National Atmospheric Deposition Program 2013 Annual summary

During 2013, 208 journal articles and reports were published using the NADP data.• Two new text books used NADP information during 2013: (Millard’s Probability, Statistics and Information, and Harris’ Exploring Chemical Analysis [in Chinese]) as well as two dissertations and one thesis (Hale, Arizona State University; Fleming, Virginia Polytechnic Institute and State University; Jones, Virginia Polytechnic Institute and State University). • Methyl mercury wet deposition data were first published in an NADP annual summary. See the cover and page 22 for more information.• The NADP’s Fall Meeting and Scientific Symposium was held in Park City, UT (Oct. 8-11, 2013) and focused on “Western U.S. Monitoring and Analysis: Progress and Current Issues”. The meeting included 90 attendees (attendance was limited by the federal government shutdown), eight sessions, 44 oral presentations, and 37 posters. A webcast of the presentations was provided, an NADP first. On Friday, October 11, a special Nitrogen Flux Workshop was held. The workshop included discussions of U.S. nitrogen flux budgets, the increasing importance of ammo-nia, and the flux of organic nitrogen.