Shore areas of Bangladesh are a landform along the shoreline of the Bay of Bengal. Cox’s Bazar is one of the most important tourist places. Every year a large number of visitors both local and foreigners come to visit sea-beach of Cox’s Bazar for its attractive natural beauties. The particles comprising soil of the beach areas are full of pollutants which are transferred from sea to land and land to sea due to high tide or low tide. These pollutants may be the source of radio-nuclides having different half-lives. On the other hand, natural radio-nuclides accumulate in soil of beaches due to cosmic radiation, naturally occurring radioactive materials, man-made fallout from nuclear weapons testing and nuclear accidents. Whatever may be the sources of the radio-nuclides, they should be found out so that necessary actions can be taken to keep both visitors and local peoples of beach areas safe. The objectives of the research work was to investigate the radio-nuclides present in soil of sea- beach areas. This research work was carried out on some soil samples of sea-beach areas in the Accelerator Facilities Division of Atomic Energy Centre Dhaka. The gamma-ray spectroscopy system was used for the measurement of radioactivity. In this procedure HPGe detector was used with other experimental setup. The radio-nuclides 133Ba, 234Th, 212Bi, 124Sb, etc. were detected.

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