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Area and Point Sources Reconciliation

Area and Point Sources Reconciliation. Vijay Bhargava Emission Inventory Workshop Air Resources Board March 13, 2006. Area Sources. Definition Importance of updates Significance of Methodologies Reconciliation With Point Sources. Definition of Area Sources.

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Area and Point Sources Reconciliation

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  1. Area and Point Sources Reconciliation Vijay Bhargava Emission Inventory Workshop Air Resources Board March 13, 2006

  2. Area Sources • Definition • Importance of updates • Significance of Methodologies • Reconciliation With Point Sources Emission Inventory Workshop Spring 2006

  3. Definition of Area Sources • Emissions not reported in the point source inventory Emission Inventory Workshop Spring 2006

  4. Area Source Categories • Stationary Sources\Aggregated Point Sources • Areawide Sources • Mobile Sources • Natural Sources Emission Inventory Workshop Spring 2006

  5. Importance of Area Source Updates • Reconciliation with point sources • Planning inventories • Toxic area source inventories • Area source contribution to the total inventory Emission Inventory Workshop Spring 2006

  6. Change in ROG Emissions by Source Category 1999-2010 1999 2010

  7. Significance of Methodologies • Document emission estimation method • Form a source pool for others to use • Clearinghouse Emission Inventory Workshop Spring 2006

  8. Unreconcile Emissions Emission Inventory Workshop Spring 2006

  9. Reconciliation • Purpose of reconciliation • To avoid double counting of emissions • Procedure for reconciliation • Step 1: • sum all point source emissions for the same area source EIC Emission Inventory Workshop Spring 2006

  10. Reconciliation • Step 2: • Subtract point source sum from the unreconciled (total) emissions for the same area source EIC • Step 3: • Back calculate the reconcile process rate by dividing the emissions by the emission factor • Choose the pollutant with the highest emissions Emission Inventory Workshop Spring 2006

  11. Reference Introduction to Area Source Emission Inventory Development Prepared by: Eastern Research Group, Inc Prepared for: Area Source Committee Emission Inventory Improvement Program January 2001 http://www.epa.gov/ttn/chief/eiip/techreport/volume03/index.html Emission Inventory Workshop Spring 2006

  12. Reference Areawide Source Methodologies California Air Resources Boardhttp://www.arb.ca.gov/ei/areasrc/areameth.htm Emission Inventory Workshop Spring 2006

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