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This study aims to determine the background levels of tritium radioisotope in drinking and seawater samples of Sinop province before the nuclear power plant was established in Sinop. In this context, a total of 174 water samples were collected, these are as follows: nine drinking water samples from the Sinop center and districts and 165 seawater samples from the seacoast from Samsun to Kastamonu. Tritium concentrations in the collected water samples were measured by the liquid scintillation counter. The minimum detectable activity for the method used was found to be 1.48 Bq/L. The tritium concentrations of the seawater and drinking water samples were found in the range of <MDA (minimum detectable activity)-6.29 Bq/L and 2.45–3.17 Bq/L, respectively. In addition, the annual effective dose rates of the people consuming these drinking waters due to the tritium radioisotope were calculated separately for infants, children and adults and found to be 12.12, 16.96 and 35.38 nSv, respectively.

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本研究旨在确定锡诺普核电站建成前锡诺普省饮用水和海水样品中氚放射性同位素的背景水平。在此背景下，共采集了 174 个水样，其中包括：来自锡诺普中心和地区的 9 个饮用水样本以及来自萨姆松至卡斯塔莫努海岸的 165 个海水样本。通过液体闪烁计数器测量收集的水样中的氚浓度。所用方法的最小可检测活性为 1.48 Bq/L。海水和饮用水样品的氚浓度分别在<MDA（最低可检测活性）-6.29 Bq/L 和2.45-3.17 Bq/L 范围内。此外，分别计算了饮用这些饮用水的婴儿、儿童和成人的氚放射性同位素的年有效剂量率，结果分别为12.12、16.96和35.38 nSv。