在人类活动的影响下，放射性毒元素铯在地中海生物体内不断积累。
The anthropogenic radiotoxic element of Cs accumulate to biota in the Mediterranean Sea.
机构信息
Faculty of Engineering, University of Kyrenia, Kyrenia, TRNC, via Mersin 10, Turkey.
Institute of Physics and Technology, Ural Federal University, Yekaterinburg, Russia; Faculty of Science, Al-Azhar University, Assiut, Egypt.
出版信息
Mar Pollut Bull. 2021 Mar;164:112043. doi: 10.1016/j.marpolbul.2021.112043. Epub 2021 Jan 29.
The abundance of Cs radionuclide in the Mediterranean Sea has limited study despite its environmental effects in seafood chains. For this purpose, the activity concentration of Cs in sediment and seawater have been determined using a high-resolution HPGe gamma-spectrometry system. The average activity concentrations in sediment and water were 14.16 Bq kg and 1.74 mBq L, respectively. The results were used as input data of ERICA Tool modelling software to assess marine organisms' accumulation and dose. The highest and lowest accumulate activity concentration values were observed in birds (9.24E-01 Bq kg) and the Vascular plant (1.37E-02 Bq kg), respectively. The total dose rate value was ranged between 1.94E-06 μGy h (Phytoplankton) to 4.70E-03 μGy h (Polychaete worm). The total dose rates of Cs to the selected organisms were all <0.001 μGy h, and there is no significant risk to marine biota in the study area.
尽管铯放射性核素在海鲜食物链中的环境影响有限，但地中海海域的铯放射性核素丰度研究却很少。为此，使用高分辨率 HPGe 伽马能谱系统测定了沉积物和海水中的 Cs 活度浓度。沉积物和水中的平均活度浓度分别为 14.16 Bq kg 和 1.74 mBq L。将结果作为 ERICA Tool 模型软件的输入数据，评估海洋生物的积累和剂量。在鸟类（9.24E-01 Bq kg）和维管束植物（1.37E-02 Bq kg）中观察到最高和最低的积累活度浓度值。总剂量率值在 1.94E-06 μGy h（浮游植物）到 4.70E-03 μGy h（多毛环节动物）之间变化。Cs 对所选生物体的总剂量率均<0.001 μGy h，研究区域的海洋生物群没有明显的风险。
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