St Louis, MO-IL 8-hour Ozone Map

"This map shows the boundaries of the designated St Louis, MO-IL 8-hour ozone nonattainment area. It includes the boundaries of associated 1-hour ozone nonattainment and/or maintenance areas, as well as any associated MPOs. The map is intended to depict the extent of 8-hour ozone nonattainment in this area, and how the boundaries of the 8-hour area, 1-hour area, and the MPO planning area relate to each other."

• St. Louis, MO-IL 8-hour Ozone Nonattainment Area
  • ILLINOIS
    • Jersey Co
    • Madison Co
    • Monroe Co
    • St Clair Co
  • MISSOURI
    • Franklin Co
    • Jefferson Co
    • St Charles Co
    • St Louis
    • St Louis Co
• St Louis, MO-IL 1-hour Ozone Maintenance Area
  • ILLINOIS
    • Madison Co
    • Monroe Co
    • St Clair Co
  • MISSOURI
    • Franklin Co
    • Jefferson Co
    • St Charles Co
    • St Louis
    • St Louis Co
• Jersey Co, IL 1-hour Ozone Maintenance Area
  • ILLINOIS
    • Jersey Co
• East-West Gateway Council of Governments
  • ILLINOIS
    • Madison Co
    • Monroe Co
    • St Clair Co
  • MISSOURI
    • Franklin Co
    • Jefferson Co
    • St Charles Co
    • St Louis
    • St Louis Co