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CAMx-PSAT Source Apportionment Modeling Results

CAMx-PSAT Source Apportionment Modeling Results. Stationary Sources Joint Forum Meeting November 14, 2006 Tempe, AZ. Source Apportionment Technique. CAMx air quality model with PM Source Apportionment Technology (PSAT) Tracks sources of sulfate and nitrate PSAT completed for 2 cases:

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CAMx-PSAT Source Apportionment Modeling Results

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  1. CAMx-PSATSource ApportionmentModeling Results Stationary Sources Joint Forum Meeting November 14, 2006 Tempe, AZ

  2. Source Apportionment Technique • CAMx air quality model with PM Source Apportionment Technology (PSAT) • Tracks sources of sulfate and nitrate • PSAT completed for 2 cases: • Plan 2002c • Base 2018b

  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. Contribution of Colorado Mobile Sources to January 2002 Average NO3 Concentration

  6. Contribution of Colorado Mobile Sources to January 2018 Average NO3 Concentration

  7. Contribution of Boundary Conditions to August 2018 Average SO4 Concentration

  8. Contribution of Canada Point Sources to August 2018 Average SO4 Concentration

  9. Contribution of CENRAP Point Sources to August 2018 Average SO4 Concentration

  10. Contribution of Mexico Point Sources to August 2018 Average SO4 Concentration

  11. Contribution of Pacific Ocean Sources to August 2018 Average SO4 Concentration

  12. Contribution of Colorado Point Sources to August 2018 Average SO4 Concentration

  13. Contribution of Wyoming Point Sources to August 2018 Average SO4 Concentration

  14. Summary • WRAP point sources are a significant contributor to SO4 and NO3 at many Class I areas • However, reasonable progress towards meeting natural conditions, especially beyond 2018, will require additional strategies.

  15. For More Information • Modeling results available at: • WRAP Technical Support System • http://vista.cira.colostate.edu/tss/ • WRAP Regional Modeling Center • http://pah.cert.ucr.edu/rmc/

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