1. Technical Projects Update WRAP Board Meeting Salt Lake City, UT November 10, 2004

2. Presentation Topics Technical Projects – 2004 Accomplishments  Attribution of Haze  Dust  Emissions  Fire  Modeling  Monitoring & Reporting  Stationary Sources – already covered  Tribal Data Development

3. Attribution of Haze Project Attribution of Haze Workgroup:  Phase 1 Draft report – present at SSJF/IWG meeting 12/14  Review and comment - Final report late 1/05  Uses integrated “weight of evidence” analysis of 3 major data types (monitoring, modeling, emissions inventories)  Determines geographic origins and source type contributions to impairment at all federal and tribal Class I areas

4. Attribution of Haze Project  Attribution of Haze Workgroup:  Outcomes:  Phase 1 report - Identifies key source types and regions for states and tribes to address in 2007 plans  Provide early input to guide policy development  Template for Phase II attribution of haze project to assess visibility changes from 2018 control strategies

5. Attribution of Haze Project 2002 Annual SO 2 Emissions by Modeling Grid Cell (tons/year)

6. Attribution of Haze Project 2002 Worst Days’ Monitored Light Extinction by Sulfate (Mm -1 )

7. Attribution of Haze Project 2002 Worst Days’ Monitored Total Light Extinction (Deciviews)

8. AoH Project Example Draft Class I area report

9. Dust Emissions Projects Dust Emissions Joint Forum:  Causes of Dust Haze in the WRAP Region (DRI) Preliminary categorization – monitoring sites where dust was the principal cause of haze on a worst visibility day Transcontinental Events Windblown Dust Events (Local and Regional) Wildfire Events influencing apparent dust concentration

10. Dust Emissions Projects Dust Emissions Joint Forum:  Windblown Dust Emissions Model (Regional Modeling Center) Phase 2 of project – added several improvements Testing of results to improve performance compared to monitor data  Analysis of the Fine Fraction of Particulate Matter in Fugitive Dust (RFP released 10/21)  Evaluation and Implementation of a Dust Definition for the WRAP (RFP released 10/28)

11. Emissions Forum Projects Emissions Forum:  Emissions Data Management System State/tribal/local 2002 inventories loaded Independent beta testing, additional functions being added Website on-line 12/04  Alaska projects Emissions inventories for representative Alaska native villages Aircraft emissions

12. Emissions Forum Projects Emissions Forum:  Acquired improved Canada [2000] & Mexico [1999] emissions inventories  Mobile source emission inventories update project scope  Supporting access to completed projects by the Sources In & Near Class I areas Forum Final micro-inventories for emissions in 8 parks Final characterization of emissions near all western Class I areas (based on1996 data, to be updated with 2002 data)

13. Fire Emissions Projects Fire Emissions Joint Forum:  2002 national wildfire emissions (WRAP lead)  2002 wild, ag & prescribed fire inventories [extensive QA/QC for activity data with states/tribes/FLMs] ** review underway now **  Final 2002 inventories - 12/04  Tested/improved fire emissions estimation tools

14. Fire Emissions Projects Fire Emissions Joint Forum:  Developed scope of work for planning inventories 2000-04 baseline period 2018 projection year scenarios  Developed approach to quantify Emissions Reductions Techniques adopted by §309 states  Fire Emissions Sensitivity modeling analyses

15. Modeling Technical Projects Air Quality Modeling Forum:  Multiple simulations by Regional Modeling Center  Implemented improved data and tools Meteorological model [MM5] Emissions from other RPOs Improved emissions for ammonia, biogenics, and windblown dust  Geographic source apportionment work for AoH project

16. Modeling Technical Projects Air Quality Modeling Forum:  Alaska modeling Developed MM5 modeling protocol Starting sensitivity runs using Alaska emissions data Deliverables in April 2005  Training Provided as part of AoH project Exploring other options to provide more training and access to results  Fire Sensitivity Modeling Assess modeled impact of changes in fire inventories

17. Alaska modeling region (red box, approximate) WRAP Region fine grid (blue) North American coarse grid (red) WRAP Modeling Regions

18. Monitoring & Reporting Projects Ambient Monitoring & Reporting Forum:  VIEWS database/webpage – inter-RPO project Moved to direct EPA funding on behalf of RPOs during 2004 RPOs have requested that EPA fund starting in 2006  Causes of Haze Assessment Extensive database of monitoring and meteorological data online Back trajectory regression modeling analyses identify source regions for AoH project

19. Monitoring & Reporting Projects Ambient Monitoring & Reporting Forum:  Natural Haze Levels Assessment Inter-RPO project, WRAP lead Analyze which natural emissions species are sensitive to changes, and by how much Work underway, results available Spring 2005  Review of regional haze light extinction algorithm by IMPROVE Steering Committee

20. Tribal Data Development Projects Tribal Data Development Workgroup:  Implement and support use of TEISS tool  Developing emissions inventories for stationary sources on tribal lands (coordinated with Stationary Sources and Emissions Forums project)  Causes of Haze Assessment for tribal lands