Sulfur Dioxide Nonattainment Areas

As of March 30, 2012

PRIMARY, SECONDARY
East Helena Area (Lewis and Clark Co.), MT
Salt Lake Co, UT
Tooele Co, UT
Warren Co, NJ

PRIMARY
Armstrong Co, PA
Hayden (Pinal County), AZ
Laurel Area (Yellowstone County), MT
Piti, GU
Tanguisson, GU

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