Trace Metal Mobilization from Surficial Sediments of the Seine River Estuary

Hamzeh, Mariam; Ouddane, Baghdad; Daye, Mirna; Halwani, Jalal

doi:10.1007/s11270-014-1878-0

Cited by 43 publications

(24 citation statements)

References 69 publications

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“…The high carbonate content may explain the relatively high levels of Zn found in F1 fraction. These results are similar to the reported by other authors, which indicate a high affinity of Zn to carbonates and hydrous Fe-oxides (Li and Thornton 2001;Relić et al 2005;Farkas et al 2007;Nemati et al 2011;Hamzeh et al 2014). In alkaline conditions, the association of Zn with oxyhydroxides and with the residual fraction has been reported by several authors (Banin et al 1990;Xiang et al 1995), where the percentage of Zn associated with Fe and Mn oxyhydroxides increased with increasing pH (Xiang et al 1995).…”

Section: Discussionsupporting

confidence: 91%

“…Thus, the affinity for carbonates follows the sequence Pb > Cd > Zn, varying between 40.0 to 76.2 % for Cd, 40.3 to 81.2 % for Pb and 2.15 to 34.8 % for Zn, which might indicate a pH suitable for metal precipitation, since in alkaline conditions carbonates are the prevailing trap of heavy metals (Hall 1998). In addition, calcium carbonate may act as a strong absorbent for heavy metals by forming complex as double salts as CaCO 3 ·ZnCO 3 and CaCO 3 ·PbCO 3 (Anju and Banerjee 2011;Hamzeh et al 2014). However, these carbonate phases are also more easily dissolved and consequently the metals releasing, which become more bioavailable for plants uptake, particularly if low amounts of secondary phases with high adsorption ability are present .…”

Section: Discussionmentioning

confidence: 99%

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Assessment of metal pollution in a former mining area in the NW Tunisia: spatial distribution and fraction of Cd, Pb and Zn in soil

Othmani

Souissi²,

Durães

et al. 2015

Environ Monit Assess

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This study aims to evaluate the impact of the former mining Touiref district (NW Tunisia) on the spatial distribution of metal contamination. In order to characterize the metal content of the tailings and to assess how far the soils from the district could be impacted by metals, a sampling campaign was conducted. According to the spatial distribution concentration maps of potential toxic elements (PTE), the highest concentrations occur near the flotation tailings and in mining facilities and decrease abruptly with distance. These results confirm that wind is the main agent capable of dispersing metals in a W-E direction, with concentrations exceeding the standards of soil quality for Cd, Pb and Zn over several hundred metres away from the source, facilitated by the small-size fraction and low cohesion of tailings particles. Chemical fractionation showed that Pb and Cd were mainly associated with the acid-soluble fraction (carbonates) and Fe-(oxy) hydroxides, while Zn was mainly associated with Fe-(oxy) hydroxides but also with sulphides. Thus, the immobilization of metals in solution may be favoured by the alkaline conditions, promoted by carbonates dissolution. However, being carbonate important-bearing phases of Cd and Pb (but also for Zn), the dissolution facility of these minerals may enhance the release of metals, particularly far away from the mine where the physicochemical conditions can be different. Also, the metal uptake by plants in these alkaline conditions may be favoured, especially if secondary phases with high sorption ability are reduced at this site. A remediation plan to this area is needed, with particularly attention in the confinement of the tailings.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Assessment of metal pollution in a former mining area in the NW Tunisia: spatial distribution and fraction of Cd, Pb and Zn in soil

Othmani

Souissi²,

Durães

et al. 2015

Environ Monit Assess

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“…By this technique, presence of Halita was also identified. The preferential binding of Cr to the residual fraction and its distribution was similar to those found in several studies [34,36]. Results indicate that the strongest Cr's bonds were those with silicates; thus, Cr is less mobile and not bioavailable to aquatic fauna.…”

Section: Resultssupporting

confidence: 83%

“…High proportion of Cu and the highest proportions of Pb, Zn and V were bounded to reducible fraction (highest in the deeper stations, Fig. 3, with 31, 58, 74, and 69 % on the average, respectively, the first three being similar to those found in the Seine River estuary [36]. For Zn, Pb and Cu, 9, 8 and 14 % on average are bounded to carbonate fractions.…”

Section: Resultsmentioning

confidence: 61%

Chemical and sequential analysis of some metals in sediments from the North Coast of the Gulf of Mexico

Martı́nez

Tejeda

Estañol

et al. 2016

J Radioanal Nucl Chem

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Sediments collected from the North Coast of the Gulf of Mexico got carefully mixed, dried, and finally subjected to physical and chemical analysis. Metal concentration was determined by energy dispersive X-ray fluorescence (EDXRF). Sequential chemical analysis was performed by modified TESSIER technique. Results and statistical analysis (a = 0.05) show concentrations of most elements (excepting Mn, Ca, Ga, As and Pb) in the range of those of the earth crust's values, which set a sampling zone base line. Sequential extraction shows the potential risk of mobilization of metals sequestered in particulate phases by oxidation of anoxic sediments or intense organic matter degradation.

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“…Tide data are considered useful information for both civil and hydraulic engineers who provide hydraulic descriptions, information for water quality model management and frameworks for evaluating sediment and chemical dynamics in bays [5][6][7]. Furthermore, heavy metals can be released again into the water column from sediments as free ions, and/or complex compounds when environmental conditions are changed [8]. These heavy metals can have deleterious effects on fauna, flora and aquatic micro-organisms, and can enter into human bodies via the food chain, inhalation or dermal absorption, potentially leading to critical health disorders that affect the nervous system, endocrine system and/or the immune system [2,9,10].…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution of heavy metal contaminations in Yowie Bay sediments and their environmental impacts

Alyazichi

Jones

McLean

2015

WIT Transactions on Ecology and the Environment

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We investigated the distribution of heavy metals Ni, Cu, Zn, As, Cd and Pb in marine sediments in order to evaluate the pollution status in Yowie Bay, in the Port Hacking Estuary, NSW, Australia. Twenty one surface sediments were collected in this study and hydrodynamic parameters (current track and velocity) were also measured in order to explain the distribution of the heavy metals in the bay. Effect Range Low and Effect Range Median statistics were used to assess the environmental effect in order to offer measures to protect the ecosystem from pollution by the accumulation of heavy metals in the bay. The results showed that the heavy metals Ni, Cu, Zn, As, Cd and Pb had similar distribution patterns in surface sediments. The surface sediments were considerably contaminated by copper, cadmium and lead. The highest concentrations of the metals were found to be in the northeast of the bay, which is in close proximity to discharge points and moored watercraft, with the highest reading (sample YO8) having concentrations of 20, 107.4, 304.2, 15, 12.3 and 176.5 ppm, respectively. The heavy metal pollution was concentrated in the inner bay, which has greater depth and contains organic matter and muddy particles (illite, kaolinite and chlorite). The sources of pollution by heavy metals were found to be discharge points and human activities (gasoline fumes, watercraft and boatyards) and this pollution began with European settlement which now surrounds the bay.

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Trace Metal Mobilization from Surficial Sediments of the Seine River Estuary

Cited by 43 publications

References 69 publications

Assessment of metal pollution in a former mining area in the NW Tunisia: spatial distribution and fraction of Cd, Pb and Zn in soil

Assessment of metal pollution in a former mining area in the NW Tunisia: spatial distribution and fraction of Cd, Pb and Zn in soil

Chemical and sequential analysis of some metals in sediments from the North Coast of the Gulf of Mexico

Spatial distribution of heavy metal contaminations in Yowie Bay sediments and their environmental impacts

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