Air Quality Alert
COC059-069-014-001-005-035-031-013-123-142200-
Jefferson-Larimer-Broomfield-Adams-Arapahoe-Douglas-Denver-
Boulder-Weld-
910 AM MDT Mon Jul 14 2025
...OZONE ACTION DAY ALERT FROM 400 PM SUNDAY UNTIL 400 PM
MONDAY...
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 Sunday July 13 to 400 PM Monday July 14
IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Hot and stagnant weather will allow ozone
to reach the Unhealthy for Sensitive Groups category on Sunday and
Monday. The highest concentrations are expected in western
portions of the Denver Metro area, and northward along the I-15
corridor towards Fort Collins. 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.
Monday, July 14, 2025. 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.
$$
COC085-113-077-029-091-051-151500-
Montrose-San Miguel-Mesa-Delta-Ouray-Gunnison-
910 AM MDT Mon Jul 14 2025
...AIR QUALITY HEALTH ADVISORY FOR WILDFIRE SMOKE FROM 900 AM
MONDAY UNTIL 900 AM TUESDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Air Quality Health Advisory for Wildfire Smoke.
WHERE...Delta, Montrose, San Miguel, Ouray, Gunnison, and southern
Mesa Counties. Locations include, but are not limited to Delta,
Montrose, Nucla, Telluride, Ouray and Gunnison.
WHEN...900 AM Monday July 14 to 900 AM Tuesday July 15
IMPACTS...Multiple wildfires will produce periods of moderate to
heavy smoke across the advisory area through early Tuesday
morning. The heaviest smoke impacts will likely be in close
proximity to the South Rim fire in eastern Montrose County, the
Sowbelly Fire and Turner Gulch fires in southern Mesa County, and
areas directly downwind of the Deer Creek fire in Montrose and San
Miguel Counties.
HEALTH INFORMATION...Public Health Recommendations: If smoke is
thick or becomes thick in your neighborhood you may want to remain
indoors. This is especially true for those with heart disease,
respiratory illnesses, the very young, and older adults. Consider
limiting outdoor activity when moderate to heavy smoke is present.
Consider relocating temporarily if smoke is present indoors and is
making you ill. If visibility is less than 5 miles in smoke in
your neighborhood, smoke has reached levels that are unhealthy.
$$
