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Air Quality Alert
Issued: 3:03 PM Sep. 2, 2025 – National Weather Service
...AIR QUALITY ALERT IN EFFECT... The Montana Department of Environmental Quality has issued an air quality alert for Daniels, Dawson, McCone, Richland, Roosevelt, Sheridan, Valley counties in effect until 9AM on 09/03/2025 An Air Quality Alert means that particulates have been trending upwards and that an exceedence of the 24 hour National Ambient Air Quality Standard (NAAQS) has occurred or may occur in the near future. Elevated particulate levels from wildfire smoke As of 8AM on 09/02/2025, particulate levels in Glendive are Unhealthy for Sensitive Groups. As of 8AM on 09/02/2025, particulate levels in Billings, Butte, Columbia Falls, Cut Bank, Frenchtown, Great Falls, Lewistown, Missoula, Seeley Lake, Sidney and Thompson Falls are Moderate. When air quality is Unhealthy for Sensitive Groups... State and local health officials recommend that people with respiratory or heart disease, the elderly and children should limit prolonged exertion. When air quality is Moderate... State and local health officials recommend that unusually sensitive people should consider reducing prolonged or heavy exertion. For more information visit the Montana Department of Environmental Quality at http://todaysair.mtdeq.us
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