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5B a - RA/ Ranking and Chemical Specific (TUP/199) Spatially Resolved Multimedia Environmental Fate Model (G−CIEMS) on GIS−base Risk Assessment System − Methods. Suzuki, Noriyuki1, Murasawa, Kaori1, Nansai, Keisuke1, Sakurai, Takeo1, Matsuhashi, Keisuke1, Yuichi, Moriguchi1, Tanabe, Kiyoshi1, Nakasugi, Osami1, Morita, Masatoshi1, 1 National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan ABSTRACT- A spatially resolved multimedia environmental fate model was developed on the GIS (Geographical Information System)− based risk assessment framework system (Virtual World system). The Virtual World system is a comprehensive framework for the risk assessment and management of chemicals on GIS. The system is now being developed based on the several to tenth of basic data structure for the relevant databases in the system, which enables the transformation among databases with different data structures. The spatially resolved multimedia fate model (G−CIEMS, Grid−Catchment Integrated Modeling System) was developed sharing the basic data structure with the Virtual World system as a development basis. The G−CIEMS model is a geo−referenced fate model based on the river catchment, river and air grid structures, all of which are sharing data structure with Virtual World system framework and it is not a stand-alone modeling system with specific data−handling functions. Basic data structures are mainly directly prepared from the digital geographical information that can be used in Japan. This means that the data structure in Virtual World system is essentially common at least within Japanese GIS dataset. This structure and methods will enable, for example, the practical preparation of geo−referenced emission data from any statistical/monitoring based estimation output through necessary transformation, and also will enable the use of output data to assessment based on demographic/land−use specific basis through necessary transformation. The structure and methods of the G−CIEMS model and also the basic design of data structure of the Virtual World system concerning G−CIEMS models will be described in the presentation. Key words: River catchment, Multimedia Model, Gridded air, Risk assessment framework |
