Perfluorocarboxylic acids(PFCAs)and perfluoroalkyl sulfonates(PFASs)in surface and tap water around Lake Taihu in China  

作　　者：Yong QIU He JING Hanchang SHI 

机构地区：[1]State Key Joint Laboratory of Environmental Simulation and Pollution Control,Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China

出　　处：《Frontiers of Environmental Science & Engineering》2010年第3期301-310,共10页环境科学与工程前沿（英文）

基　　金：the National Science and Technology Pillar Program of China(Grant No.2006BAC19B06);the Major Projects on Control and Rectification of Water Body Pollution(2009ZX07313-003).

摘　　要：Perfluorinated compounds(PFCs)are ubiquitously distributed in the environment mainly as perfluorocarboxylic acids(PFCAs)and perfluoroalkyl sulfonates(PFASs).In this paper,six PFCAs and two PFASs were quantified in surface and tap water samples from 12 sites around Lake Taihu near Shanghai City in East China.Predominant PFCs were perfluorooctanoic acid(PFOA)and perfluorooctane sulfonate(PFOS),of which the concentration ranges were 6.8–206 and 1.2–45 ng·L^(–1),the geometric means were 35.3 and 9.4 ng·L^(–1),and the median(quartile range)values were 31.4(34.4)and 10.4(10.7)ng·L^(–1),respectively.Other PFCs were also detected but in much lower concentrations than PFOA.The sources of the PFCs were expected to be direct industrial discharges in the Lake Taihu area,and this area was also a possible source of PFCs contaminations in Shanghai district in the downstream.PFCs distributions were found different in the upstream,downstream and north part of Lake Taihu.Occurrences of PFCs in the tap water in Lake Taihu area indicated their exposure to the local people.A brief estimation of the environmental risks by PFCs implied no acute or immediate risks from PFCs to local human health,but chronic risks from PFOA in the tap water should be considered in the downstream regions.

关 键 词：surface and tap water perfluorocarboxylic acids(PFCAs) perfluoroalkyl sulfonates(PFASs) Lake Taihu area ultra performance liquid chromatography with tandem mass spectrometry(UPLC-MS) 

分 类 号：O62[理学—有机化学]