Air Quality Alert
COC013-014-069-123-059-031-001-035-005-072200-
Boulder-Broomfield-Larimer-Weld-Jefferson-Denver-Adams-
Douglas-Arapahoe-
410 PM MDT Mon Jul 6 2026
...OZONE ACTION DAY ALERT FROM 400 PM MONDAY UNTIL 400 PM
TUESDAY...
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 Monday July 06 to 400 PM Tuesday July 07
IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Hot and smoky weather conditions will
result in ozone concentrations reaching the Unhealthy for
Sensitive Groups category Monday afternoon and evening, with
Unhealthy levels of ozone possible in northern and western parts
of the Denver metro area. Additionally, particle pollution is
elevated due to wildfire smoke. Ozone could reach the Unhealthy
for Sensitive Groups category again Tuesday afternoon and evening.
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.
Tuesday, July 7, 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...Greater likelihood of respiratory symptoms
and breathing difficulty in active children and adults and people
with lung disease, such as asthma; possible respiratory effects in
general population. People with heart or lung disease, older
adults, and children should avoid prolonged or heavy exertion.
Everyone else should reduce prolonged or heavy exertion.
$$
COC079-043-101-065-109-015-027-071500-
Mineral-Fremont-Pueblo-Lake-Saguache-Chaffee-Custer-
410 PM MDT Mon Jul 6 2026
...AIR QUALITY HEALTH ADVISORY FOR WILDFIRE SMOKE FROM 900 AM
MONDAY UNTIL 900 AM TUESDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Air Quality Health Advisory for Wildfire Smoke.
WHERE...Delta, Montrose, San Miguel, Dolores, Ouray, Montezuma, La
Plata, San Juan, Hinsdale, Mineral, Saguache, Gunnison, Chaffee,
Lake, Summit, Custer, Pueblo, Fremont, Park and Mesa Counties.
Locations include, but are not limited to Delta, Montrose, Nucla,
Telluride, Dove Creek, Ouray, Cortez, Durango, Hermosa,
Honeyville, Rockwood, Silverton, Lake City, Creede, Saguache,
Gunnison, Buena Vista, Salida, Leadville, Breckenridge,
Westcliffe, Pueblo, Canon City, Fairplay and Grand Junction.
WHEN...900 AM Monday July 06 to 900 AM Tuesday July 07
IMPACTS...Moderate to heavy smoke from several wildfires in
Colorado and Utah will be possible within the advisory area
through at least Tuesday morning.
HEALTH INFORMATION...Public Health Recommendations: If smoke is
thick or becomes thick in your neighborhood you may want to remain
indoors. This is especially true for those with heart disease,
respiratory illnesses, the very young, and older adults. Consider
limiting outdoor activity when moderate to heavy smoke is present.
Consider relocating temporarily if smoke is present indoors and is
making you ill. If visibility is less than 5 miles in smoke in
your neighborhood, smoke has reached levels that are unhealthy.
$$
COC029-113-077-111-053-033-051-067-091-085-083-071500-
Delta-San Miguel-Mesa-San Juan-Hinsdale-Dolores-Gunnison-La
Plata-Ouray-Montrose-Montezuma-
410 PM MDT Mon Jul 6 2026
...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, Dolores, Ouray, Montezuma, La
Plata, San Juan, Hinsdale, Mineral, Saguache, Gunnison, Chaffee,
Lake, Summit, Custer, Pueblo, Fremont, Park and Mesa Counties.
Locations include, but are not limited to Delta, Montrose, Nucla,
Telluride, Dove Creek, Ouray, Cortez, Durango, Hermosa,
Honeyville, Rockwood, Silverton, Lake City, Creede, Saguache,
Gunnison, Buena Vista, Salida, Leadville, Breckenridge,
Westcliffe, Pueblo, Canon City, Fairplay and Grand Junction.
WHEN...900 AM Monday July 06 to 900 AM Tuesday July 07
IMPACTS...Moderate to heavy smoke from several wildfires in
Colorado and Utah will be possible within the advisory area
through at least Tuesday morning.
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.
$$
COC117-093-071500-
Summit-Park-
410 PM MDT Mon Jul 6 2026
...AIR QUALITY HEALTH ADVISORY FOR WILDFIRE SMOKE FROM 900 AM
MONDAY UNTIL 900 AM TUESDAY...
The Colorado Department of Public Health and Environment has
issued the following...
WHAT...Air Quality Health Advisory for Wildfire Smoke.
WHERE...Delta, Montrose, San Miguel, Dolores, Ouray, Montezuma, La
Plata, San Juan, Hinsdale, Mineral, Saguache, Gunnison, Chaffee,
Lake, Summit, Custer, Pueblo, Fremont, Park and Mesa Counties.
Locations include, but are not limited to Delta, Montrose, Nucla,
Telluride, Dove Creek, Ouray, Cortez, Durango, Hermosa,
Honeyville, Rockwood, Silverton, Lake City, Creede, Saguache,
Gunnison, Buena Vista, Salida, Leadville, Breckenridge,
Westcliffe, Pueblo, Canon City, Fairplay and Grand Junction.
WHEN...900 AM Monday July 06 to 900 AM Tuesday July 07
IMPACTS...Moderate to heavy smoke from several wildfires in
Colorado and Utah will be possible within the advisory area
through at least Tuesday morning.
HEALTH INFORMATION...Public Health Recommendations: If smoke is
thick or becomes thick in your neighborhood you may want to remain
indoors. This is especially true for those with heart disease,
respiratory illnesses, the very young, and older adults. Consider
limiting outdoor activity when moderate to heavy smoke is present.
Consider relocating temporarily if smoke is present indoors and is
making you ill. If visibility is less than 5 miles in smoke in
your neighborhood, smoke has reached levels that are unhealthy.
$$
