Abstract:
Since the Fukushima Daiichi Nuclear Power Plant accident in March, 2011, large amounts of artificial radionuclides have been released into atmosphere and ocean. In recent years, the Nuclear Power Plant began to directly discharge the Fukushima nuclear polluted water into the North Pacific, which will result in irreversible effects on the marine environment. Based on the studies using the observed drifter data, cruise data and numerical simulations, this paper reviews on studying the possible transport path of the discharged Fukushima nuclear polluted water into the ocean, revealing that the transport paths are significantly affected by the Kuroshio, Kuroshio recirculation and westward propagating mesoscale eddies. However, these studies still have certain limitations due to the difficulty in data acquisition and the insufficiency of model accuracy. Future research should strengthen interdisciplinary cooperation, further improve the accuracy and reliability of models, and establish long-term monitoring and risk management systems to better cope with the potential impacts of the discharge of Fukushima nuclear polluted water into the ocean.