Investigation on the radioactivity levels of seawater,sediments,and biota in Daya Bay,China

作     者：Fan Cui Honghui Huang Yi Shen Zhan Tan Pengxiang Qu Ming Dai Hongwei Yu Weixu Huang Zixiang Wu Huifeng Chen Weizhen Guo Yuxin Jia Yanbing Liu Fan Cui;Honghui Huang;Yi Shen;Zhan Tan;Pengxiang Qu;Ming Dai;Hongwei Yu;Weixu Huang;Zixiang Wu;Huifeng Chen;Weizhen Guo;Yuxin Jia;Yanbing Liu

作者机构：Guangdong Province Hospital for Occupational Disease Prevention and TreatmentGuangzhou 510310China South China Sea Fisheries Research InstituteChinese Academy of Fishery SciencesGuangzhou 510300China Department of Radiation MedicineGuangdong Provincial Key Laboratory of Tropical Disease ResearchNational Medical Products Administration Key Laboratory for Safety Evaluation of CosmeticsSchool of Public HealthSouthern Medical UniversityGuangzhou 510515China 

出 版 物：《Radiation Medicine and Protection》 (放射医学与防护（英文）)

年 卷 期：2023年第4卷第3期

页      面：165-169页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 100207[医学-影像医学与核医学] 1006[医学-中西医结合] 1002[医学-临床医学] 1001[医学-基础医学(可授医学、理学学位)] 08[工学] 1010[医学-医学技术（可授医学、理学学位）] 100106[医学-放射医学] 100602[医学-中西医结合临床] 10[医学] 

基　　金：supported by the Medical Scientific Research Foundation of Guangdong province(B2020012 C2019062 C2023023 C2023022 C2021023 and B2023283) China 

主　　题：Daya bay Radionuclide Seawater Sediment Biota 

摘      要：Objective:To investigate the radioactivity levels of seawater,sediments,and biota in the Daya Bay sea area,China,in order to establish the radioactivity baseline values,and provide basic data for the assessment of potential radiological risks that might result from the application of nuclear technology or human ***:Samples of seawater,sediments,and biota were collected from the Daya Bay sea area and *** radioactivity baseline data were then compared with information from other regions in China and around the world reported in related ***:For the seawater samples,the activity concentrations of natural radionuclide ^(40)K were 9.9-10.4 Bq/L,while ^(238)U,226Ra,^(210)Pb,^(137)Cs,and ^(110)Ag^(m) were below the minimum detectable activity(MDA).Regarding the sediment samples,the activity concentrations of ^(238)U,^(228)Ra,^(226)Ra,^(210)Pb,^(40)K,and ^(137)Cs were 38.1-40.4,49.1-53.7,32.6-38.6,59-95,590-650,and 0.48-0.88 Bq/(kg dry weight),respectively,while ^(110)Agm was below the *** the marine shrimps in the biota samples,the activity concentrations of ^(228)Ra,^(226)Ra,^(40)K,and ^(137)Cs were 1.14-2.75,0.17-0.43,63-76,and 0.038-0.045 Bq/(kg wet weight),respectively,while ^(238)U,^(210)Pb,and ^(110)Agm were all below the ***,for the marine fishes in the biota samples,the activity concentrations of ^(228)Ra,^(226)Ra,^(210)Pb,^(40)K,and ^(137)Cs were 2.1-19.7,0.32-3.78,2.2-2.8,59-70,and0.007-0.026 Bq/(kg wet weight),respectively,while ^(238)U and ^(110)Ag^(m) were all below the MDA.^(228)Ra was found to be concentrated in Osteomugil ophuyseni with 19.7 Bq/(kg wet weight).Conclusions:The radioactivity levels of seawater and marine sediments in the Daya Bay sea area are within the range of the normal background *** ophuyseni exhibited higher concentrations of ^(228)Ra than other species in this study,while the other species in the biota show no significant difference in the radioactivity levels from