Occurrence of HTO and NE-OBT in soil in the vicinity of the Qinshan Nuclear Power Plant

作     者：lin du qin zhang zheng-hai xia yu-hua ma ling wang lai-lai qin ke deng sheng-wei wu guang-hua wang wei liu 无

作者机构：Shanghai Institute of Applied Physics Chinese Academy of Science Shanghai 201800 China University of Chinese Academy of Science Beijing 100049China CNNC Nuclear Power Operations Management Co. LtdHaiyan 314300 China Shanghai Tech University Shanghai 201210 China 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2016年第27卷第4期

页      面：1-6页

核心收录：

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 

基　　金：Acknowledgments The authors would like to thanks the colleagues from CNNC Nuclear Power Operations Management Co. Ltd for the help sampling soils 

主　　题：土壤水 秦山核电站 空间分布 土层深度 秦山核电厂 HTO 水浓度 氚浓度 

摘      要：In this study, concentrations of tritiated water(HTO) and non-exchangeable organically bound tritium(NE-OBT) and the NE-OBT/HTO ratios were determined in soil around Qinshan Nuclear Power Plant(NPP), Zhejiang, China, and their vertical profile and spatial distribution were investigated. Results showed variations in both the HTO and NE-OBT concentrations in the vertical profile. The HTO concentrations generally decreased firstly and then increased with the increasing depths, but the trend was not significant. The NE-OBT concentrations in the surface soils(0–5 cm) were considerably lower than those in the deep soils(5–25 cm) at all the sites. The NE-OBT/HTO ratios also show a variable vertical profile, initially increasing and then decreasing with increasing soil *** the HTO and NE-OBT concentrations decreased with the increasing distance to the HWRs in deep soil layers(5–25 cm), revealing that the released tritium from the NPP affected the spatial distribution.