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Maintenance Plan for the Chicago Nonattainment Area for the 1997 PM2.5 National Ambient Air Quality Standards (Revised)

 
 Volume/Number:  2011 August 17 
 Issuing Agency:   
 Description:  This document describes Illinois Maintenance Plan for the Illinois portion of the Chicago fine particulate matter (PM2.5) nonattainment area (NAA), hereafter referred to as the Chicago NAA. An approved Maintenance Plan is required before an area can be redesignated from nonattainment to attainment of a National Ambient Air Quality Standard (NAAQS). This document provides technical information required to support a request to redesignate the Chicago NAA to attainment of the 1997 annual PM2.5 NAAQS. This revision incorporates motor vehicle emissions estimates developed using the U.S. EPAs MOVES model. 
 Date Created:  09-17-2015 
 Agency ID:  AQPSTR 11-07 
 ISL ID:  000000056954   Original UID: 177964 FIRST WORD: Maintenance