR PHYSICAL ACTIVITY.
* ADDITIONAL DETAILS...
TO HELP KEEP INDOOR AIR CLEAN WHEN AIR QUALITY IS POOR:
* KEEP WINDOWS AND DOORS CLOSED
* RUN YOUR AIR CONDITIONER AND/OR AN AIR PURIFIER
* DO NOT USE WHOLE HOUSE FANS OR SWAMP COOLERS THAT BRING IN
OUTSIDE AIR IF YOU HAVE OTHER METHODS TO STAY COOL
* AVOID OTHER SOURCES OF POLLUTION SUCH AS FIREPLACES, CANDLES,
INCENSE, AND GRILLING
TO HELP MINIMIZE OUTDOOR OZONE AIR POLLUTION LEVELS:
* LIMIT THE USE OF GASOLINE POWERED LAWN AND GARDEN EQUIPMENT
UNTIL EVENING HOURS
* TRY TO DELAY TRIPS TO THE GAS STATION AND THE USE OF HOUSEHOLD
CHEMICALS UNTIL THE EVENING
FOR THE LATEST AIR QUALITY FORECASTS AND INFORMATION, VISIT THE
WEBSITE AT AQMD.GOV.
CO
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