Air Quality Alert
Issued by NWS Denver/Boulder, CO

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AEUS75 KBOU 240210
AQABOU

Air Quality Alert Message
Colorado Department of Public Health and Environment
Relayed by National Weather Service Boulder CO
810 PM MDT Fri Jul 23 2021

COC013-123-001-031-059-035-005-014-069-240600-
Boulder-Weld-Adams-Denver-Jefferson-Douglas-Arapahoe-
Broomfield-Larimer-
810 PM MDT Fri Jul 23 2021

...OZONE ACTION DAY ALERT FROM 400 PM FRIDAY UNTIL 1200 AM
SATURDAY...

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 Friday July 23 to 1200 AM Saturday July 24

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Requests to limit driving of non-ZEV
vehicles (i.e., gas or diesel) are now in effect until midnight,
Friday night, July 23, 2021.  Ozone concentrations in the
Unhealthy for Sensitive Groups category are likely Friday
afternoon and evening, primarily for southern and western portions
of the Denver metro area, including Highlands Ranch and Golden.
Improved air quality is expected on Saturday with ozone
concentrations returning to the Good to Moderate range.For areas
included in this advisory that are not expected to reach the
Unhealthy for Sensitive Groups (USG) air quality designation, we
request that activities, such as driving non-ZEV vehicles (i.e.,
gas or diesel), be reduced to lessen the impacts on neighboring
air quality. Additional air pollution in this region may directly
worsen air quality or contribute to precursors which may also
adversely affect air quality.  For Colorado air quality
conditions, forecasts and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx

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.

$$


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