Innovation Center of the Faculty of Technology and Metallurgy, 11120 Belgrade, Serbia.
Faculty of Technology and Metallurgy, University of Belgrade, 11120 Belgrade, Serbia.
Mar Pollut Bull. 2021 Aug;169:112491. doi: 10.1016/j.marpolbul.2021.112491. Epub 2021 May 25.
Surface sediment from the Boka Kotorska Bay (Adriatic Sea) was analyzed for the content of technogenic cesium (Cs) and naturally occurring (K, Ra, Th, U) radionuclides. The activity concentrations of the radionuclides have been correlated with the major elements (Si, Al, Ca, Fe, K, Mg, Ti, P, Mn) content of sediment samples. The spatial interpolation identified primordial radioactivity more pronounced in the inland of the bay. Correlation and hierarchical cluster analyses clearly distinguished Ra, Th, and U from Cs. In addition, a strong association between primordial radionuclides and most major elements was found. Positive matrix factorization apportioned technogenic and natural radionuclides sources, while Si and Ca were separated from other elements. Radiological hazard parameters (Ra, D, AEDE, H, H, AGDE, AUI) that include the doses and indices, and the excess lifetime cancer risk indicate that the risk in the studied area due to gamma radiation is within the acceptable level.
波卡·科托尔斯卡湾（亚得里亚海）的表层沉积物中分析了人为铯（Cs）和天然存在的（K、Ra、Th、U）放射性核素的含量。已将放射性核素的活性浓度与沉积物样品中主要元素（Si、Al、Ca、Fe、K、Mg、Ti、P、Mn）的含量相关联。空间插值确定了海湾内陆放射性元素更为明显。相关和层次聚类分析清楚地区分了 Ra、Th 和 U 与 Cs。此外，还发现原生放射性核素与大多数主要元素之间存在很强的相关性。正向矩阵分解分配了人为和天然放射性核素的来源，而 Si 和 Ca 则与其他元素分离。包括剂量和指数在内的辐射危害参数（Ra、D、AEDE、H、H、AGDE、AUI）以及超额寿命癌症风险表明，由于伽马辐射，研究区域的风险处于可接受水平。
