丹东市销售鱼贝类天然核素放射性调查  

Natural radionuclide radioactivity of fish and shellfish in Dandong market: An investigation

作　　者：赵玲 杨清海[1] ZHAO Ling;YANG Qing-hai(Liaoning Province Key Laboratory of Water Environment Radioactivity Early Eastern Liaoning University, Dandong 118003, Warning and Monitoring Technology, China)

机构地区：[1]辽东学院辽宁水环境放射性预警监测技术重点实验室,辽宁丹东118003

出　　处：《辽东学院学报（自然科学版）》2018年第2期112-115,共4页Journal of Eastern Liaoning University:Natural Science Edition

基　　金：辽东学院第三梯队项目(2016-T3-20);辽东学院科研项目(2018年重点项目)

摘　　要：通过使用低本底多道γ能谱仪检测丹东鸭绿江中(近海)水产品的放射性。测定的核素有^(226)Ra、^(40)K及^(232)Th,检测样品包括黄蚬子、黑蚬子、小人仙、虫虫鱼、小公鱼、银鱼及鱼贝类样品的烘干样,其中贝壳类产品壳和肉需分别进行测定。最后测得^(226)Ra的比活度为14.36~26.42 Bq/kg,^(40)K的比活度为60.93~110.03 Bq/kg,^(232)Th的比活度为17.80~48.58 Bq/kg,市售水产品中放射性核素的含量均低于标准浓度,食用后对人体并无影响。The radioactivity level in the fish and shellfish organisms in the Dandong section of the Yalu River was investigated.The radioactivity of aquatic products was detected by using low background multi-channel γspectrometer.The nuclides were identified as ^226Ra,^40K and ^232Th.The samples included Mactra Chinenesis,Flowered Corbicula,Sinonovacula constricta,Hemibarbuslabeo,Stolephorus,Hemisalanx prognathus Regan and dried fish and shellfish samples,in which the shell and meat the shellfish products were measured separately.It was found that the specific activity of ^226Ra was 14.36-26.42 Bq/kg,the specific activity of K was 60.93-110.03 Bq/kg,and the specific activity of ^232Th was 17.80-48.58 Bq/kg.The radionuclide content in commercial aquatic products is lower than the standard concentration,thus they are safe as food.

关 键 词：鸭绿江 鱼贝类 放射性核素 

分 类 号：TU985.12[建筑科学—城市规划与设计]