Illinois

8-hour Ozone Nonattainment
Areas in blue border

50

miles

100

Iowa

Wisconsin







Racine



Rock

Walworth

Green





-J Kenosha

Milwaukee- Racine, Wl
Subpart 2 Moderate

Chicago-Gary- Lake County, IL-IN
Subpart 2 Moderate

St Louis, MO-IL
Subpart 2 Moderate

Subpart 2 Moderate Missouri
Subpart 2 Marginal
Subpart 1 (Basic)

Subpart 1 (Basic) - EAC

Indiana

Kentucky

-------