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Sources and ecological risk assessment of the seawater potentially toxic elements in Yangtze River Estuary during 2009–2018
Environmental Monitoring and Assessment ( IF 3 ) Pub Date : 2021-01-07 , DOI: 10.1007/s10661-020-08795-0
Yang Hu , Ning He , Mingxuan Wu , Pengling Wu , Peimin He , Ying Yang , Qinyi Wang , Maoqiu Wang , Shubo Fang

The purpose of this paper is to understand the sources of potentially toxic elements (PTE) and provide some suggestions to control PTE pollution. For this purpose, data from 30 monitoring stations for 2009–2018 were used to assess the PTE concentrations of Hg, Cu, Pb, Cd, Zn, and As in the Yangtze River Estuary. The PTE concentrations varied significantly (P < 0.05) by one-way ANOVA in the ranges of 0.002–0.224 (Hg, 0.043 ± 0.032), 0–9.700 (Cu, 1.600 ± 1.000), 0–3.900 (Pb, 1.000 ± 0.700), 0.002–0.370 (Cd, 0.050 ± 1.000), 0.100–85.000 (Zn, 14.000 ± 13.000), and 0.998–3.290 μg/L (As, 1.857 ± 0.455). Generally, the PTE concentrations decreased from year to year and were consistently satisfied the “grade-one seawater” quality standard after 2014. The concentrations of Cu, Cd, Zn, and As decreased as far from inshore, while increased closer to land in the estuary. Concentrations of Pb and Hg showed differences because of local industrial and aquacultural activities. This study identified three clusters and two PTE sources and provided some constructive suggestions for pollution control in PTE.



中文翻译:

2009-2018年长江口海水潜在毒性元素的来源及生态风险评估

本文的目的是了解潜在毒性元素(PTE)的来源,并提供一些控制PTE污染的建议。为此,使用2009-2018年来自30个监测站​​的数据评估长江口中汞,铜,铅,镉,锌和砷的PTE浓度。PTE浓度变化显着(P在0.002-0.224(Hg,0.043±0.032),0-9.700(Cu,1.600±1.000),0-3.900(Pb,1.000±0.700),0.002-0.370(Cd)范围内通过单因素方差分析<0.05) ,0.050±1.000),0.100-85.000(Zn,14.000±13.000)和0.998-3.290μg/ L(As,1.857±0.455)。一般而言,PTE的浓度逐年下降,并在2014年后一直满足“一级海水”质量标准。Cu,Cd,Zn和As的浓度在远离近海的地方下降,而在靠近陆地的地方上升。河口。由于当地的工业和水产养殖活动,铅和汞的浓度存在差异。本研究确定了三个集群和两个PTE来源,并为PTE的污染控制提供了建设性的建议。

更新日期:2021-01-07
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