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Air Resource Specialists, Inc.

Overview of ARS Presentations and Review of EI Data Sets AoH Meeting, Salt Lake City September 21-22, 2004. Air Resource Specialists, Inc. Overview. Part 1 (Today) WRAP Strategic Plan, Phases 1 & 2 Review of Emissions Inventory data used as inputs for interim modeling efforts

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Air Resource Specialists, Inc.

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  1. Overview of ARS Presentationsand Review of EI Data SetsAoH Meeting, Salt Lake CitySeptember 21-22, 2004 Air Resource Specialists, Inc.

  2. Overview • Part 1 (Today) • WRAP Strategic Plan, Phases 1 & 2 • Review of Emissions Inventory data used as inputs for interim modeling efforts • Review of basic EI summaries • Suggestions for better resolution of EI data • Part 2 (Today) • Incorporating monitoring, modeling and EI data into AoH analysis • Discussion of regional site clusters • Part 3 (Tomorrow) • Review of AoH report outline

  3. WRAP Strategic Plan

  4. Phase I – Data Sets • Emissions Inventories • Currently available • Modeling Data • RMC to present some results tomorrow (9/22), more by November • Monitoring Data • IMPROVE aerosol data available. DRI to present regression analyses at AoH workgroup meeting in November.

  5. Emissions Data Set • EPA 2002 NEI not available until 12/05 → WRAP facilitated development of “interim” 2002 Emissions • Point • Area • Mobile (On-Road & Non-Road) • Road Dust (Paved & Unpaved) • Fire • Windblown Dust • Biogenics • Modeling Domain Boundary Conditions

  6. Point and Area Sources (EH Pechan) • EI includes US States, Canada and Mexico

  7. Mobile Sources (ENVIRON) • Emissions were estimated for the 1996 base year and four future years – 2003, 2008, 2013, 2018 • 2003 Emissions used for “interim” 2002 • On-road (EPA MOBILE6 and PART5) • Off-road (EPA NONROAD2000) • Road Dust (interpolated between 1996 and 2018) • One known limitation: • For off-road emissions, NONROAD2000 overestimates VOC (~13%), NOx (~35%), PM2.5 (~28%) and SO2 (~72%). • CA provided estimates directly, so these errors don’t apply to CA • EI includes US States, Canada and Mexico

  8. EI Coverage for Point, Area and Mobile Sources

  9. Fire Emissions (WRAP) • Actual 2002 wildland fire and prescribed fire emission inventories • Specific location, date, size and fuel loading for each fire event. • EI includes WRAP states only

  10. Windblown Dust (RMC) • Modeled using: • Land Use/Land Cover (LULC) • BELD3, NALCC, NLCD • Soil Characteristics • STATSGO; Soil Landscape of Canada; Intl. Soil Reference and Information Centre • Meteorological Data • 2002 36-km MM5 • Agricultural Data • BELD3, RUSLE2, CTIC • EI includes modeling domain

  11. Biogenics Emissions (RMC) • Biogenic Emissions Inventory System (BEIS3) • Vegetation Data: Biogenic Emissions Landuse Database (BELD3) • Meteorological Data (MM5v3) • Biogenic Emissions Inventory System (BEIS3) • EI includes US states

  12. Boundary Conditions (RMC) RMC: http://pah.cert.ucr.edu/vistas/inputs/gifs/BC/vistas.geoschem.mean.so4.gif

  13. Pie Chart Representation of Area Emissions by State/Province

  14. Pie Chart Representation of Fire Emissions by State

  15. Gridded Representation of CMAQ Wind Blown Dust Model Emissions Inputs RMC: http://pah.cert.ucr.edu/aqm/308/wb_dust2002/scen_d/PMFINE/PMFINE_yearly.scen_d.gif

  16. County-level Representation of CO Area Source NOX

  17. WRAP States Representation of Emissions

  18. WRAP States Representation of Emissions

  19. California Emissions Comparison • EI comparison: WRAP interim 2002 and CA reported 2003 • Differences in EI reporting: • Differences in point and area binning • CA reports reactive organic gases (ROG), WRAP reports volatile organic compounds (VOC) - specific pollutants differ in some cases • CA reports SOx, WRAP reports SO2 • EI comparison reasonable, consistent with known differences

  20. California Emissions Comparison

  21. EI Temporal and Spatial Resolution • 2002 interim modeling efforts utilize temporal and spatial resolution of EI data for states and boundary conditions • Level of detail of EI temporal and spatial resolution in summary products to be determined by AoH Work Group (opinions?) • Following examples can be generated for all pollutant sources/states

  22. ↑ ~9000

  23. CO Area Source NOX (Hatch)

  24. CO Area Source NOX (Density)

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