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CAMx-PSAT Source Apportionment Modeling Results

CAMx-PSAT Source Apportionment Modeling Results. Stationary Sources Joint Forum Salt Lake City, UT August 17, 2006. Source Apportionment Technique. CAMx air quality model with PM Source Apportionment Technology (PSAT) PSAT being completed for 2 cases: Plan 2002c Base 2018b

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CAMx-PSAT Source Apportionment Modeling Results

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  1. CAMx-PSATSource ApportionmentModeling Results Stationary Sources Joint Forum Salt Lake City, UT August 17, 2006

  2. Source Apportionment Technique • CAMx air quality model with PM Source Apportionment Technology (PSAT) • PSAT being completed for 2 cases: • Plan 2002c • Base 2018b • Tracks sources of sulfate and nitrate • Tracking organic carbon too computationally intensive. However, data is available that delineates primary OC, from biogenic SOA, and anthropogenic SOA.

  3. 18 Source Regions on a 36 km Grid

  4. Eight Source Categories • Examples of PSAT “sources”: • MV_CO = mobile sources in Colorado • PT_CE = point sorces in CENRAP • BCON = transport from modeling domain boundaries (derived from GEOS-CHEM)

  5. Status of Modeling • Plan 2002c just completed • Base 2018b to be completed by end of August • Several months currently completed • Results currently available for daily and monthly averages • Results will be provided for 20% best and worst visibility days at each Class I area

  6. Alternative Formats forPresenting Results • All examples are for July SO4 • All examples pair 2002 and 2018 on same chart • Format 1: Top 10 sources (TONT, GRCA, ROMO, BADL) • Format 2: By source region (BADL) • Format 3: By source category (BADL) • Format 4: By source “controlability” (BADL)

  7. Current Format

  8. Alternate Format 1 – Top 10 Sources

  9. Alternate Format 1 – Top 10 Sources

  10. Alternate Format 1 – Top 10 Sources

  11. Alternate Format 1 – Top 10 Sources

  12. Alternate Format 2 – By Region

  13. Alternate Format 3 – By Category

  14. Alternate Format 4 – By “Controlability”

  15. Slight Decrease in WRAP SO2

  16. Slight Decrease Due ToLarge Mobile Source Reduction + Modest Point/Area Source Increase

  17. Why Do Area Sources Increase?

  18. Why Do Point Sources Increase?

  19. For further background information and data on PSAT: • http://pah.cert.ucr.edu/aqm/308/cmaq.shtml#CAMxBase18b

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