城市地质2025，Vol.20Issue(3)：328-335,8.DOI:10.3969/j.issn.2097-3764.2025.03.006
北京市平原区地下水中卤代烃时空分布特征研究
Spatiotemporal distribution of halogenated hydrocarbons in Beijing plain groundwater
摘要
Abstract
Based on the groundwater quality data in Beijing plain(2011-2024),statistical analysis is conducted to assess the detection status and spatiotemporal distribution characteristics of three chlorinated hydrocarbons:trichloromethane(TCM),trichloroethylene(TCE)and tetrachloroethylene(PCE).Over this period,detection rates fluctuated within the ranges of 7.3%-14.4%for TCM,5.5%-10.3%for TCE,and 5.0%-10.6%for PCE in most years.Spatially,three chlorinated hydrocarbons are mainly distributed in the middle and upper parts of the Chaobai River alluvial fan and the Yongding River alluvial fan,and the single index evaluation of water quality is mainly class I.Vertically,detection rate gradually decreases with increasing depths.However,concentration profiles at individual monitoring points show complex variations with depths.The observed spatiotemporal distribution patterns result from the interplay of multiple factors,including pollution sources,hydrogeological conditions in the plain area,and the physicochemical properties of the halogenated hydrocarbons themselves.关键词
地下水/卤代烃/时空分布/北京平原Key words
groundwater/halogenated hydrocarbons/spatiotemporal distribution/Beijing plain引用本文复制引用
王奂玲,杨庆,董殿伟,赵微,江岳,陆海燕,肖寒..北京市平原区地下水中卤代烃时空分布特征研究[J].城市地质,2025,20(3):328-335,8.基金项目
北京市地下水监测网运行项目(11000022T000000440194)资助 （11000022T000000440194）
