Exceptional Air Quality Events R. B. Husar , Washington U.; R.L Poirot , Vermont Dep. Env. Cons.; N. Frank , US EPA Fall AGU, Dec 14, 2007, San Francisco AQ Exceedances due to Natural/Non-recurring Events Requirements for EPA Regulatory Analysis: Analysis Tools and Methods Goal: Understand, quantify AQ impact of Events Approach: ‘ Harvesting’, aggregating resources Use a collaborative wiki workspace Communal and individual analyses