Concentration of Selected Radionuclides in Sediment and Surface Seawater in Belitung Island, Indonesia

Global fallout radionuclides were injected into the oceansmainly in the late 1950s and early 1960s, after largescale atmospheric nuclear weapons tests were carried out. The highest deposition occurred in the mid-latitudes of the western North Pacific Ocean and Western North Atlantic Ocean. The global sea water exchange between the different oceans plays an important role in the movement mass, heat and other substances include anthropogenic matters. As a part of the Indonesian maritime continent, Karimata Strait where the Belitung Islands lied, plays an important role as a transfer matters of the oceanic conjunction between Pacific and Indian Ocean. No baseline existed for the radionuclides in Belitung Island, where the baseline study is imperative to create a reference and to record the influence functioning of upcoming power plants. The present baseline concentration of the considered radionuclide’s show low concentration of
cesium and plutonium in sediment and surface seawater and their concentration is comparable to most oceanic waters.
Keyword: Plutonium, cesium, baseline data, Belitung Island, Karimata Strait