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Midwest RPO Status

This report details a comprehensive assessment of ammonia emissions and their impact on air quality in the Midwest, utilizing various meteorological and emissions models such as MM5, EMS-2003 V3, CAMX, and CMAQ. It covers significant evaluation episodes from July 1999 to August 2001 and offers insights into future projections based on modified EPA and CMU ammonia inventories. The study highlights important temporal modifications and emphasizes the role of human activity in ammonia emissions while excluding natural sources. It presents findings relevant to policymakers and air quality researchers.

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Midwest RPO Status

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  1. Midwest RPO Status Mark Janssen – LADCO/Midwest RPO

  2. Models • MM5 – Meteorology • EMS-2003 V3 -- Emissions • CAMX – Core Model • CMAQ, REMSAD– Evaluation

  3. Episodes • July/Aug 1999 • January/February 2000 • June/July/August 2001 • Annual 2002 • Future? Annual 2001,2002, and 2002

  4. Base E Ammonia Inventory • EPA-NEI 1999, Canada 1995 • NH3 Based on CMU ammonia inventory • Significant Temporal Modification • Industrial point from modified EPA inventory(-52%) • No Natural Soil NH3, Humans, Cats, Dogs • Modified EGU temporal based in CEM

  5. Comparison with Inverse Model From Rob Pinder- CMU

  6. CEM Sensitivity (aug 99) PPB

  7. Modeling Schedule • Base F In Jan/Feb- Draft 2002 from EPA • 2002 CERR Inventory July 2004 • Intensive base case modeling Fall 2004 • Strategy Spring 2005

  8. MWRPO Support Framework Hardware Operational Contractor Academia CMAS RPO Staff States Science $ Modeling Runs

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