8-Hour Ozone (2008) Maintenance Areas (Redesignated from Nonattainment)

Data is current as of September 30, 2024

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SERIOUS

Chicago-Naperville, IL-IN-WI

MODERATE

Atlanta, GA

Inland Sheboygan County, WI

Shoreline Sheboygan County, WI

MARGINAL

Baton Rouge, LA

Charlotte-Rock Hill, NC-SC

Cincinnati, OH-KY-IN

Cleveland-Akron-Lorain, OH

Columbus, OH

Knoxville, TN

Memphis, TN-MS-AR

St. Louis-St. Charles-Farmington, MO-IL

Washington, DC-MD-VA

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