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AEUS75 KBOU 262211
AQABOU
AIR QUALITY ALERT MESSAGE
COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
RELAYED BY NATIONAL WEATHER SERVICE BOULDER CO
410 PM MDT WED AUG 26 2026
COC123-001-013-059-031-035-005-069-014-272200-
WELD-ADAMS-BOULDER-JEFFERSON-DENVER-DOUGLAS-ARAPAHOE-
LARIMER-BROOMFIELD-
410 PM MDT WED AUG 26 2026
...OZONE ACTION DAY ALERT FROM 400 PM WEDNESDAY UNTIL 400 PM
THURSDAY...
THE COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT HAS
ISSUED THE FOLLOWING...
WHAT...OZONE ACTION DAY ALERT.
WHERE...DOUGLAS, JEFFERSON, DENVER, WESTERN ARAPAHOE, WESTERN
ADAMS, BROOMFIELD, BOULDER, LARIMER, AND WELD COUNTIES
WHEN...400 PM WEDNESDAY AUGUST 26 TO 400 PM THURSDAY AUGUST 27
IMPACTS...OZONE ACTION DAY ALERT IS NOW IN EFFECT FOR THE FRONT
RANGE URBAN CORRIDOR. OZONE CONCENTRATIONS IN THE UNHEALTHY FOR
SENSITIVE GROUPS CATEGORY ARE POSSIBLE BOTH WEDNESDAY AND THURSDAY
DURING THE AFTERNOON AND EVENING HOURS. THE BEST CHANCE FOR THESE
ELEVATED OZONE LEVELS WILL BE IN WESTERN PARTS OF THE DENVER METRO
AREA, INCLUDING THE ADJACENT FOOTHILLS. FOR COLORADO AIR QUALITY
CONDITIONS, FORECASTS, AND ADVISORIES, VISIT:
HTTPS://WWW.COLORADO.GOV/AIRQUALITY/COLORADO_SUMMARY.ASPX IF
POSSIBLE, PLEASE HELP US REDUCE OZONE POLLUTION BY LIMITING
DRIVING GAS AND DIESEL-POWERED VEHICLES UNTIL AT LEAST 4 P.M.
THURSDAY, AUGUST 27, 2026. COLORADO IS ALSO ADDRESSING OZONE
POLLUTION THROUGH STATE POLICIES. FOR MORE INFORMATION ABOUT
HEALTH IMPACTS AND HOW OZONE POLLUTION FORMS IN COLORADO, VISIT:
HTTPS://CDPHE.COLORADO.GOV/OZONE-POLLUTION-AND-YOUR-HEALTH
HEALTH INFORMATION...INCREASING LIKELIHOOD OF RESPIRATORY SYMPTOMS
AND BREATHING DISCOMFORT IN ACTIVE CHILDREN AND ADULTS AND PEOPLE
WITH LUNG DISEASE, SUCH AS ASTHMA. ACTIVE CHILDREN AND ADULTS, AND
PEOPLE WITH LUNG DISEASE, SUCH AS ASTHMA, SHOULD REDUCE PROLONGED
OR HEAVY OUTDOOR EXERTION DURING THE AFTERNOONS AND EVENINGS BOTH
WEDNESDAY AND THURSDAY.
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