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Area Designations for 1997 Fine Particle (PM2.5) Standards

Montana PM2.5 Designations Map


Information provided for informational purposes only Note: EPA no longer updates this information, but it may be useful for historical purposes. See the PM Designations Home Page for more recent information about PM Designations.

The map shows that part of Lincoln County comprises the Libby nonattainment area.  The remainder of the state has not been designated nonattainment.

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