Integration of marine food chain model POSEIDON in JRODOS and testing<i>versus</i>Fukushima data

The marine box model POSEIDON-R was integrated into the JRODOS decision support system. The POSEIDON-R dynamic food web model was extended by a benthic food chain to describe the migration of radionuclides from contaminated bottom sediments to marine organisms. The model was validated using experimental data from the Fukushima accident. Simulated concentrations of 137Cs in water, bottom sediments and marine organisms are in good agreement with measurements. An example of application of JRODOS was demonstrated for Acerinox incident (Spain, 1998).