Michigan Department of Environmental Quality Air Quality Division

STATE IMPLEMENTATION PLAN SUBMITTAL FOR FINE PARTICULATE MATTER (PM2.5)

Michigan Department of Environmental Quality Air Quality Division P.O. Box 30260 Lansing, Michigan 48909 http://www.michigan.gov/deqair

May 15, 2008

Table of Contents 1. 2.

Executive Summary...................................................................................... 1 Background and Overview of the PM2.5 Rule.............................................. 13 2.1 General Background/History of the PM2.5 Rule ................................ 13 2.2 Michigan Nonattainment Areas........................................................ 13 3. General Planning Provisions ...................................................................... 17 4. State Implementation Plan Approval and Compliance with CAA Section 110 and Part D Requirements. ...................................................... 18 5. Local Planning ............................................................................................ 19 6. Monitoring................................................................................................... 20 7. Emissions Inventory ................................................................................... 21 8. Transportation Conformity Budget.............................................................. 24 9. Weight of Evidence (WOE)......................................................................... 25 9.1 Fine Particulate Matter..................................................................... 26 9.2 Emissions ........................................................................................ 27 9.3 Monitoring ........................................................................................ 29 9.4 Organic Carbon: More Study Needed.............................................. 32 9.5 Modeling .......................................................................................... 33 9.5.1 Photochemical Modeling .................................................... 33 9.5.2 Local Scale Dispersion Modeling ....................................... 35 9.5.3 Combined Modeling Results............................................... 42 10. Attainment Strategy .................................................................................... 44 10.1 Implementation of National Controls ................................................ 44 10.2 Implementation of Local Controls .................................................... 45 10.3 Voluntary Measures ......................................................................... 48 10.4 Tracking Progress and Continuing Evaluation ................................. 49 11. RACT and RACM ....................................................................................... 50 11.1 RACT-RACM Modeling.................................................................... 50 11.2 NOx RACT-RACM Analysis............................................................. 53 11.3 SO2 RACT-RACM Analysis ............................................................. 58 11.4 PM2.5 RACT-RACM Analysis ........................................................... 60 12. Reasonable Further Progress (RFP) Requirements................................... 64 13. Contingency Measures............................................................................... 65 13.1 Tier I ................................................................................................... 65 13.1 Tier II .................................................................................................. 65 References............................................................................................................ 70

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Figures Figure 1.a Figure 1.b Figure 1.c Figure 1.d Figure 1.e Figure 1.f Figure 1.g Figure 1.h Figure 1.i

Southeast Michigan PM2.5 Nonattainment Area ................................. 1 3-year Average PM2.5 Levels: Toled