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Montana State PM-2.5 Nonattainment Area

Libby 1.31MB

 

Montana State PM-10 Nonattainment Areas

Butte   738 KB

Columbia Falls   476 KB

Kalispell   621 KB

Libby   515 KB

Missoula   937 KB

Thompson Falls   445 KB

Whitefish   543 KB

Montana Federal PM-10 Nonattainment Areas

Lame Deer   433 KB

Polson   419 KB

Ronan   403 KB

Montana State Carbon Monoxide Nonattainment Areas

Billings   925 KB (redesignated attainment February 2002)

Great Falls   612 KB (redesignated attainment May 2002)

Kalispell   582 KB  (area of concern not legally designated as nonattainment area)

Missoula   899 KB (redesignated attainment August 2007)

Montana State Lead Nonattainment Area

East Helena   503 KB

Montana State Sulfur Dioxide Nonattainment Areas

Billings   953 KB  (area of concern not legally designated as nonattainment area)

East Helena   512 KB

Laurel   882 KB