Emerging and legacy per-and polyfluoroalkyl substances in the rivers of a typical industrialized province of China: Spatiotemporal variations, mass discharges and ecological risks

doi:10.3389/fenvs.2022.986719

	Emerging and legacy per-and polyfluoroalkyl substances in the rivers of a typical industrialized province of China: Spatiotemporal variations, mass discharges and ecological risks
	Wang, Runmei 1,2,3; Zhang, Jian 2,3,4; Yang, Yuanyuan 5,6; Chen, Chang-Er 5,6; Zhang, Daochang 7; Tang, Jianhui2,3
发表期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
	2022-10-18
卷号	10 页码:11
关键词	PFAS Rivers seasonal variations mass discharges ecological risks
DOI	10.3389/fenvs.2022.986719
英文摘要	Per- and polyfluoroalkyl substances (PFAS) contamination has drawn considerable attention in the rivers of Shandong, China. However, their seasonal variations have not been well addressed due to the geographic scale. Here, surface waters were collected seasonally at estuaries of 13 major rivers in Shandong to investigate the spatiotemporal variations, mass discharges and ecological risks of PFAS. Two novel perfluoroalkyl ether carboxylic acids, hexafluoropropylene oxide-dimer acid (HFPO-DA) and hexafluoropropylene oxide-trimer acid (HFPO-TA), and 10 legacy PFAS were all detectable and their total concentrations (sigma PFAS) ranged largely from 23 to 25,400 ng/L. Elevated levels of all target compounds were found in the Xiaoqing River but Majia and Jiaolai Rivers were also of concern. Perfluorooctanoic acid (PFOA) was dominant in all the rivers. Its concentration in the Xiaoqing River estuary increased 6-fold from 2011 to 2014 and reached a plateau during 2014-2020. The nonsignificant seasonality of the PFAS concentrations in rivers with seasonal flows may indicate their different emission patterns (i.e., higher emission in the wet season and lower emission in the dry season). The ratio of maximum to minimum concentration (C-max/C-min) was proposed to characterize the influence of local point sources, with C-max/C-min ranging from 10 to 14,000. Xiaoqing and Yellow Rivers discharged similar to 98% of sigma PFAS flux to the sea, which was estimated to be 28.0 t in 2020. This study raises attention to the industrial emission patterns of PFAS. Further investigations with higher time resolution were needed to understand the emission patterns of PFAS in Shandong.
收录类别	SCI
语种	英语
关键词[WOS]	PERFLUOROOCTANOIC ACID PFOA ; PERFLUOROALKYL ACIDS ; XIAOQING RIVER ; BOHAI SEA ; FLUORINATED ALTERNATIVES ; SPATIAL-DISTRIBUTION ; EMISSIONS ; WATER ; CONTAMINANTS ; SURFACE
研究领域[WOS]	Environmental Sciences & Ecology
WOS记录号	WOS:000878496100001
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/37244
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Tang, Jianhui
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Shandong, Peoples R China 3.Shandong Key Lab Coastal Environm Proc, Yantai, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.South China Normal Univ, Guangdong Prov Key Lab Chem Pollut & Environm Safe, Guangzhou, Peoples R China 6.South China Normal Univ, Environm Res Inst, Sch Environm, MOE,Key Lab Theoret Chem Environm, Guangzhou, Peoples R China 7.Yantai Water Conservancy Bur, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Wang, Runmei,Zhang, Jian,Yang, Yuanyuan,et al. Emerging and legacy per-and polyfluoroalkyl substances in the rivers of a typical industrialized province of China: Spatiotemporal variations, mass discharges and ecological risks[J]. FRONTIERS IN ENVIRONMENTAL SCIENCE,2022,10:11.
APA	Wang, Runmei,Zhang, Jian,Yang, Yuanyuan,Chen, Chang-Er,Zhang, Daochang,&Tang, Jianhui.(2022).Emerging and legacy per-and polyfluoroalkyl substances in the rivers of a typical industrialized province of China: Spatiotemporal variations, mass discharges and ecological risks.FRONTIERS IN ENVIRONMENTAL SCIENCE,10,11.
MLA	Wang, Runmei,et al."Emerging and legacy per-and polyfluoroalkyl substances in the rivers of a typical industrialized province of China: Spatiotemporal variations, mass discharges and ecological risks".FRONTIERS IN ENVIRONMENTAL SCIENCE 10(2022):11.