摘要：Various harmful substances have been released into the environment due to increased occurrences of chemical accidents. However, only a limited number of the cases have been analyzed from the perspective of health and environmental risks to the general environment. In this study, we conducted questionnaire and interview surveys with site operators to collect information related to substance release processes and responses to them in past accidents. In addition, we extracted factors relevant to the emergency responses to the accidents and systematically analyzed the release processes.
