Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China

Abstract Studies on trace element (TE) pollution in abiotic matrices have typically focused on water, sediment, and soil, either separately or in pairs. The importance of multi-media connectivity has been ignored. This study analyzed the concentrations of 6 TEs in three connected environmental compa...

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Autores principales:	Wenyan He, Fei Li, Jiang Yu, Min Chen, Yun Deng, Jia Li, Xiliang Tang, Zhuoyu Chen, Zhongluan Yan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/1f6155136c294b1abea13d1e8125de5a
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spelling	oai:doaj.org-article:1f6155136c294b1abea13d1e8125de5a2021-12-02T17:13:22ZRisk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China10.1038/s41598-021-99626-w2045-2322https://doaj.org/article/1f6155136c294b1abea13d1e8125de5a2021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99626-whttps://doaj.org/toc/2045-2322Abstract Studies on trace element (TE) pollution in abiotic matrices have typically focused on water, sediment, and soil, either separately or in pairs. The importance of multi-media connectivity has been ignored. This study analyzed the concentrations of 6 TEs in three connected environmental compartments of a 28-km section of the lower reach of the Jinsha River. The ecological risk posed by TEs was higher in soil than in sediment. The contribution of exposure pathways to human health risk were ranked as ingestion > dermal contact > inhalation. An improved regional environmental risk index (RERI) method was then developed to evaluate the comprehensive risk on both ecology and human health caused by TEs. The average RERI value was generally higher in the wet season (0.42) than in the dry (0.41) and dry-to-wet transition seasons (0.08) because of the combined effects of the high TE concentrations in riparian soil and the long exposure time. Source apportionment indicated that industrial activities, weathering of parent rock, and agricultural activities were possible sources of TEs in this region. The methods and results of this study could inform local environmental management and provide references for similar cases wherein multiple compartments of river systems should be considered.Wenyan HeFei LiJiang YuMin ChenYun DengJia LiXiliang TangZhuoyu ChenZhongluan YanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wenyan He Fei Li Jiang Yu Min Chen Yun Deng Jia Li Xiliang Tang Zhuoyu Chen Zhongluan Yan Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China
description	Abstract Studies on trace element (TE) pollution in abiotic matrices have typically focused on water, sediment, and soil, either separately or in pairs. The importance of multi-media connectivity has been ignored. This study analyzed the concentrations of 6 TEs in three connected environmental compartments of a 28-km section of the lower reach of the Jinsha River. The ecological risk posed by TEs was higher in soil than in sediment. The contribution of exposure pathways to human health risk were ranked as ingestion > dermal contact > inhalation. An improved regional environmental risk index (RERI) method was then developed to evaluate the comprehensive risk on both ecology and human health caused by TEs. The average RERI value was generally higher in the wet season (0.42) than in the dry (0.41) and dry-to-wet transition seasons (0.08) because of the combined effects of the high TE concentrations in riparian soil and the long exposure time. Source apportionment indicated that industrial activities, weathering of parent rock, and agricultural activities were possible sources of TEs in this region. The methods and results of this study could inform local environmental management and provide references for similar cases wherein multiple compartments of river systems should be considered.
format	article
author	Wenyan He Fei Li Jiang Yu Min Chen Yun Deng Jia Li Xiliang Tang Zhuoyu Chen Zhongluan Yan
author_facet	Wenyan He Fei Li Jiang Yu Min Chen Yun Deng Jia Li Xiliang Tang Zhuoyu Chen Zhongluan Yan
author_sort	Wenyan He
title	Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China
title_short	Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China
title_full	Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China
title_fullStr	Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China
title_full_unstemmed	Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China
title_sort	risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the jinsha river, china
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/1f6155136c294b1abea13d1e8125de5a
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Risk assessment and source apportionment of trace elements in multiple compartments in the lower reach of the Jinsha River, China

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