Multivariate geostatistical analysis and source identification of heavy metals in the sediment of Poyang Lake in China

Dai, Lei; Wang, Lingqing; Li, Lianfang; Liang, Tao; Zhang, Yongyong; Ma, Chuanxin; Xing, Baoshan

doi:10.1016/j.scitotenv.2017.10.085

Cited by 204 publications

(83 citation statements)

References 48 publications

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“…Zn and Cu originate from both the sources of Cd/As and Cr. Atmospheric and river inflows transport Pb from industrial wastewater and sewage discharge [25,61].…”

Section: Discussionmentioning

confidence: 99%

Assessment of Heavy Metal Pollution in the Sediment of the Main Tributaries of Dongting Lake, China

Chen

Zheng

et al. 2018

Water

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Heavy metal pollution in sediment is one of the most serious problems in water bodies, including rivers, which can cause secondary pollution when environmental conditions change. In this study, surface sediment samples collected from the four main tributaries of Dongting Lake (i.e., Xiangjiang River (XR), Zishui River (ZR), Yuanjiang River (YR), and Lishui River (LR)) were analyzed for concentrations of Zn, Cr, Cu, As, Cd, and Pb. The spatial distribution, source, and potential ecological risk of these metals were determined. The results suggest a great spatial heterogeneity of heavy metals in the sediment of the studied rivers. Heavy metals had highest concentrations in the sediment of XR, especially midstream and downstream. A principal component analysis (PCA) and correlation analysis indicated that Cd and As were mainly from industrial wastewater and mineral mining, Cr came from natural process and agricultural activities, and Zn and Cu potentially from both. Pb was originated from atmospheric deposition and river inflow transportation. According to the geo-accumulation index (I geo ), enrichment factor (EF), and risk index (RI) assessment, heavy metals pollution was highest in the sediment of XR, and Cd was the main pollutant in the sediment of XR, presenting considerable potential ecological risk. This may contribute to heavy metal pollution in Dongting Lake. This paper provides a reference for the aquatic environmental management of heavy metals in Dongting Lake area and its tributaries.

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“…Zn and Cu originate from both the sources of Cd/As and Cr. Atmospheric and river inflows transport Pb from industrial wastewater and sewage discharge [25,61].…”

Section: Discussionmentioning

confidence: 99%

Assessment of Heavy Metal Pollution in the Sediment of the Main Tributaries of Dongting Lake, China

Chen

Zheng

et al. 2018

Water

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“…Al, Ti, Fe, Sr, Ba, Mn and Zn were still recognized as the primary metallic components by 5050, 5470, 3826, 2162, 493.7, 1283 and 1575 nmol·L −1 , respectively. Pore water generally enriched trace elements compared with those in the surface water due to relative long reaction time between water and sediment mineral [1,4]. The average proportion of metals in DOC in pore waters amounted up to 5230.98 nmol·(mg DOC) −1 , whereas this value was only 2133 nmol·(mg DOC) −1 in water above the deposition layer.…”

Section: Characterization Of Dissolved Heavy Metal In Lake Dianchimentioning

confidence: 99%

“…It is important to delineate the behavior and sources of metals in sediments/suspended particulate matter and pollution level in the aquatic system [1][2][3][4]. Trace metals and organic matter interacted in a series of biogeochemical processes, and nutritive elements were not excluded.…”

Section: Introductionmentioning

confidence: 99%

“…Deposited metals originated from bacterial cells encapsulated by clay minerals, or adsorption by oxyhydroxides/detrital clays to bring to sediment [13,14]. Once the deposition condition changed, these metals could be released into pore water, and grain size influenced greatly the trapping of metals in the solid phase [15,16].Iron oxides, organic matter and amorphous clay minerals control the removing and transforming of trace metals in water; organic matter not only fixed trace metals as Ni, Cd, Cu and Zn into sediments, but also removed them [1,4,17]. Generally, humic substances are the primary metal-binding ligands for trace metals, and most O-containing acid functional groups, such as carboxyls and phenols and relatively low abundance S-and N-containing functional groups, were proved to be metal-binding ligands, and a molecular structure proximal to metal-binding sites may be significant in metal coordination by DOM, creating stable complexes of varying complexing strengths [18,19].…”

mentioning

confidence: 99%

“…Iron oxides, organic matter and amorphous clay minerals control the removing and transforming of trace metals in water; organic matter not only fixed trace metals as Ni, Cd, Cu and Zn into sediments, but also removed them [1,4,17]. Generally, humic substances are the primary metal-binding ligands for trace metals, and most O-containing acid functional groups, such as carboxyls and phenols and relatively low abundance S-and N-containing functional groups, were proved to be metal-binding ligands, and a molecular structure proximal to metal-binding sites may be significant in metal coordination by DOM, creating stable complexes of varying complexing strengths [18,19].…”

mentioning

confidence: 99%

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Spatial Variations of Trace Metals and Their Complexation Behavior with DOM in the Water of Dianchi Lake, China

Xiao

Mostofa

et al. 2019

IJERPH

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The dynamics of trace metals and the complexation behavior related to organic matter in the interface between water and sediment would influence water quality and evolution in the lake system. This study characterized the distribution of trace metals and the optical properties of dissolved organic matter (DOM) on the surface, and the underlying and pore water of Dianchi Lake (DC) to understand the origin of metals and complexation mechanisms to DOM. Some species of trace metals were detected and Al, Ti, Fe, Zn, Sr and Ba were found to be the main types of metals in the aquatic environment of DC. Ti, Fe, Sr and Ba predominated in water above the depositional layer. Al, Ti, Fe and Sr were the most abundant metallic types in pore water. Mn and Zn were the main type found at the southern lake site, reflecting the contribution of pollution from an inflowing river. The correlations between DOM and metals suggested that both originated from the major source as particulate organic matter (POM), associated with weathering of Ca-, Mg-carbonate detritus and Fe- or Mn-bearing minerals. High dynamics of DOM and hydrochemical conditions would change most metal contents and speciation in different water compartments. Proportions of trace metals in dissolved organic carbon (DOC) in natural waters were correlated with both DOM molecular weight and structure, different metals were regulated by different organic properties, and the same metal also had specific binding characteristic with DOM in various water compartments. This study highlighted the interrelation of DOM and metals, as well as the pivotal role that organic matter and nutrients played during input, migrations and transformations of metals, thereby reflecting water quality evolution in the lake systems.

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Spatial distribution of trace and rare earth elements of bottom sediments in Lake Ostrowite, Bory Tucholskie National Park, Poland

Sojka,

Choiński,

Siepak

2024

Land Degrad Dev

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Lake pollution has attracted concerns worldwide; especially the excessive accumulation of trace elements (TEs) and rare earth elements (REEs) in bottom sediments can pose a serious threat to ecosystem health. However, there is still a knowledge gap on the level of sediment pollution in lakes isolated from the direct impact of pollution sources, their spatial variability, and also on the factors influencing this state. The aim of this study is to investigate the level and spatial variability of TEs and REEs concentrations, as well as to determine their source and the factors determining their distribution in the bottom sediments of Lake Ostrowite. Lake Ostrowite is the largest and deepest water body located in the Bory Tuholskie National Park (in northern Poland), which completely isolates the lake from the direct impact of pollution sources. The study covered analyses of 32 surface samples of bottom sediments. The concentrations of 24 TEs and 14 REEs were determined using inductively coupled plasma mass spectrometry (ICP‐QQQ‐MS). The assessment of the enrichment of bottom sediments in TEs and REEs employed geochemical background values (GBV) that provided the basis for the calculation of relative concentrations and geochemical indices. The determination of their sources and supply routes was based on the cluster analysis and principal component analysis. The obtained results point to the enrichment of the bottom sediments with TEs and REEs. Relative concentration values of TEs and REEs in reference to geochemical background values were in ranges from 0.01 to 7.31, at an average of 0.99, and from 0.03 to 4.29, averaging 1.76, respectively. The enrichment factor values show moderately severe enrichment of sediments at the study sites. This was primarily determined by the concentrations of Ag (from the TEs group) and Lu (from the REEs group). The metal pollution index values showed an approximate spatial distribution of points in terms of the presence of TEs and REEs. The lowest concentrations of TEs and REEs occurred on the eastern shore of the western basin of Lake Ostrowite. TEs and REEs concentrations in sediments are positively correlated with the content of organic matter and depth and negatively correlated with distance of the sampling point from the river outflow from Lake Ostrowite. On the eastern shore of the western basin, TEs and REEs concentrations are additionally shaped by wind, predominantly from the western direction. With water wave action, organic matter is transported to the central part of the western basin, where it is accumulated. Since the lake is isolated from point and nonpoint pollution sources, relevant from a biogeochemical point of view are dry and wet depositions from the atmosphere as well as aquatic vegetation, shoreline vegetation, forest litter, soil, and groundwater.

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Multivariate geostatistical analysis and source identification of heavy metals in the sediment of Poyang Lake in China

Cited by 204 publications

References 48 publications

Assessment of Heavy Metal Pollution in the Sediment of the Main Tributaries of Dongting Lake, China

Assessment of Heavy Metal Pollution in the Sediment of the Main Tributaries of Dongting Lake, China

Spatial Variations of Trace Metals and Their Complexation Behavior with DOM in the Water of Dianchi Lake, China

Spatial distribution of trace and rare earth elements of bottom sediments in Lake Ostrowite, Bory Tucholskie National Park, Poland

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