持久性卤代有机污染物(PHCs)在食物网中的生物放大研究进展  

Research Progress on Biomagnification of Persistent Halogenated Compounds(PHCs)in Food Webs

作　　者：郑晓波 罗孝俊[1] 麦碧娴[1] ZHENG Xiao-bo;LUO Xiao-jun;MAI Bi-xian(State Key Laboratory of Organic Geochemistry,Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China;College of Resources and Environment,South China Agricultural University,Guangzhou 510642,China)

机构地区：[1]中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广州510640 [2]华南农业大学资源环境学院,广州510642

出　　处：《矿物岩石地球化学通报》2020年第1期30-43,I0003,共15页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家自然科学基金重点项目(41931290)。

摘　　要：持久性卤代有机污染物(PHCs)具有持久性、生物富集性和毒性,是对生态环境和人类健康有严重威胁的污染物。PHCs浓度会沿食物链在生物中逐营养级放大,对高等生物及人体产生毒性。本文综述了PHCs在食物网中生物放大的特征,总结了国内外对食物网中PHCs的营养级放大因子研究进展,探讨了生态和化学因素对PHCs沿食物链传递过程的影响。目前的研究多集中于水生生态系统中传统PHCs的生物放大,对PHCs的生物差异性代谢缺乏足够的了解,难以说明不同生态系统中复杂的气候、地理、生物种群特征对PHCs生物放大的影响,也给准确评估PHCs的生态风险带来了困难。PHCs的生物放大研究需要引入更多先进地球化学手段和准确构建不同生态系统的野生食物网,阐明PHCs的生物放大机制和影响因素。Persistent halogenated compounds(PHCs)are organic chemicals with properties of persistence,bioaccumulation and toxicity,and pose significant adverse effects on natural environments and health of human.PHCs can be biomagnified in the organism of high trophic level and in human.In the present study,we reviewed the biomagnification of PHCs in the food web,summarized the research progress on the biomagnification of PHCs,and discussed the influences of ecological factors and properties of PHCs on the transfer of PHCs via the food chain.Current studies focused on the biomagnification of traditional PHCs in aquatic environments and provided limited knowledge on the species-specific metabolism of PHCs.The complex features of climate,geography,and biota in different ecosystems also bring uncertainty in the estimation of the biomagnification of PHCs.The more precise geochemistry method and more reliable food web information are much needed in future studies in order to provide the insight understanding of mechanism and influence factors on the biomagnification of PHCs.

关 键 词：持久性卤代有机污染物 食物网 营养级放大因子 生物多样性 

分 类 号：X592[环境科学与工程—环境工程]