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Air Quality Alert issued June 13 at 9:10AM MDT by NWS Denver COThe Colorado Department of Public Health and Environment hasissued the following...WHAT...Ozone Action Day Alert.WHERE...Douglas, Jefferson, Denver, western Arapahoe, westernAdams, Broomfield, Boulder, Larimer, and Weld CountiesWHEN...400 PM Wednesday June 12 to 400 PM Thursday June 13IMPACTS...Ozone Action Day Alert is now in effect for the FrontRange Urban Corridor. Request to limit driving gas and diesel-powered vehicles is now in effect until at least 4 p.m. Thursday,June 13, 2024. Although ozone is expected to remain in theModerate category on Wednesday due to gusty westerly windsdeveloping, higher ozone is anticipated for Thursday. The highestozone concentrations on Thursday are most likely for southwesternparts of the Denver metro area, northward along the foothills toaround Golden. For areas included in this advisory that are notexpected to reach the Unhealthy for Sensitive Groups (USG) airquality designation, we request that activities, such as drivingnon-ZEV vehicles (i.e., gas or diesel), be reduced to lessen theimpacts on neighboring air quality. Additional air pollution inthis region may directly worsen air quality or contribute toprecursors which may also adversely affect air quality. ForColorado air quality conditions, forecasts and advisories, visit:https://www.colorado.gov/airquality/colorado_summary.aspxHEALTH INFORMATION...Increasing likelihood of respiratory symptomsand breathing discomfort in active children and adults and peoplewith lung disease, such as asthma. Active children and adults, andpeople with lung disease, such as asthma, should reduce prolongedor heavy outdoor exertion.

National Weather Service