2010 Annual Report 1a.Objectives (from AD-416) Combine the Erosion submodel of the Wind Erosion Prediction System (WEPS) coupled with the Meteorology, Chemistry, and Climate Model (MCCM) to simulate emission and regional transport of fine dust from agricultural fields. 1b.Approach (from AD-416) Research studies will be conducted at both locations on developing systems to predict the generation and dispersion of fine particulates from agricultural lands. Research will be facilitated by exchanges of methodology for analysis and expertise in predicting regional fate of particulates generated from agricultural lands. 3.Progress Report ARS-EWERU scientist participated in collaborative research with scientists at the Center for Atmospheric Science at the National Autonomous University of Mexico (UNAM). This research included field studies in Mexico as well as laboratory studies and computer simulations in both Mexico and Manhattan, Kansas to develop a system to predict the generation and regional dispersion of fine particulates from agricultural lands. Site visits have been made to both Mexico City and Manhattan, Kansas by scientists at each location. A peer reviewed journal paper has been published on the work. Methods of monitoring this project included, discussing project plans, reviewing program goals and accomplishments with the Cooperator’s PI at ARS and collaborator facilities; stakeholders meetings; by teleconference, e-mail and other types of written correspondence; providing technical advice; and conducting site visits at Cooperator’s facilities.