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Interconnected Nature of Cross-State Air Pollution

This map illustrates the interconnected, regional nature of cross-state air pollution. The map shows "linkages" between pollution from upwind states and receptors in downwind states that had problems meeting the 2008 ozone NAAQS. These linkages were identified in the context of the Cross-State Air Pollution Rule (CSAPR) Update.

Map of the eastern U.S. showing how emissions from upwind states affect downwind states