1. Regional Air Quality Issues in the Midwest Rob Kaleel Lake Michigan Air Directors Consortium June 2, 2015

2. Overview Ozone, Fine Particles, and Regional Haze Modeling Challenges and Policy Mercury 2

3. Regional Planning Organizations

4. Nonattainment Areas for 2008 Ozone NAAQS St. Louis Sheboygan Chicago Dallas Upper Green River Basin Uintah Basin Denver Houston Memphis Baton Rouge Atlanta Cincinnati KnoxvilleCharlotte Columbus Cleveland Jamestown Pittsburgh Washington DC/VA Baltimore Seaford DE New York Philadelphia Greater Connecticut Allentown Dukes MA Lancaster Reading Phoenix San Diego Calaveras Co San Luis Obispo Tuscan Buttes Ventura Co Morongo Tribe Pechanga Tribe Chico Mariposa Co San Francisco Sacramento San Joaquin Valley Riverside Co Nevada Co LA-South Coast West Mojave E. Kern Co Imperial Co

5. 8-Hour Ozone Design Value Trends LADCO States Ozone Concentration, ppm

6. 2012-2014 8-Hour Ozone Design Values

7. 7 2014 4 th high 76 ppb

8. Proposed 8-Hour Ozone NAAQS - 70 ppb

9. Proposed 8-Hour Ozone NAAQS - 65 ppb

10. 10

12. Source: Brad Pierce, NOAA Model Performance Issues: Characterizing the Lake Breeze

13. Model Performance Issues: Too much NOx? Source: Brad Pierce, NOAA

14. Typical Summer Day NOx Emissions (tons/day) Chicago Ozone Nonattainment Area - 2011 Source: Illinois EPA

15. Model Performance Issue: Importance of Boundary Conditions

16. 75 ppb O 3 threshold Contribution to Ozone – Harford, MD

17. Model Performance Issue: Ammonia Emissions – Winter Nitrate Events

18. Source: NADP ISWS Annual Ammonia Emissions - 2002

20. Mercury Wet Deposition Monitoring in the Midwest

21. LADCO sponsored seminar: Mercury in the Midwest August 20-21, 2015 Hyatt Regency Indianapolis One South Capitol Avenue Indianapolis, IN Contact Donna Kenski: kenski@ladco.org

22. Questions? Rob Kaleel – LADCO kaleel@ladco.org 847-720-7880 22