漳州核电厂周边食品总α和总β放射性本底调查  

Background radioactivity levels of grossαand grossβin foods around Zhangzhou nuclear power plant,China

作　　者：刘佳[1] 刘萌萌 郑琪珊 吕吉荣 卿云花 张燕[1] 林丹[1] 黄丽华[1] LIU Jia;LIU Mengmeng;ZHENG Qishan;LV Jirong;QING Yunhua;ZHANG Yan;LIN Dan;HUANG Lihua(Fujian Center for Prevention and Control of Occupational Diseases and Chemical Poisoning,Fuzhou 350001 China;The School of Public Health,Fujian Medical University,Fuzhou 350025 China)

机构地区：[1]福建省职业病与化学中毒预防控制中心,福建福州350001 [2]福建医科大学公共卫生学院,福建福州350025

出　　处：《中国辐射卫生》2024年第2期176-182,共7页Chinese Journal of Radiological Health

基　　金：福建省卫生健康科技计划项目资助(2020QA028)。

摘　　要：目的掌握漳州核电厂运行前周边地区食品总α和总β放射性水平。方法采集漳州核电厂周边日常食用的5类33种49份样品,对样品前处理、干燥和灰化后,采用低本底α、β测量仪测定其总α、总β放射性,用原子吸收法测量钾和查阅营养膳食系统不同食品中的钾含量来分别计算减钾总β放射性水平。结果漳州核电厂周边食品中蔬菜水果类、粮食类、家禽家畜类、水产品类、茶叶类放射性总α放射性分别为<MDL~7.97、<MDL~6.82、<MDL、<MDL~20.76、11.90~23.08 Bq/kg;总β放射性分别为34.56~122.81、13.05~188.96、56.00~108.34、17.86~169.01、123.74~171.63 Bq/kg;减钾总β放射性水平为ND~14.27、ND~27.86、ND~48.72、ND~45.85、6.69~13.79 Bq/kg。结论漳州核电厂运行前周边地区食品总放射性与我国其它地区基本处于同一水平。Objective To investigate the radioactivity levels of grossαand grossβin foods around Zhangzhou nuclear power plant,China before operation.Methods Forty-nine samples from 33 kinds of foods in 5 categories of daily food around Zhangzhou nuclear power plant were collected,pretreated,dried,and ashed.The radioactivity levels of grossαand grossβwere measured by the low-backgroundαandβmeasuring instrument.The atomic absorption technique was employed to measure the level of potassium(K),and the radioactivity level of grossβ(subtracting 40K)was calculated with K concentrations in different foods consulted from the nutritional dietary system.Results The radioactivity levels of grossαin vegetables and fruits,grain,poultry and livestock,aquatic products,and tea around Zhangzhou nuclear power plant were<minimum detectable level(MDL)-7.97,<MDL-6.82,<MDL,<MDL-20.76,and 11.90-23.08 Bq/kg,respectively;the radioactivity levels of grossβwere 34.56-122.81,13.05-188.96,56.00-108.34,17.86-169.01,and 123.74-171.63 Bq/kg,respectively;the radioactivity levels of grossβ(subtracting 40K)were not detected(ND)-14.27,ND-27.86,ND-48.72,ND-45.85,and 6.69-13.79 Bq/kg,respectively.Conclusion The radioactivity of grossαand grossβin foods around Zhangzhou nuclear power plant before operation is basically at the same level as that in other areas of China.

关 键 词：核电厂 食品 放射性水平 40K 

分 类 号：X591[环境科学与工程—环境工程]