497  
AEUS76 KSGX 022110  
AQASGX  
 
AIR QUALITY ALERT MESSAGE  
RELAYED BY NATIONAL WEATHER SERVICE SAN DIEGO, CA  
210 PM PDT THU JUL 2 2026  
 
CAZ048-552-554-032115-  
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-  
ORANGE COUNTY COASTAL AREAS-ORANGE COUNTY INLAND AREAS-  
INCLUDING THE CITIES OF RIVERSIDE, SAN BERNARDINO, ONTARIO,  
MORENO VALLEY, FONTANA, RANCHO CUCAMONGA, CORONA, HUNTINGTON BEACH,  
COSTA MESA, NEWPORT BEACH, LAGUNA BEACH, SAN CLEMENTE, SANTA ANA,  
ANAHEIM, GARDEN GROVE, IRVINE, ORANGE, FULLERTON, AND MISSION VIEJO  
210 PM PDT THU JUL 2 2026  
   
..AIR QUALITY ALERT DUE TO HARMFUL FINE PARTICLE POLLUTION LEVELS  
 
* WHAT...THE SOUTH COAST AQMD HAS ISSUED AN AIR QUALITY ALERT DUE TO  
HARMFUL LEVELS OF FINE PARTICLE POLLUTION.  
VISIT HTTPS://WWW.AQMD.GOV/ALERTINFO TO CHECK CURRENT AND FORECASTED  
AIR QUALITY LEVELS.  
 
* WHERE...MOST OF LOS ANGELES COUNTY, ORANGE COUNTY, AND THE INLAND  
EMPIRE. LEVELS OF PARTICLE POLLUTION CAN VARY BY TIME AND LOCATION  
DEPENDING ON EMISSIONS AND LOCAL WEATHER CONDITIONS.  
 
* WHEN...HIGH PARTICLE POLLUTION DUE TO FIREWORKS EXPECTED FROM DUSK  
SATURDAY UNTIL 3 PM SUNDAY.  
 
* IMPACTS...PARTICLE POLLUTION CAN GET DEEP INTO THE LUNGS AND CAUSE  
SERIOUS HEALTH PROBLEMS SUCH AS HEART ATTACKS, BRONCHITIS, ASTHMA  
ATTACKS, AND DIFFICULTY BREATHING. EVERYONE CAN BE AFFECTED, BUT  
SENSITIVE GROUPS SUCH AS PEOPLE WITH LUNG OR HEART 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, GRILLING, AND GASOLINE-POWERED LAWN AND GARDEN  
EQUIPMENT  
 
 
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