2017年夏季黑海表层137Cs的分布

IF 0.7 Q4 OCEANOGRAPHY
I. Dovhyi, D. Kremenchutskii, N. Bezhin, O. Kozlovskaia, V. V. Milyutin, E. Kozlitin
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引用次数: 8

摘要

目的。本研究的目的是调查黑海沿岸和深水部分137cs的分布。为了实现这一目标,必须解决以下科学问题:选择海水样品中137cs的浓缩方法,海水取样和137cs浓缩,测量所得样品,讨论所得结果并与现有科学文献数据进行比较。材料和结果。研究了黑海近岸和深水区137cs活度的分布。利用2017年6月14日至7月7日“沃达扬尼茨基教授”号潜艇第95次巡航期间获得的黑海表层137cs体积活度场的时空变化原位数据。海洋活动层的放射性核素垂直分布资料是在若干台站获得的。在11个海水站采集和处理了22个海水样本。采用FCC牌亚铁氰化物吸附剂从海水中分离137cs;它是专门为从工艺处理溶液和放射性废水中选择性回收和分离134 Cs和137 Cs放射性核素而开发的。结论。结果表明,137cs的体积活度在5.7 ~ 8.8 Bq/m 3范围内变化,平均为6.9±0.2 Bq/m 3。在活动层边界内,137cs的垂直分布是均匀的。活性分析,黑海,活性层,时空变异性,吸附,选择性吸附剂。致谢:本研究是在国家任务No. 0827-2020-0003“海洋学过程”的框架内进行的,在科学项目No. 19-33-60007的框架内,在RFBR的财政支持下研究了吸附的方法学方面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distribution of 137Cs in the Surface Layer of the Black Sea in Summer, 2017
Purpose. The purpose of the study is to investigate distribution of 137 Cs in the coastal and deep-water part of the Black Sea. To achieve this goal, the following scientific problems has to be solved: choosing a method for concentrating 137 Cs from seawater samples, seawater sampling and 137 Cs concentrating, measurements of the obtained samples, discussion of the obtained results and their comparison with the available scientific literature data. Materials and Results. Distribution of 137 Cs activity in the coastal and deep-water part of the Black Sea was studied. The in situ data on spatial-temporal variability of the 137 Cs volumetric activity field in the Black Sea surface layer obtained in course of the 95 th cruise of the R/V "Professor Vodyanitsky" in June, 14–July 7, 2017 were used. The data on the radionuclide vertical distribution in the sea active layer were obtained at a number of stations. 22 seawater samples were taken and processed at 11 stations. To separate 137 Cs from seawater, a ferrocyanide sorbent of the FCC brand was first applied; it was intentionally developed for selective recovery and separation of 134 Cs and 137 Cs radionuclides from the technological processing solutions and radioactive waste water. Conclusions. According to the results, the volumetric activity of 137 Cs varied spatially in the range 5.7–8.8 Bq/m 3 and amounted on average 6.9 ± 0.2 Bq/m 3 . Within the active layer boundaries, vertical distribution of 137 Cs was found to be uniform. activity analysis, Black Sea, active layer, spatial-temporal variability, sorption, selective sorbent. Acknowledgments: the study was carried out within the framework of the state task No. 0827-2020-0003 “Oceanological processes”, methodological aspects of sorption were studied at the RFBR financial support within the framework of scientific project No. 19-33-60007.
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来源期刊
Physical Oceanography
Physical Oceanography OCEANOGRAPHY-
CiteScore
1.80
自引率
25.00%
发文量
8
审稿时长
24 weeks
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