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Air Quality Alert issued for several Western Montana counties

MSO Air Quality
Posted at 3:22 PM, Sep 02, 2022
and last updated 2022-09-03 10:56:18-04

HELENA - The Montana Department of Environmental Quality (DEQ) has issued an Air Quality Alert for several Western Montana counties.

The alert is in effect until 8 a.m. on Monday, Sept. 5 for Beaverhead, Flathead, Lake, Lincoln, Mineral, Missoula, Ravalli, and Sanders counties.

An air quality alert means that particulates have been trending upwards and in exceedence of the 24-hour national ambient air quality standard has occurred -- or may occur in the near future.

DEQ reports as of Friday afternoon the particulate levels in Hamilton were "Unhealthy for Sensitive Groups."

Levels were "Moderate" in Seeley Lake, the Flathead Valley, Missoula, Libby, Dillon, Thompson Falls, and Frenchtown.

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.

Visit for additional information on air quality readings in Montana.