1. National and Regional Summary of Alpine Geophysics/Environ Emissions Trends Reports, 1999-2010 Highlights of emission trend data for NOx, SO2, and VOCs, 1999-2010 Presentation to NARUC Subcommittee on Clean Coal and Carbon Sequestration July 22, 2012 Paul Loeffelman, Managing Director, Corporate External Affairs, American Electric Power phloeffelman@aep.com

2. Five Regions Analyzed

3. Condensed Emission Categories Coal-based Electric Generating Units (EGUs) Highway vehicles Off-highway vehicles Industrial fuel combustion & processes All other

4. Total U.S. NOx Emissions (In millions of tons/yr.)

5. Share of U.S. NOx Emissions by Source Category, 1999-2010

6. Percent Change in U.S. NOx Emissions, 1999-2010

7. Percent Change in Regional Coal-Based EGU NOx Emissions,1999-2010 Note: NE EGUs were subject to the OTC NOx MOU requiring 55%/65% NOx reductions from 1990 levels in 1999.

8. Total U.S. SO 2 Emissions (In millions of tons/yr.)

9. Percent Change in U.S. SO2 Emissions, 1999-2010

10. Percent Change in Regional Coal-Based EGU SO2 Emissions,1999-2010

11. Percent Change in Regional VOC Emissions 1999-2010

12. Percent Share of U.S. VOC Emissions by Source Category, 2010

13. U.S. NOx and VOC Emissions (Total manmade ozone precursor emissions) (In millions of tons/yr.)

14. Share of Total U.S. NOx and VOC Emissions by Source Category, 1999-2010

15. Percent Change in U.S. Total NOx and VOC Emissions, 1999-2010

16. Coal-Based EGU Percent of Regional NOx and VOC Emissions,1999-2010

17. Data report sources Analyses performed by Greg Stella, Alpine Geophysics phone 1.828.675.9045, gms@alpinegeophysics.com gms@alpinegeophysics.com Technical reports from Alpine analyses for national, regional and states’ trends available at http://www.midwestozonegroup.com/ http://www.midwestozonegroup.com/ One page reports for states from Alpine analyses available from jdavis@cleancoalusa.org, USB drives jdavis@cleancoalusa.org