Project Overview Washington Dulles International Airport (IAD) chosen after extensive screening process –428,482 operations in 2007 (TAF, 2007) –Located in non-attainment area (8h O 3 and PM 25 ) –Willingness of airport authority to work with us –Strong seasonality –Less interference issues from non-airport sources, and Easy Access Conduct measurement campaigns for three seasons –Apr 2009 (Spring), Jan 2010 (Winter), July 2010 (Summer) Air quality modeling using –Source-oriented models (CMAQ and AERMOD) –Receptor-oriented models (PMF) Page 5
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