Application of the CALPUFF model in emergency response assessment for radiological events in metropolitan area.

Abstract Due to the possibility of radioactive events or dirty bomb events occurring in urban areas near buildings with a relatively small impact radius (within 1-2 kilometers), an effective and rapid assessment of their extent and impact is essential for emergency response strategies. In this research, the CALPUFF model is introduced as the basis for conducting a series of tests and improvements to create a localized radioactive events impact assessment system. The CALPUFF model is recommended by the US EPA and will be combined with meteorological data from the Central Weather Bureau's mesoscale numerical weather forecast model and terrain data with a 30-meter horizontal resolution from Taiwan's Ministry of the Interior. This localized system aims to simulate and predict the outdoor radiation intensity or pollution range for future scenarios, reducing the health risks and pressure on emergency personnel exposed to radiation, and facilitating necessary protective action decisions.