# Air Quality Alert: Jefferson, CO; Denver, CO; Adams, CO; Arapahoe, CO; Weld, CO; Broomfield, CO; Larimer, CO; Douglas, CO; Boulder, CO — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/5baf911ed629b45a

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-08 16:11 ingested 2026-08-09 06:57

[original source ↗](http://www.weather.gov/)

## extract

Air Quality Alert — Jefferson, CO; Denver, CO; Adams, CO; Arapahoe, CO; Weld, CO; Broomfield, CO; Larimer, CO; Douglas, CO; Boulder, CO
Severity: Unknown. Certainty: Unknown.
The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Action Day for Multiple Pollutants.

WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties

WHEN...400 PM Saturday August 08 to 400 PM Sunday August 09

IMPACTS...Action Day for Multiple Pollutants is now in effect for
the Front Range Urban Corridor.  Elevated levels of ozone and
wildfire smoke are possible through Sunday afternoon. The highest
ozone levels are expected in and near the Denver metro area. The
heaviest wildfire smoke is expected in northern parts of the Front
Range, including Ft. Collins, Greeley, and surrounding areas.  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.
Sunday, August 9, 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
in sensitive individuals, aggravation of heart or lung disease and
premature mortality in people with cardiopulmonary disease and
older adults. People with heart or lung disease, older adults, and
children should reduce prolonged or heavy exertion Saturday and
Sunday. Everyone else should consider reducing prolonged or heavy
exertion.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.