Per- and polyfluoroalkyl substances in Chinese and German river water - Point source- and country-specific fingerprints including unknown precursors

doi:10.1016/j.envpol.2020.115567

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Per- and polyfluoroalkyl substances in Chinese and German river water - Point source- and country-specific fingerprints including unknown precursors
	Joerss, Hanna 2,3; Schramm, Thekla-Regine 2; Sun, Linting 4,5; Guo, Chao 4,5; Tang, Jianhui 1,4; Ebinghaus, Ralf 2
刊名	ENVIRONMENTAL POLLUTION
	2020-12-01
卷号	267 页码:9
关键词	Emerging contaminants PFASs Surface water LC-MS/MS Isomer profiling Total oxidizable precursor assay
ISSN号	0269-7491
DOI	10.1016/j.envpol.2020.115567
通讯作者	Tang, Jianhui(jhtang@yic.ac.cn)
英文摘要	This study aimed at comparing source-specific fingerprints of per- and polyfluoroalkyl substances (PFASs) in river water from China and Germany, selected as countries with different histories of PFAS production. Samples were collected from up- and downstream of seven suspected point sources in autumn 2018. Amongst the 29 analyzed legacy and emerging PFASs, 24 were detected, with a sum ranging from 2.7 ng/L (Alz River) to 420,000 ng/L (Xiaoqing River). While mass flow estimates for the Xiaoqing River and Yangtze River (mean: 20 and 43 t/y, respectively) indicated ongoing high emissions of the legacy compound PFOA in China, its ether-based replacements HFPO-DA and DONA showed the highest contribution downstream of a German fluoropolymer manufacturing site (50% and 40% of Sigma PFASs measured, respectively). In river water impacted by manufacturing sites for pharmaceutical and pesticide intermediates, the short-chain compound PFBS was the most prevalent substance in both countries. The German Ruhr River, receiving discharges from the electroplating industry, was characterized by the PFOS replacement 6:2 FTSA. Isomer profiling revealed a higher proportion of branched isomers in the Chinese Xi River and Xiaoqing River than in other rivers. This points to different synthesis routes and underlines the importance of differentiating between linear and branched isomers in risks assessments. Upon oxidative conversion in the total oxidizable precursor (TOP) assay, the increase of the short-chain compound PFBA was higher in German samples than in Chinese samples (88 +/- 30% versus 12 +/- 14%), suggesting the presence of a higher proportion of unknown precursors to PFBA in the German environment. Amongst the ether-based replacements, DONA and 6:2 Cl-PFESA were fully or partially degraded to non-targeted oxidation products, whereas HFPO- DA showed no degradation. This indicates that the inclusion of ether-based PFASs and their oxidation products in the TOP assay can help in capturing a larger amount of the unknown PFAS fraction. (c) 2020 Elsevier Ltd. All rights reserved.
资助项目	SOA (State Oceanic Administration of China)-BMBF (German Federal Ministry of Education and Research) joint project MEGAPOL[03F0786C] ; National Natural Science Foundation of China[U1806207] ; Key Deployment Project of the Centre for Ocean Mega-Science, Chinese Academy of Sciences[COMS2019J08]
WOS关键词	PERFLUOROALKYL ACIDS PFAAS ; FLUORINATED ALTERNATIVES ; ISOMER PROFILES ; PFOS ; CHALLENGES ; EMISSIONS ; SURFACE ; ASSAY ; FATE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000593967000023
资助机构	SOA (State Oceanic Administration of China)-BMBF (German Federal Ministry of Education and Research) joint project MEGAPOL ; National Natural Science Foundation of China ; Key Deployment Project of the Centre for Ocean Mega-Science, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/27537]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Tang, Jianhui
作者单位	1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 2.Helmholtz Zentrum Geesthacht, Inst Coastal Res, D-21502 Geesthacht, Germany 3.Univ Hamburg, Inst Inorgan & Appl Chem, D-20146 Hamburg, Germany 4.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Shandong Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Joerss, Hanna,Schramm, Thekla-Regine,Sun, Linting,et al. Per- and polyfluoroalkyl substances in Chinese and German river water - Point source- and country-specific fingerprints including unknown precursors[J]. ENVIRONMENTAL POLLUTION,2020,267:9.
APA	Joerss, Hanna,Schramm, Thekla-Regine,Sun, Linting,Guo, Chao,Tang, Jianhui,&Ebinghaus, Ralf.(2020).Per- and polyfluoroalkyl substances in Chinese and German river water - Point source- and country-specific fingerprints including unknown precursors.ENVIRONMENTAL POLLUTION,267,9.
MLA	Joerss, Hanna,et al."Per- and polyfluoroalkyl substances in Chinese and German river water - Point source- and country-specific fingerprints including unknown precursors".ENVIRONMENTAL POLLUTION 267(2020):9.