Parametrization of DUPS - case study Norrköping

The main purpose to utilize a complete chain of models for the release of hazardous substances is to study the final injury outcome in the same way as the main purpose of preventive society planning is to minimize the injury outcome of such events. The expression "a complete chain of models" refers to source modelling, dispersion modelling, and finally effect modelling on the receptors. In the interface between dispersion and injury assessments lies an exposure calculation which in a scenario depends highly on the geographic positions of the receptor, in this case the humans present in the area of interest, and their behavior. The population model DUPS has here been parameterized for the city of Norrköping and a motion model has been generated and used in a scenario including a chemical accident where a cloud of sulphur dioxide is transported over the central parts of the city. In a comparison between the injury outcomes when a static or dynamic population model is used the results differentiate substantially which is an phenomena that should be considered in the decision on what kind of population model to include in a scenario or in a risk assessment study as well as in the subsequent analyzes.