千岛湖水体中邻苯二甲酸酯(PAEs)的分布特征及健康风险评价  

Distribution Characteristics and Ecological and Health Risk Assessment of Phthalic Acid Esters in Surface Water of Qiandao Lake,China

作　　者：弥启欣 国晓春[1] 卢少勇[1] 邓义祥[2] 卢洪斌 李响[1] 刘晓贺 陈金明 MI Qi-xin;GUO Xiao-chun;LU Shao-yong;DENG Yi-xiang;LU Hong-bin;LI Xiang;LIU Xiao-he;CHEN Jin-ming(National Engineering Laboratory for Lake Pollution Control and Ecological Restoration,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;Institute of Water Ecology and Environment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China)

机构地区：[1]中国环境科学研究院湖泊水污染治理与生态修复国家工程实验室,北京100012 [2]中国环境科学研究院水生态环境研究所,北京100012

出　　处：《环境科学》2022年第4期1966-1975,共10页Environmental Science

基　　金：国家科技基础性工作专项(2015FY110900)。

摘　　要：为揭示千岛湖水体中邻苯二甲酸酯(PAEs)的污染情况和风险水平,对枯水期和丰水期千岛湖湖区及入湖河流共计17个采样点水体中6种PAEs进行了检测,分析了PAEs的污染水平,并开展健康风险评价.结果表明,枯水期和丰水期6种PAEs均有检出,ρ(ΣPAEs)分别为0.98~5.33μg·L^(-1)(平均值为2.63μg·L^(-1))和3.22~17.88μg·L^(-1)(平均值为7.99μg·L^(-1));从检出率和检出量来看,DiBP、DBP和DEHP为千岛湖主要的PAEs组分,丰水期10个点位的DBP测定值和平均值高于我国《地表水环境质量标准》(GB 3838-2002)中规定的(3μg·L^(-1));主成分分析显示,千岛湖水体中PAEs来源主要为个人护理品、塑料制品和生活垃圾等;千岛湖PAEs的污染水平与国内外水体相比较高;健康风险评价结果显示,千岛湖PAEs的非致癌风险指数(HI)均小于1,表明不会对人体产生非致癌风险;但个别点位致癌风险值(R)对儿童超过了10^(-6),表明可能会对儿童产生致癌风险,应引起重视.In order to reveal the pollution and risk level of phthalic acid esters(PAEs)in Qiandao Lake,six types of PAEs in 17 sampling points(in Qiandao Lake and its inflowing rivers)in dry and wet seasons were detected.The results showed that six types of PAEs were detected in both dry and wet seasons,with the concentrations of 0.98-5.33μg·L^(-1)(average concentration 2.63μg·L^(-1))in the dry season and 3.22-17.88μg·L^(-1)(average concentration 7.99μg·L^(-1))in the wet season.In terms of the detection rate and concentration of each monomer PAEs,DiBP,DBP,and DEHP were the main PAEs components in the water body.The measured value of DBP at 10 sampling points and its average mass concentration in the wet season were higher than the national standard(3μg·L^(-1)).Principal component analysis indicated that the main sources of PAEs were personal care products,plastics,and domestic waste.The pollution level of PAEs in Qiandao Lake was at a high level at home and abroad.The health risk assessment results in Qiandao Lake showed that the non-carcinogenic risk index of PAEs in the study area was less than 1,which would not produce non-carcinogenic risks to the human body.The carcinogenic risk index of children exceeded 10^(-6) at some points,indicating that it may pose carcinogenic risks to children,to which more attention should be paid.

关 键 词：千岛湖 水体 邻苯二甲酸酯(PAEs) 污染水平 健康风险 

分 类 号：X524[环境科学与工程—环境工程]