Fractionation of Heavy Metals in Surface Sediments of Taihu Lake, East China

Wang, H.; Wang, C.X.; Wang, Z.J.; Cao, Zhaoliang

doi:10.1023/b:egah.0000039594.19432.80

Cited by 65 publications

(50 citation statements)

References 11 publications

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“…A special application was prepared, which enabled 52 Cr isotopes measurement in the DRC mode and 75 As, 55 Mn, 60 Ni, 65 Cu, 66 Zn, 114 Cd, 75 As, 208 Pb measurements in the standard mode. Methodology for the determination of metals/metaloids using ICP-MS spectrometer was presented in [24].…”

Section: Sampling and Analytical Methodsmentioning

confidence: 99%

Impact of Mining Dump on the Accumulation and Mobility of Metals in the Bytomka River Sediments

Jabłońska‐Czapla¹,

Szopa²,

Rosik-Dulewska³

2014

Archives of Environmental Protection

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Abstract:The research aim was to determine the long-term impact of the mine waste stored at the coal waste dump Hałda Ruda on the content of heavy metals in the bottom sediments of the Bytomka River. It is a watercourse fl owing along this coal waste dump and has been under its infl uence for over fi fty years. The research also attempted to determine the seasonality of changes (2 years) and mobility of selected elements.The article presents total contents of Cr, Mn, Ni, Cu, Zn, As, Cd and Pb in the bottom sediments collected from the Bytomka River. It also focuses on the distribution of these elements in particular geochemical fractions determined with the Tessier's sequential chemical extraction procedure. Total element contents were determined with an EDPXRF (Energy Dispersive X-ray Fluorescence) technique. The extractants of particular Tessier's fractions were determined quantitatively with an ICP-MS (Inductively Coupled Plasma Mass Spectrometry) spectrometer. The research results show that the stored waste signifi cantly infl uences the contents of heavy metals in the Bytomka River bottom sediments. The lowest concentration of heavy metals was observed at the B1 spot (above the dump), while the highest one was measured at the B3 spot (below the dump).Sequential chemical extraction of the bottom sediments indicates that the Zn content in the ion-exchange and carbonate fractions diminished within a year. Nevertheless, Zn bound to Fe and Mn oxides acted in the opposite way. Mn, Zn and Pb are the most dangerous elements from the viewpoint of environmental hazards, as their total concentrations were high. Moreover, their high contents were observed in the most mobile (ion-exchange and carbonate) fractions. Extremely toxic Cd was bound to the oxide fraction to the largest extent. Cu was mainly bound to the organic fraction while environmentally hazardous Cr was bound to the residual fraction.

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Section: Sampling and Analytical Methodsmentioning

confidence: 99%

Impact of Mining Dump on the Accumulation and Mobility of Metals in the Bytomka River Sediments

Jabłońska‐Czapla¹,

Szopa²,

Rosik-Dulewska³

2014

Archives of Environmental Protection

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“…Sediments are a significant reservoir and source of metals in the aquatic environment and mediate transport and storage of hazardous metals (Guevara et al 2005;Moriilo et al 2004). The concentration of heavy metals and metalloid in sediments from polluted aquatic environments may be hundreds or even tens of thousands of times greater than sediments from non-polluted aquatic environments (Wang et al 2002). Consequently, understanding the spatial distribution of heavy metals in sediments can provide the evidence of the anthropogenic impacts and is critical for environmental management and decision-making.…”

Section: Introductionmentioning

confidence: 96%

Speciation and ecological risk of heavy metals and metalloid in the sediments of Zhalong Wetland in China

Zang

Xiao

et al. 2013

Int. J. Environ. Sci. Technol.

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A total of 271 sediments samples from the Zhalong Wetland were analyzed for concentration and distribution of Hg, Cd, As, Cu, Pb, Zn, Cr, and Zn; their speciation according to the modified European Community Bureau of Reference sequential extraction procedures and their ecological risk based on Lars Hakanson's potential ecological risk assessment and risk assessment code were made. The results can be summarized as the followings: (1) Concentrations of all metals measured were above soil background values of Songnen Plain, and their spatial distributions were distinctly different. The concentrations of metals (except Pb) were high in the east, followed by the north, and were relatively low in the core zone and south. The concentration of Pb was high in the north, south, and west, compared with low concentration in the core zone and east. (2) The dominant proportion of Pb, Zn, and Cr was in the residual fraction, suggesting that they were environmental stable. The concentrations of Cu and As in the reducible fraction, the concentration of Cd in the acidsoluble fraction, and the concentration of Hg in the oxidizable fraction were relatively high, indicating they had greater environmental effects. (3) The evaluation of the ecological risk showed that Cd, Hg, and As had relatively high ecological risk index, especially the ecological risk of Cd should be paid attention to. In general, the ecological risk of the heavy metals and metalloid by zone was experimental zone [ buffering zone [ ecological tourism zone [ core zone.

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“…However, the presence of pedogenic iron oxide phases may also influence the sorption capacity of this sample as this sample is characterized by the highest reducible iron content in this profile (see Table 1). Many studies have shown that the iron-oxide phases in soils may significantly contribute to the adsorption of these metals, especially for Pb and Zn [44,45].…”

Section: Discussionmentioning

confidence: 99%

Single element and competitive sorption of copper, zinc and lead onto a Luvisol profile

Sipos

2009

Open Geosciences

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Abstract:The sorption parameters of Cu, Zn and Pb are related to the composition of the different genetic horizons of a Luvisol profile in batch sorption experiments. The affinities of metals towards the soil samples from different horizons followed the same sequence, e.g. Pb Cu Zn. By far the highest metal retention was found in the C k horizon due to the alkaline conditions. It is followed by the A horizon with its high organic matter content, while the lowest sorption capacity was found in the B t horizon. In the horizons free of carbonate, primarily Pb and Cu were immobilized. The studied soil can be characterized by high amount of organic matter, clay accumulation horizon, as well as calcareous subsoil. This kind of profile development makes soils able to immobilize a significant metal pollution.

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Fractionation of Heavy Metals in Surface Sediments of Taihu Lake, East China

Cited by 65 publications

References 11 publications

Impact of Mining Dump on the Accumulation and Mobility of Metals in the Bytomka River Sediments

Impact of Mining Dump on the Accumulation and Mobility of Metals in the Bytomka River Sediments

Speciation and ecological risk of heavy metals and metalloid in the sediments of Zhalong Wetland in China

Single element and competitive sorption of copper, zinc and lead onto a Luvisol profile

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