Determination of natural radioactivity level of Abana-Catalzeytin/Kastamonu regions

People; they are exposed to continuous natural sources of radiation, although their life standards vary depending on the physical characteristics and geographical conditions of the environment in which they live. The greatest contribution to natural radiation comes from radioactive elements such as 238U, 232Th which are naturally found in nature, and their degradation products226Ra, 222Rn and 235U and 40K. In the literature, studies are being carried out with the aim of determining the risks that people are exposed to from natural radiation. The aim of this study is to determine the level of radiation at the bottom level in the soil and coastal sand of the Abana-Çatalzeytin region of Kastamonu province. For this purpose, natural (238U, 232Th and 40K) radioactivity concentrations were determined in 20 soil and 20 coastal sand samples taken and the absorbed dose rates and annual effective dose equivalent were calculated and the radiological hazards evaluated using the obtained results. In addition, particle size analysis of coastal sand was performed and samples of 4 different sizes (pebbles, sand, alluvial and clay) were obtained and their natural (238U, 232Th and 40K) radioactivity concentrations were determined.