淡水环境中三氯杀螨醇的水质基准值推导及生态风险评估  

Derivation of Water Quality Reference Value and Ecological Risk Assessment of Dicofol in Freshwater Environment

作　　者：李清彩[1,2,3] 陈娟 赵庆令 褚琳琳[5] LI Qingcai;CHEN Juan;ZHAO Qingling;CHU Linlin(Lunan Geo-engineering Exploration Institute of Shandong Province(Shandong Provincial Bureau of Geology and Mineral Resources No.2 Geology Group),Jining 272100,China;Technology Innovation Center of Integrated Management and Ecological Restoration for Mining Subsidence Area,Ministry of Natural Resources,Jining 272100,China;College of Resources and Environment,Shandong Agricultural University,Tai’an 271018,China;School of Life Sciences,Qufu Normal University,Jining 273165,China;Shandong Weihai Eco-Environment Monitoring Center,Weihai 264200,China)

机构地区：[1]山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队),山东济宁272100 [2]自然资源部采煤沉陷区综合治理与生态修复工程技术创新中心,山东济宁272100 [3]山东农业大学资源与环境学院,山东泰安271018 [4]曲阜师范大学生命科学学院,山东济宁273165 [5]山东省威海生态环境监测中心,山东威海264200

出　　处：《中国司法鉴定》2025年第2期59-68,共10页Chinese Journal of Forensic Sciences

基　　金：山东省重点研发计划项目(2020CXGC011403,2023CXGC010904)。

摘　　要：目的三氯杀螨醇是《斯德哥尔摩公约》新增列的一类持久性有机污染物,目前国内外现有水质标准均缺乏三氯杀螨醇的标准值,开展三氯杀螨醇水质基准研究迫在眉睫。方法通过整理三氯杀螨醇对5门19科共26种淡水生物的急性毒性数据和5门9科共11种淡水生物的慢性毒性数据,采用SGompertz、Sigmoid、SRichards和SWeibull分布模型拟合了物种敏感度分布曲线,运用最优函数推导出淡水环境中三氯杀螨醇的短期水质基准值和长期水质基准值分别为37.50、0.94μg/L。结果利用商值法评估了我国11处淡水水体中三氯杀螨醇的生态风险,风险表征结果显示,全部水体均为急性无风险;72.7%的水体为慢性无风险,27.3%水体为慢性低风险。结论基于物种敏感度分布曲线推导得出的淡水环境中三氯杀螨醇的水质基准值,可作为我国三氯杀螨醇水质标准制定与生态环境损害鉴定的重要参考依据。Objective Dicofol is a new type of persistent organic pollutant added to the Stockholm Convention.Current national and international water quality standards lack established standard value for dicofol.It is urgent to carry out the water quality criteria study for dicofol.Methods In this study,acute toxicity data of dicofol to 26 species of freshwater species of 5 phyla,19 families,and chronic toxicity data of 11 species of freshwater species of 5 phyla,9 families were collected.Distribution models such as SGompertz,Sigmoid,SRichards and SWeibull were used to fit the species sensitivity distribution curve.The short-term and long-term water quality reference values of dicofol in freshwater environment were 37.50μg/L and 0.94μg/L,respectively,based on optimal functions.Results The ecological risk of dicofol in 11 freshwater bodies in China was assessed by using the quotient method.The results of risk characterization showed that all water bodies were acute and risk-free.72.7%of water bodies were chronic riskfree and 27.3%were chronic low-risk.Conclusion The water quality criteria value of dicofol in freshwater environment derived from the species sensitivity distribution curve can be used as an important reference basis for the formulation of water quality standards and ecological environment damage identification of dicofol in China.

关 键 词：三氯杀螨醇 基准值 物种敏感度分布 生态风险 

分 类 号：X82[环境科学与工程—环境工程] DF79[政治法律—诉讼法学]