Updating of baseline radionuclides concentration in Jakarta Bay

Abstract

Abstract Jakarta Bay receives a variety of pollutants including radioactive substances originating from industry and operating the Serpong nuclear area in South Tangerang. Radionuclide types that have the potential to enter Jakarta Bay are anthropogenic or primordial radionuclides originating from the Serpong nuclear area and factory. Whereas the input of natural radionuclides originating from the use of industrial raw materials and terrestrial run-off. Monitoring is carried out twice a year on the coast of the bay of Jakarta. Monitoring results showed primordial radionuclide concentrations were in normal condition and originated from global fallout. This is shown from the ratio of 226Ra concentration which is the character of the Pacific Ocean before the nuclear accident at Fukushima. On the other hand, artificial radionuclides are in normal conditions and do not exceed the threshold.