Air Quality Alert in Northeastern Colorado

This alert expired on October 23, 2020 at 4:00:00 PM MDT
National Weather Service
Alert area: Adams; Arapahoe; Boulder; Broomfield; Denver; Douglas; Jefferson; Larimer; Weld

Posted October 23, 2020 at 9:11:00 AM MDT

...ACTION DAY FOR PARTICULATES FROM 400 PM THURSDAY UNTIL 400 PM
FRIDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Action Day for Particulates.
WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties
WHEN...400 PM Thursday October 22 to 400 PM Friday October 23
IMPACTS...Action Day for Particulates is now in effect for the
seven-county Denver-Boulder metropolitan area. Requests to limit
driving of non- ZEV vehicles (i.e., gas or diesel) are now in
effect until at least 4 PM Friday, October 23, 2020. Periods of
very heavy smoke will continue in southern parts of Larimer
County, including Estes Park, Glen Haven, and Drake. CDPHE
strongly recommends residents in these areas to remain indoors as
much as possible with the windows closed during periods of heavy
smoke. Locally heavy smoke will also be possible in parts of
Boulder County in close proximity to the Calwood and Left Hand
Canyon wildfires. Lesser amounts of smoke are expected for
locations below the wildfires along the Front Range Urban Corridor
from Ft. Collins southward to Longmont, Boulder, and Denver,
though brief periods of heavy smoke will remain possible so please
be prepared to limit time outdoors Thursday and Friday. CDPHE
requests 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...If smoke is thick or becomes thick in your
neighborhood you may want to remain indoors. This is especially
true for those with heart disease, respiratory illnesses, the very
young, and the elderly. Consider limiting outdoor activity when
moderate to heavy smoke is present. Consider relocating
temporarily if smoke is present indoors and is making you ill. If
visibility is less than 5 miles in smoke in your neighborhood,
smoke has reached levels that are unhealthy.

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