中国司法鉴定Issue(2)：59-68,10.DOI:10.3969/j.issn.1671-2072.2025.02.008
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
摘要
Abstract
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 37.50 μg/L and 0.94 μg/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 risk-free 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Key words
dicofol/quality criteria/species sensitivity distribution(SSD)/ecological risk分类
环境科学引用本文复制引用
李清彩,陈娟,赵庆令,褚琳琳..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[J].中国司法鉴定,2025,(2):59-68,10.基金项目
山东省重点研发计划项目(2020CXGC011403,2023CXGC010904). （2020CXGC011403,2023CXGC010904）
