Montana Department of Environmental Quality About Us Permitting & Operator Assistance Public Participation

Air Quality | 2025 Air Monitoring Network Assessment| Public Comment Period Ends June 23, 2025

  • May 23 2025

The Montana Department of Environmental Quality, Air Quality Bureau conducts scientific measurements of specific pollutants in the ambient air across Montana. Every five years the Bureau conducts an overall assessment of its air monitoring program to ensure it remains valid, effective, efficient, of high quality, and in step with the changing realities of the state. The 2025 5-Year Network Assessment document contains the results of the latest air monitoring network evaluation, and is made available here for public review and comment.

Associated Materials:

Comment Period Ends:                             

  • June 23, 2025 11:59PM

Send Comments To:

OR

  • DEQ Air Quality Bureau
    PO Box 200901
    Helena MT 59620-0901

Tags: Public Comment and Air