PM-2.5 (2012) Maintenance Area (Redesignated from Nonattainment) Summary

Data is current as of May 31, 2026

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Classification	Number of Areas	Number of Counties	2010 Population
Serious	0	0	0
Moderate	5	6	3,504,870
SUBTOTAL	5	6	3,504,870
GRAND TOTAL	5	6	3,504,870