宁德核电站周边地区茶叶中^(90)Sr放射性水平调查  

The investigation on the radioactivity level of ^(90)Sr in tea leaves in the vicinity of Ningde nuclear power plant

作　　者：郑琪珊 张燕[1] 郑森兴[1] 黄丽华[1] 刘佳[1] 冯丫娟[1] 王德男 ZHENG Qishan;ZHANG Yan;ZHENG Senxing;HUANG Lihua;LIU Jia;FENG Yajuan;WANG Denan(Fujian Center for Prevention and Control of Occupational Diseases and Chemical Poisoning,Fuzhou 350025 China;Fuding Center for Diseases Prevention and Control,Fuding 355200 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350025 [2]宁德福鼎市疾病预防控制中心,福建福鼎355200

出　　处：《中国辐射卫生》2021年第4期428-432,共5页Chinese Journal of Radiological Health

基　　金：福建省卫生计生委青年科研课题(2014/2/12)。

摘　　要：目的了解宁德核电站30 km范围内和30 km范围外地区茶叶中^(90)Sr放射性水平。方法于2013—2018年期间采集宁德核电站30 km范围内和30 km范围外地区茶叶,参照HJ 815—2016《水和生物样品灰中锶-90的放射化学分析方法》中二-(2-乙基已基)磷酸脂萃取色层法进行样品中^(90)Sr-90Y的分离分析。结果2013—2018年,宁德核电站30 km范围内茶叶中^(90)Sr的放射性活度浓度测量范围为0.486~13.29 Bq/kg,30 km范围外茶叶中^(90)Sr的放射性活度浓度测量范围为1.021~17.19 Bq/kg。结论宁德核电站运行6年间,并未造成其周边茶叶^(90)Sr放射性水平的提高。Objective To investigation the radioactivity level of^(90)Sr in tea leaves within and outside 30 km range of Ningde nuclear power plant.Methods The tea leaves within and outside the 30 km range of Ningde Nuclear Power Plant were collected from 2013 to 2018.According to“Radiochemical analysis of strontium-90 in water and ash of biological samples”(HJ 815—2016),the separation and analysis of^(90)Sr-90Y were carried outusing the method of di(2-ethylhexyl)phosphate(HDEHP)chromatography.Results During the period of 2013-2018,the radioactivity concentrations of^(90)Sr in the tea leaves within the range of 30 km around the Ningde nuclear power plant were 0.486~13.29 Bq/kg and that of^(90)Sr in the tea leaves outside the range of 30 km around the nuclear power station were 1.021~17.19 Bq/kg.Conclusion During the six years of operation in Ningde Nuclear Power Plant,there was no increase in the radioactivity level of^(90)Sr in the tea leaves around the nuclear power plant.

关 键 词：茶叶 ^(90)Sr 放射性水平 核电站 

分 类 号：X591[环境科学与工程—环境工程]