PM-2.5 (2012) Nonattainment Area Summary

Data is current as of March 31, 2024

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Classification	Number of Areas	Number of Counties	2010 Population
Serious	3	13	19,564,250
Moderate	2	2	1,377,409
SUBTOTAL	5	15	20,941,659
GRAND TOTAL	5	15	20,941,659