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

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

Canonical: https://highsignal.app/data/records/b58e9cd404be75b5

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-06-29 13:10 ingested 2026-06-30 09:11

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

## extract

Air Quality Alert — Jefferson, CO; Boulder, CO; Denver, CO; Weld, CO; Arapahoe, CO; Broomfield, CO; Adams, CO; Douglas, CO; Larimer, 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 Sunday June 28 to 400 PM Monday June 29

IMPACTS...Action Day for Multiple Pollutants is now in effect for
the Front Range Urban Corridor.  Increasing wildfire smoke is
possible Sunday afternoon and evening, especially in and near
Denver and the local foothills to the west of the metro area.
Another plume of wildfire smoke could impact the entire northern
Front Range region Monday afternoon and evening. Both ozone and
fine particulates could reach the Unhealthy for Sensitive Groups
category or higher.  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, June 29, 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...People with heart or lung disease, older
adults, and children should reduce prolonged or heavy exertion.
During periods of heavier wildfire smoke, everyone should reduce
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The historical document was shared with another weather alert and cannot be attributed to this record.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.