Air Quality Alert issued June 30 at 4:10PM MDT by NWS Denver CO

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 June 30 to 400 PM Tuesday July 01

IMPACTS…Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Although ozone concentrations will remain
in the Good to Moderate range on Monday, higher ozone levels are
expected on Tuesday. Ozone concentrations could reach the
Unhealthy for Sensitive Groups category Tuesday afternoon and
evening. The highest chance for these elevated ozone levels will
be in western parts of the Denver metro area, including Golden.
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 1, 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.