Contamination, distribution, and sources of heavy metals in the sediments of Andong tidal flat, Hangzhou bay, China

Pang, Hongjiao; Lou, Zhanghua; Jin, Aimin; Yan, Kang-Kang; Jiang, Yan; Yang, Xianhui; Chen, Chen‐Tung Arthur; Chen, Xuegang

doi:10.1016/j.csr.2015.10.002

Cited by 59 publications

(22 citation statements)

References 74 publications

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“…This contamination also affects coastal waters, their ecosystems and their resources. Coastal contamination may be caused by mining activities (e.g., [67]) or results from industrial or urban influences (e.g., [68][69][70]). The physicochemical processes involved and their consequences on the contaminant deposition are themselves research topics, such as organic and inorganic matter chemistry in a salinity gradient (e.g., [71,72]).…”

Section: Issues Associated With Environments and Ecosystemsmentioning

confidence: 99%

Why and How Do We Study Sediment Transport? Focus on Coastal Zones and Ongoing Methods

Ouillon

2018

Water

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Scientific research on sediment dynamics in the coastal zone and along the littoral zone has evolved considerably over the last four decades. It benefits from a technological revolution that provides the community with cheaper or free tools for in situ study (e.g., sensors, gliders), remote sensing (satellite data, video cameras, drones) or modelling (open source models). These changes favour the transfer of developed methods to monitoring and management services. On the other hand, scientific research is increasingly targeted by public authorities towards finalized studies in relation to societal issues. Shoreline vulnerability is an object of concern that grows after each marine submersion or intense erosion event. Thus, during the last four decades, the production of knowledge on coastal sediment dynamics has evolved considerably, and is in tune with the needs of society. This editorial aims at synthesizing the current revolution in the scientific research related to coastal and littoral hydrosedimentary dynamics, putting into perspective connections between coasts and other geomorphological entities concerned by sediment transport, showing the links between many fragmented approaches of the topic, and introducing the papers published in the special issue of Water on "Sediment transport in coastal waters".

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Section: Issues Associated With Environments and Ecosystemsmentioning

confidence: 99%

Why and How Do We Study Sediment Transport? Focus on Coastal Zones and Ongoing Methods

Ouillon

2018

Water

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“…Heavy metal pollution in the estuary environment is a critical problem and poses a serious ecological risk to the coastalmarine ecosystems due to the high toxicity, persistence and non-degradable nature of heavy metals [3]. The sediment in the estuary area plays an essential environmental role to receive and release heavy metals to and from the adjacent area [3]. Sediment pollution by heavy metals has been regarded as a critical problem in marine environment because of their toxicity, persistence and bioaccumulation [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…They are highly vulnerable to the pollutant inputs from river and adjacent areas [2]. Heavy metal pollution in the estuary environment is a critical problem and poses a serious ecological risk to the coastalmarine ecosystems due to the high toxicity, persistence and non-degradable nature of heavy metals [3]. The sediment in the estuary area plays an essential environmental role to receive and release heavy metals to and from the adjacent area [3].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the study on the heavy metal distribution in the sediment of eastern Chongming tidal flat is of great importance. The heavy metal distribution in the sediment of the tidal flat is affected by many factors, such as grain size [9][10][11], redox cycle of Fe and Mn, humic acid [7], anthropogenic and lithogenic sources [3], the textual characteristic, mineralogical composition and depositional environment [11]. Although there have been extensive studies on the heavy metal distribution in the tidal flat sediment, the systematic investigation on the heavy metal distribution at each part of the tidal flat is scare.…”

Section: Introductionmentioning

confidence: 99%

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The assessment of heavy metal distribution in the sediment of eastern Chongming tidal flat, China

Lu¹,

Yuan²

2016

WIT Transactions on Ecology and the Environment

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The distribution of heavy metals in tidal flat sediment is of great significance on the estuary environment. This study aims to find the heavy metal distribution mechanism at different parts of the tidal flat on the Yangtze Estuary, China. Eleven sediment cores were collected at the high, middle and low tidal flats of eastern Chongming Island in four seasons -spring, summer, autumn and winter. The contents of elements Al, Cu, Cr, Fe, Mn, Pb, Rb, S, Si, Sr, Zn, Zr and humic acid in the sediment were analyzed. Pearson correlation analysis and principle component analysis (PCA) were used to analyze the main factors for heavy metal distribution in the tidal flat. The results showed that the redox and pH conditions in the sedimentation environment, grain size and humic acid had a significant effect on the distribution of heavy metals in the sediment of the tidal flat. The leading factors for heavy metal distribution and migration in the sediments are different at different parts of the tidal flat. The main factors for heavy metal distribution in the sediment of the low tidal flat are the source of sediment and the hydrodynamic force, while in the middle and high tidal flats, the effect of humic acid increases. The heavy metal distribution in the sediments of the middle tidal flat is mainly affected by the redox and pH condition of the sedimentation environment and humic acid, while in the high tidal flat, humic acid is the main controlling factor for heavy metal distribution in the sediment.

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“…Procedimentos geoquímicos normalmente incluem a normalização com elementos conservativos, tais como Al, Fe, Sc, Cs e Li (ex. LIN et al, 2008;PANG et al, 2015;WANG et al, 2015a). Esta normalização geoquímica é baseada no princípio de que as razões nas concentrações de metais para um valor de referência são relativamente constantes na crosta e a fonte de elementos conservativos é primariamente material da crosta (LIN et al, 2008).…”

Section: íNdices De Qualidade Ambientalunclassified

Índice de Qualidade Ambiental para avaliação de metais e semimetais em sedimentos do Complexo Estuarino de Santos e São Vicente (SP, Brasil)

Kim¹

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To study trace metal contamination in superficial sediment samples it is necessary to distinguish the anthropogenic and lithogenic contributions. Normalization methods and environmental quality indices are applied in order to minimize the lithogenic influence and simplify the interpretation. The aim of this study is to apply environmental quality indices, using levels of metals, and evaluate their applicability on estuarine environments as Baixada Santista in which industrial, touristic activities and urbanization exert pressure on the system as a whole. Levels of metals and As were analyzed by ICP-OES and geochemical parameters as TOC, NT, mud content, δ 13 C and δ 15 N were also obtained. A total of eight indices were applied and the mud content was essential on environmental studies, since it is the main factor on controlling the natural distribution of trace metals in sediments. In general, the prevailing contamination was confined in the inner part of the estuary around Cubatão Industrial Complex and the use of indices are suitable for estuarine system studies. On sediment contamination studies, features as normalization using a background value and the grain size, gathering all levels in one showed essential. The Sediment Pollution Index considers all, being a good index to this purpose.

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Contamination, distribution, and sources of heavy metals in the sediments of Andong tidal flat, Hangzhou bay, China

Cited by 59 publications

References 74 publications

Why and How Do We Study Sediment Transport? Focus on Coastal Zones and Ongoing Methods

Why and How Do We Study Sediment Transport? Focus on Coastal Zones and Ongoing Methods

The assessment of heavy metal distribution in the sediment of eastern Chongming tidal flat, China

Índice de Qualidade Ambiental para avaliação de metais e semimetais em sedimentos do Complexo Estuarino de Santos e São Vicente (SP, Brasil)

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