辽宁省饮用水PFASs靶向与非靶向分析及其风险评估  

Target and non-target analysis of PFASs and related risk assessment in drinking water of Liaoning Province

作　　者：王雪[1] 鲍佳[1] 刘洋[1] 邵立新 WANG Xue;BAO Jia;LIU Yang;SHAO Lixin(School of Environmental and Chemical Engineering,Shenyang University of Technology,Shenyang,110870,China)

机构地区：[1]沈阳工业大学环境与化学工程学院,沈阳110870

出　　处：《环境化学》2024年第11期3733-3745,共13页Environmental Chemistry

基　　金：国家自然科学基金(21976124);辽宁省“兴辽英才计划”项目(XLYC2007195);辽宁省应用基础研究计划项目(2023JH2/101300059)资助.

摘　　要：为探究辽宁省饮用水中全氟和多氟烷基化合物(PFASs)污染特征,本研究采用基于超高效液相色谱与三重四极杆串联质谱联用的靶向方法、以及基于高效液相色谱与四极杆飞行时间串联质谱的非靶向方法,对采集自辽宁省的自来水和瓶装水样品中传统和新型PFASs污染水平进行分析,并开展风险评估.结果表明,基于靶向分析,自来水中传统总浓度(ΣPFASs)浓度范围为30.1—86.8 ng·L^(−1),瓶装水中PFASs浓度略低于自来水,传统ΣPFASs浓度范围为41.3—79.3 ng·L^(−1),全氟丁酸(PFBA)、全氟戊酸(PFPeA)、全氟己酸(PFHxA)和全氟丁烷磺酸(PFBS)等短链PFASs为自来水和瓶装水中最主要的传统PFASs污染物;通过非靶向分析共检出11类52种新型PFASs,其中自来水中检出11类47种新型PFASs,其ΣPFASs相对浓度范围为0.838—20.5 ng·L^(−1);瓶装水中检出11类49种新型PFASs,其ΣPFASs相对浓度范围为0.838—20.5 ng·L^(−1),与传统PFASs不同,长链PFASs为主要的新型PFASs污染物.辽宁省自来水和瓶装水PFASs浓度和比例特征不同,自来水含有更严重的全氟羧酸类(PFCAs)污染,而瓶装水含有更严重的全氟磺酸类(PFSAs)污染,这可能与自来水和瓶装水的处理工艺不同有关.辽宁省自来水中PFASs的生态风险评价表明,辽宁省自来水中PFASs无生态环境风险;全氟辛酸(PFOA)和全氟辛烷磺酸(PFOS)浓度未超过我国最新生活饮用水卫生标准限值,且两者健康风险值(HR)均小于0.1,表明辽宁省自来水中PFOA和PFOS无人体健康风险.In order to explore the contamination characteristics of per-and polyfluoroalkyl substances(PFASs)in drinking water of Liaoning Province,the target analysis based upon UPLC coupled with triple quadrupole tandem mass spectroscopy and non-target analysis based upon HPLC tandem quadrupole time-of-flight mass spectrometry were used in this study.The contamination levels of legacy and novel PFASs in tap water and bottled water samples collected from Liaoning Province were analyzed and their related risks were also assessed.The results showed that,based upon the target analysis,the concentration range of legacyΣPFASs in tap water was 30.1—86.8 ng·L^(-1).The concentrations of PFASs in bottled water were slightly lower than those in tap water.Moreover,the concentration range of legacyΣPFASs was 41.3—79.3 ng·L^(-1),and PFBA,PFPeA,PFHxA,and PFBS were the main legacy PFASs in tap water and bottled water.Based upon the non-target analysis,52 novel PFASs of 11 categories were determined.47 novel PFASs of 11 categories were detected in tap water,and relative concentration range ofΣPFASs was 0.838—20.5 ng·L^(-1).Furthermore,49 novel PFASs of 11 categories were detected in bottled water,and relative concentration range of novelΣPFASs was 0.838—20.5 ng·L^(-1).Different from legacy PFASs,long-chain PFASs were the main novel PFAS contaminants.The concentration and proportion characteristics of PFASs in tap water and bottled water in Liaoning province were different,tap water contained higher contamination levels of PFCAs than bottled water,which may be related to the dissimilar treatment processes of tap water and bottled water.The ecological risk evaluation of PFASs in tap water of Liaoning Province showed that there was no ecological environmental risk for PFASs in tap water of Liaoning Province.The concentrations of PFOA and PFOS did not exceed the limit of the latest drinking water sanitation standards in China,and the health risk value(HR)of both tap water and bottled water were less than 0.1,indicating that th

关 键 词：全氟和多氟烷基化合物 自来水 瓶装水 靶向分析 非靶向分析 风险评估 

分 类 号：X-1[环境科学与工程] O6[理学—化学]