东江流域水环境中对羟基苯甲酸酯及其代谢物的赋存特征及生态风险评估  

ENVIRONMENTAL OCCURRENCE AND ECOLOGICAL RISK ASSESSMENT OF PARABENS AND METABOLITES IN THE DONGJIANG RIVER

作　　者：张雷 李雪梅 魏源[2] 冯承莲[2] 苏海磊[2] 刘玉贤 赵亚男 李飞龙 郭芬 张远 薛靖川 ZHANG Lei;LI Xuemei;WEI Yuan;FENG Chenglian;SU Hailei;LIU Yuxian;ZHAO Yanan;LI Feilong;GUO Fen;ZHANG Yuan;XUE Jingchuan(Hebei Cangzhou Hydrological Investigation and Research Center,Cangzhou 061000,China;State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;Key Laboratory of Ministry of Education for Water Quality Security and Protection in Pearl River Delta,School of Environmental Science and Engineering,Guangzhou University,Guangzhou 510006,China;Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds,Institute of Environmental and Ecological Engineering,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]河北省沧州水文勘测研究中心,河北沧州061000 [2]中国环境科学研究院环境基准与风险评估国家重点实验室,北京100012 [3]广州大学环境科学与工程学院,广州510006 [4]广东工业大学生态环境与资源学院,广州510006

出　　处：《环境工程》2024年第4期91-99,共9页Environmental Engineering

基　　金：广东省环保专项资金项目(粤财资环[2022]18号);广东省环保专项资金项目(粤财资环[2023]12号);国家自然科学基金青年项目(42007374);广州市科技计划项目基础与应用基础研究项目(博士青年科技人员类)专项(专题)(202102020287)。

摘　　要：对羟基苯甲酸酯(Parabens)作为防腐剂被广泛用于食品、化妆品、药品和工业产品的生产和使用中。然而,作为一种新兴的内分泌干扰物,Parabens在水环境中长期积累会对生态环境和人类健康造成威胁。分析了东江水体与底泥中Parabens及其常见代谢物的赋存特征,并评估了其可能造成的生态风险。结果表明:东江水体中Parabens含量为1.17~17.01 ng/L,底泥中Parabens含量为19.0~765.959 ng/g。其中,西枝江(XZJ)段水体及底泥中Parabens的平均含量均较高,分别为3.62 ng/L、155.99 ng/g。对羟基苯甲酸甲酯(Methyl parabens,MeP)和其主要代谢产物对羟基苯甲酸(4-hydroxybenzoic acid,4-HB)是东江流域水环境中Parabens的主要存在单体。Parabens各种单体水平在不同地区也表现出一定的差异性,可能与食品、药品和化妆品的不同消费习惯有关。风险评估表明,东江水体中Parabens的生态风险水平较低,但是长期暴露可能会对生态系统造成较大危害,需要引起关注和重视。研究结果为此类物质的风险评估和环境管理提供了科学支撑。Parabens are widely used as preservatives in the production of food,cosmetics,pharmaceuticals,and industrial products.However,as a group of emerging endocrine disruptor,parabens can be bioaccumulated in aquatic organisms,thus posing threat to the ecosystem and human health.In this study,we investigated the occurrence and distribution of parabens in the surface water and sediments of the Dongjiang River,and assessed the potential ecological risk it may pose.The results showed that the concentrations of total parabens in the surface water ranged from 1.17 ng/L to 17.07 ng/L.The concentrations of parabens in sediments ranged from 19.0 ng/g to 765.959 ng/g.Meanwhile,the average content of parabens in the water column and sediment of Xizhijiang(XZJ)was higher,3.62 ng/L and 155.99 ng/g,respectively.Among the parabens and metabolites measured,MeP and 4-HB were the respective major parent compound and metabolite.The levels of different types of parent parabens also showed variability in different regions,which may be related to different consumption habits of food,drugs,and cosmetics.The risk assessment showed that the ecological risk of parabens in the Dongjiang River was low,but long-term exposure may cause greater harmful effects on the ecosystem.The results of the study provide scientific support for the risk assessment and environmental management of parabens.

关 键 词：东江 对羟基苯甲酸酯 风险评估 环境管理 沉积物 

分 类 号：X52[环境科学与工程—环境工程] X826