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Qualitative and Semi-Quantitative Methods for Natech Risk Assessment

Abstract: 
Risk assessment is a prerequisite for understanding the Natech risk and for determining if and which prevention and preparedness measures should be implemented to reduce the risk. The analysis of multi-hazard risks is a highly complex task and there is no consolidated methodology for assessing the Natech risk. This chapter introduces selected qualitative and semi-quantitative Natech risk analysis methodologies, approaches and tools of varying levels of resolution. The outcome of these methodologies can be used for evaluating the risk in accordance with the risk acceptability criteria in place.