Środowisko i energia · 26/02/2026
Air Plan Approval; Illinois; Clean Data Determination for the Illinois Portion of the St. Louis Area for the 2015 Ozone Standard
The Environmental Protection Agency (EPA) proposes to determine that the Illinois portion of the St. Louis area has attained the 2015 ozone National Ambient Air Quality Standards (NAAQS) based on air monitoring data and an exceptional events request.