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

Map of Nonattainment Areas

PM2.5 Attainment and Nonattainment Areas in the U.S.(as of April 5, 2005) - 2933 counties in attainment or unclassifiable, 177 entire counties are nonattainment, 31 partial counties are nonattainment.

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Larger map (PDF) (1 p, 249KB)

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