CDPHE Air Pollution

Air Quality Health Advisory extended for southern parts of Mesa County through Monday morning near the #TurnerGulchFire. The Grand Valley has been removed from the advisory due to improved air quality. #cofire colorado.gov/airquality/col…

Smoke from the #TurnerGulchFire still impacting S Mesa County. Active fire behavior expected on Sat, increasing smoke in Mesa County, including Grand Junction. Air Quality Health Advisory for Wildfire Smoke extended through at least Sun morning. #cofire colorado.gov/airquality/col…

With temperatures heating up heading into the weekend, increased ozone remains a concern in the northern Front Range. The Ozone Action Day Alert remains in effect until at least 4 pm Saturday. Reduce emissions and limit outdoor exertion when possible. colorado.gov/airquality/adv…

Wildfire smoke will create air quality concerns in Mesa County on Fri & Sat. Heaviest smoke expected near the #TurnerGulchFire, additional impacts expected countywide. Stay aware of changing conditions in this area, and reduce exposure if possible. #cofire colorado.gov/airquality/col…

An Ozone Action Day Alert is in effect until at least 4 pm on Friday for the northern Front Range. Limit strenuous outdoor activity on Friday afternoon and evening if possible. colorado.gov/airquality/adv…

Although ozone will remain Good to Moderate on Thursday, increased concentrations of ozone are anticipated on Friday in the northern Front Range. Take it easy outdoors during the afternoon and evening to avoid exposure to poor air quality conditions. colorado.gov/airquality/adv…

Smoke from multiple sources continues to cause poor air quality in Mesa County. The Air Quality Health Advisory for Wildfire Smoke is extended through at least Fri morning. Reduce heavy exertion and take steps to protect your health if possible. colorado.gov/airquality/col… #cofire

Heavy smoke moving into Grand Junction and the entirety of Mesa County. Air Quality Health Advisory in effect through early Thursday morning. #cofire colorado.gov/airquality/col… colosmokeoutlook.blogspot.com

An Air Quality Health Advisory is in effect for southern Mesa and western Montrose Counties. Smoke will mostly affect locations near the fires. For more info: colorado.gov/airquality/col… Latest smoke blog: colosmokeoutlook.blogspot.com/2025/07/less-s…

An Ozone Action Day Alert is in effect until Midnight Thursday night. Ozone is expected to remain high this afternoon. On Friday, scattered showers and unsettled weather will limit ozone. For more details: colorado.gov/airquality/adv…

An Air Quality Health Advisory remains in effect for Mesa, Delta, and Montrose Counties. For more info: colorado.gov/airquality/col… Read the latest Colorado Smoke Blog post here: colosmokeoutlook.blogspot.com/2025/07/thursd…

Ozone may reach levels that are Unhealthy for Sensitive Groups on Thursday. The highest concentrations are most likely on Thursday afternoon from west Denver northward to Fort Collins. Take it easy outdoors to reduce exposure. colorado.gov/airquality/adv…

Wildfires in W CO continue to create poor air quality due to smoke. Air Quality Health Advisory has been extended through 9 am Thurs. Counties have shifted due to changes in weather. Stay informed by visiting colorado.gov/airquality/col…, or our blog colosmokeoutlook.blogspot.com #cofire

Smoke continues to impact many areas of W & SW CO, due to several wildfires in the region. The Air Quality Health Advisory for Wildfire Smoke remains in effect, with a slightly larger footprint on Tues. Check the Colo Smoke Blog for updated info: colosmokeoutlook.blogspot.com #cofire

Ozone Action Day Alert until midnight Monday night. Highest ozone levels along a line from Greeley to Ft. Collins. Improved air quality expected on Tuesday. colorado.gov/airquality/adv…

Air Quality Health Advisory continues to be in effect for parts of western Colorado as local wildfires are expected to remain active with periods of moderate to heavy smoke. colorado.gov/airquality/col… colosmokeoutlook.blogspot.com #cofire

Hot and stagnant weather is expected to continue Sunday and Monday. An Ozone Action Day Alert is in effect. For more information: colorado.gov/airquality/adv…

Several wildfires are burning in southwest Colorado. An Air Quality Health Advisory is in effect for the area. For more details: colorado.gov/airquality/col…

An Ozone Action Day Alert is in effect until Midnight Saturday Night. For more information: colorado.gov/airquality/adv…

Moderate to heavy smoke will continue today in southwest Colorado. For more details: colorado.gov/airquality/col…