西太平洋巴特柔鱼放射性核素活度浓度测量与辐射剂量评估  

Measurement of radionuclide activities of Ommastrephes bartramii in the western Pacific Ocean and radiation dose assessment

作　　者：李佳[1,3] 余雯 何建华 曾志[5] LI Jia;YU Wen;HE Jianhua;ZENG Zhi(College of Physics, Sichuan University, Chengdu 610065, China;School of National Safety and Emergency Management, Beijing Normal University, Zhuhai 519087, China;Third Institute of Oceanography, MNR, Xiamen 361005, China;West China Hospital, Sichuan University, West China Hospital, Sichuan University, Chengdu 610041, China;Department of Engineering Physics, Tsinghua University, Beijing 100091, China)

机构地区：[1]四川大学物理学院,四川成都610065 [2]北京师范大学国家安全与应急管理学院,广东珠海519087 [3]自然资源部第三海洋研究所,海洋放射性技术与环境安全评估实验室,福建厦门361005 [4]四川大学华西医院,四川成都610041 [5]清华大学工程物理系,北京100091

出　　处：《应用海洋学学报》2022年第1期94-99,共6页Journal of Applied Oceanography

基　　金：国家自然科学基金青年基金资助项目(12105378)。

摘　　要：为进一步认识日本福岛核事故对海洋生物体内放射性水平及公众辐射剂量的影响,本研究对日本福岛核事故后采集自西北太平洋的巴特柔鱼(Ommastrephes bartramii)器官组织中总α、总β放射性活度进行了测量分析,结果表明:巴特柔鱼各内脏器官中总α和总β的活度浓度明显高于其他软组织,其中以肝脏最为明显;巴特柔鱼各内脏器官的总β的活度浓度明显高于总α活度浓度。除此之外,利用国际上公开发布的海洋环境核素活度浓度水平,对日本近岸以及西太平洋公海的巴特柔鱼进行了3个时间段的辐射剂量评估。评估结果表明,根据公开数据,日本近岸受影响严重且时限较长,西太平洋公海区域受影响程度不大,时限亦不长。For further understanding the impacts of the accident of Japan's Fukushima-Daii-Chi Nuclear Power Plant on the radioactivity levels of marine organisms and the public radiation dose.The radioactivities of gross alpha and gross beta from the organs and tissues of Ommastrephes bartramii collected from the northwest Pacific Ocean after the accident were measured and analyzed.The results showed that the activity concentrations of gross alpha and gross beta in the organs,particularly the liver,of the O.bartramii were significantly higher than those of other soft tissues.The activity concentration of gross beta in the O.bartramii was significantly higher than that of gross alpha activity.In addition,the radiation dose of the O.bartramii was evaluated during three time periods in the waters adjacent to Japan and in the western Pacific Ocean by using the nuclide activity concentration levels in the marine environment published internationally.The results show that according to the open data,the impacts were serious and would last for a long time in the adjacent waters of Japan while it was limited and would last for a shorter time in the far western Pacific Ocean.

关 键 词：海洋化学 巴特柔鱼 放射性活度浓度 辐射剂量评估 

分 类 号：P734[天文地球—海洋化学]