Perfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors

The occurrence of perfluorinated compounds (PFCs) in different environmental media in the QingHai-Tibet Plateau has been limitedly investigated. In this study, the water, sediments, soils and agricultural product samples were collected in the Huangshui River basin, and contents of the PFCs and value...

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Autores principales:	Fengsong Zhang, Yonglu Wang, Zhuo Wei, Guixiang Zhang, Jiaqi Wang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Perfluorinated compounds Fluorescent dissolved organic matters Risk assessment Source identification Environmental pollution TD172-193.5 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/7556a981537a4ddda129b8bcc53ecd6b
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spelling	oai:doaj.org-article:7556a981537a4ddda129b8bcc53ecd6b2021-12-02T04:58:57ZPerfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors0147-651310.1016/j.ecoenv.2021.113043https://doaj.org/article/7556a981537a4ddda129b8bcc53ecd6b2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0147651321011556https://doaj.org/toc/0147-6513The occurrence of perfluorinated compounds (PFCs) in different environmental media in the QingHai-Tibet Plateau has been limitedly investigated. In this study, the water, sediments, soils and agricultural product samples were collected in the Huangshui River basin, and contents of the PFCs and values of water parameters were determined. This study investigated dominantly regulating factors of the distribution of PFCs in the water emphatically, explored the sources and assessed potential risks of the PFCs integrally. The results showed that perfluorohexanesulfonic acid, perfluorooctanesulfonic acid, perfluorobutanoic acid (PFBA) and perfluorooctanoic acid presented high maximum concentrations of 3207.42, 3015.96, 1941.89 and 826.4 ng L−1 in the water, respectively. There were 12 PFCs detected in crops, with the maximum concentration of 5206.86 ng g−1 for PFBA. The significantly positive correlation (p < 0.05) was observed between the concentrations of PFBA in crops and that in adjacent rivers, indicating that the irrigation most likely contributed to the accumulation of PFBA in the studied crops. The occurrence of the PFCs in the water during the dry season was dominantly regulated by fluorescent dissolved organic matters via the hydrophobic interaction, while it was primarily regulated by the total nitrogen and electrical conductivity via electrostatic interaction during the wet season. The PFCs in the water were mainly from the wastewater discharged from wastewater treatment plants and carpet factories, while the resuspension of the PFCs in sediments was also an important contribution especially in wet season. The PFCs in the river has posed sustained risk to the public health, especially children.Fengsong ZhangYonglu WangZhuo WeiGuixiang ZhangJiaqi WangElsevierarticlePerfluorinated compoundsFluorescent dissolved organic mattersRisk assessmentSource identificationEnvironmental pollutionTD172-193.5Environmental sciencesGE1-350ENEcotoxicology and Environmental Safety, Vol 228, Iss , Pp 113043- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Perfluorinated compounds Fluorescent dissolved organic matters Risk assessment Source identification Environmental pollution TD172-193.5 Environmental sciences GE1-350
spellingShingle	Perfluorinated compounds Fluorescent dissolved organic matters Risk assessment Source identification Environmental pollution TD172-193.5 Environmental sciences GE1-350 Fengsong Zhang Yonglu Wang Zhuo Wei Guixiang Zhang Jiaqi Wang Perfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors
description	The occurrence of perfluorinated compounds (PFCs) in different environmental media in the QingHai-Tibet Plateau has been limitedly investigated. In this study, the water, sediments, soils and agricultural product samples were collected in the Huangshui River basin, and contents of the PFCs and values of water parameters were determined. This study investigated dominantly regulating factors of the distribution of PFCs in the water emphatically, explored the sources and assessed potential risks of the PFCs integrally. The results showed that perfluorohexanesulfonic acid, perfluorooctanesulfonic acid, perfluorobutanoic acid (PFBA) and perfluorooctanoic acid presented high maximum concentrations of 3207.42, 3015.96, 1941.89 and 826.4 ng L−1 in the water, respectively. There were 12 PFCs detected in crops, with the maximum concentration of 5206.86 ng g−1 for PFBA. The significantly positive correlation (p < 0.05) was observed between the concentrations of PFBA in crops and that in adjacent rivers, indicating that the irrigation most likely contributed to the accumulation of PFBA in the studied crops. The occurrence of the PFCs in the water during the dry season was dominantly regulated by fluorescent dissolved organic matters via the hydrophobic interaction, while it was primarily regulated by the total nitrogen and electrical conductivity via electrostatic interaction during the wet season. The PFCs in the water were mainly from the wastewater discharged from wastewater treatment plants and carpet factories, while the resuspension of the PFCs in sediments was also an important contribution especially in wet season. The PFCs in the river has posed sustained risk to the public health, especially children.
format	article
author	Fengsong Zhang Yonglu Wang Zhuo Wei Guixiang Zhang Jiaqi Wang
author_facet	Fengsong Zhang Yonglu Wang Zhuo Wei Guixiang Zhang Jiaqi Wang
author_sort	Fengsong Zhang
title	Perfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors
title_short	Perfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors
title_full	Perfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors
title_fullStr	Perfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors
title_full_unstemmed	Perfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors
title_sort	perfluorinated compounds in a river basin from qinghai-tibet plateau: occurrence, sources and key factors
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/7556a981537a4ddda129b8bcc53ecd6b
work_keys_str_mv	AT fengsongzhang perfluorinatedcompoundsinariverbasinfromqinghaitibetplateauoccurrencesourcesandkeyfactors AT yongluwang perfluorinatedcompoundsinariverbasinfromqinghaitibetplateauoccurrencesourcesandkeyfactors AT zhuowei perfluorinatedcompoundsinariverbasinfromqinghaitibetplateauoccurrencesourcesandkeyfactors AT guixiangzhang perfluorinatedcompoundsinariverbasinfromqinghaitibetplateauoccurrencesourcesandkeyfactors AT jiaqiwang perfluorinatedcompoundsinariverbasinfromqinghaitibetplateauoccurrencesourcesandkeyfactors
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Perfluorinated compounds in a river basin from QingHai-Tibet Plateau: Occurrence, sources and key factors

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