Microelement composition of bottom sediments in Mekong River delta, Republic of Vietnam

Abstract

Mean concentrations of Zn, Cu, Pb, Cd, As, and Hg in water and bottom sediments of Mekong Delta (Socialist Republic of Vietnam) over low-water period of 2013 were evaluated. The space distribution of the chemical composition of bottom sediments shows a tendency toward an increase in the concentrations of the examined microelements toward the sea coastline. The mechanism of those changes was considered and attributed to a release of low-solubility compounds from water and with sorption of microelements on alluvium and sediment particles at the mixing of river and sea water. The value of surface water pH was suggested as an indicator of current and forecasted variations of the concentrations of some microelements in bottom sediments.

Original language	English
Pages (from-to)	683-689
Number of pages	7
Journal	Water Resources
Volume	42
Issue number	5
DOIs	https://doi.org/10.1134/S0097807815050061
Publication status	Published - 7 Sep 2015

Keywords

bottom sediment
chemical composition
Mekong River delta
Socialist Republic of Vietnam

ASJC Scopus subject areas

Water Science and Technology

Access to Document

10.1134/S0097807815050061

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title = "Microelement composition of bottom sediments in Mekong River delta, Republic of Vietnam",

abstract = "Mean concentrations of Zn, Cu, Pb, Cd, As, and Hg in water and bottom sediments of Mekong Delta (Socialist Republic of Vietnam) over low-water period of 2013 were evaluated. The space distribution of the chemical composition of bottom sediments shows a tendency toward an increase in the concentrations of the examined microelements toward the sea coastline. The mechanism of those changes was considered and attributed to a release of low-solubility compounds from water and with sorption of microelements on alluvium and sediment particles at the mixing of river and sea water. The value of surface water pH was suggested as an indicator of current and forecasted variations of the concentrations of some microelements in bottom sediments.",

keywords = "bottom sediment, chemical composition, Mekong River delta, Socialist Republic of Vietnam",

author = "Zying, {Fung Tkhai} and Savichev, {O. G.} and Khyong, {Nguen Kuok}",

year = "2015",

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language = "English",

volume = "42",

pages = "683--689",

journal = "Water Resources",

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TY - JOUR

T1 - Microelement composition of bottom sediments in Mekong River delta, Republic of Vietnam

AU - Zying, Fung Tkhai

AU - Savichev, O. G.

AU - Khyong, Nguen Kuok

PY - 2015/9/7

Y1 - 2015/9/7

N2 - Mean concentrations of Zn, Cu, Pb, Cd, As, and Hg in water and bottom sediments of Mekong Delta (Socialist Republic of Vietnam) over low-water period of 2013 were evaluated. The space distribution of the chemical composition of bottom sediments shows a tendency toward an increase in the concentrations of the examined microelements toward the sea coastline. The mechanism of those changes was considered and attributed to a release of low-solubility compounds from water and with sorption of microelements on alluvium and sediment particles at the mixing of river and sea water. The value of surface water pH was suggested as an indicator of current and forecasted variations of the concentrations of some microelements in bottom sediments.

AB - Mean concentrations of Zn, Cu, Pb, Cd, As, and Hg in water and bottom sediments of Mekong Delta (Socialist Republic of Vietnam) over low-water period of 2013 were evaluated. The space distribution of the chemical composition of bottom sediments shows a tendency toward an increase in the concentrations of the examined microelements toward the sea coastline. The mechanism of those changes was considered and attributed to a release of low-solubility compounds from water and with sorption of microelements on alluvium and sediment particles at the mixing of river and sea water. The value of surface water pH was suggested as an indicator of current and forecasted variations of the concentrations of some microelements in bottom sediments.

KW - bottom sediment

KW - chemical composition

KW - Mekong River delta

KW - Socialist Republic of Vietnam

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