Preliminary Evaluation of the DUSTRAN Modeling Suite for Modeling Atmospheric Chloride Transport

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• 作者：Philip Jensen ; Tracy Tran ; Bradley Fritz…
• 关键词：Air quality ; Sea salt aerosol ; Atmospheric modeling
• 刊名：Air Quality, Atmosphere & Health
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：10
• 期：1
• 页码：25-31
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Environmental Health; Atmospheric Protection/Air Quality Control/Air Pollution; Health Promotion and Disease Prevention;
• 出版者：Springer Netherlands
• ISSN：1873-9326
• 卷排序：10

文摘

This study investigates the potential of DUSTRAN, a dust dispersion modeling system developed by Pacific Northwest National Laboratory, to model the transport of sea salt aerosols (SSA). Results from DUSTRAN simulations run with historical meteorological data were compared against privately-measured chloride data at the near coastal Maine Yankee Nuclear Power Plant (NPP) and the Environmental Protection Agency-measured CASTNET data from Acadia National Park (NP). The comparisons have provided both encouragement as to the practical value of DUSTRAN’s CALPUFF model and suggestions for further software development opportunities. All modeled concentrations were within one order of magnitude of those measured and a few test cases showed excellent agreement between modeled and measured concentrations. However, there is a lack of consistency which may be due to inaccurate extrapolation of meteorological data, underlying model physics, and the source term. Future research will refine the software to better capture physical phenomena. Overall, results indicate that with parameter refinement, DUSTRAN has the potential to simulate atmospheric chloride transport from known sources to inland sites for the purpose of determining the corrosion susceptibility of various structures, systems, and components (SSC) at near coastal sites, and for other relevant air quality studies.