Simulation of I-131 Dispersion around KNS (Kawasan Nuklir Serpong) using Gaussian Plume Model

There are many software-based tools that can be used to evaluate the radio-ecological impacts. Plume Gaussian is a simple dispersion model, easy to be implemented and developed further. This paper describes the application of Plume Gaussian model to simulate the dispersion of I-131 released around the Serpong Nuclear Area (Kawasan Nuklir Serpong, KNS). The software development consists: mathematical model derivation and software implementation. The designed model was tested using the real data from six monitoring location of I-131 released from exhaust stack of PT. INUKI in KNS. Plume Gaussian model shown good opportunity to be used for evaluation of radiation impact to the environment. It also shown that the more complete of meteorological data the more accurate the modeling result. Using meteorological data 2012–2013 simulation shown that radioisotope pollutants of PT. INUKI tend to lead between the north and northwest from the stack.