Comparison of three procedures (single, sequential and kinetic extractions) for mobility assessment of Cu, Pb and Zn in harbour sediments

Hamdoun, Hakim; Leleyter, Lydia; Van-Veen, E.; Coggan, John; Basset, B.; Lemoine, Mélanie; Baraud, Fabienne

doi:10.1016/j.crte.2015.03.003

Cited by 18 publications

(16 citation statements)

References 51 publications

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“…The lower mobility of Cu, Co, and Ni has been also reported in other studies (Fangueiro et al 2005;Chakraborty 2012). In contrast, Hamdoun et al (2015) obtained high mobility of Cu in marine sediments from Ouistreham and Concarneau Harbors (France) and Pool (UK). Leleyter et al (2012) reported high and low mobility for Pb and Zn, respectively, in estuarine sediments in France.…”

Section: Mobility Of Zn Cu Pb Co and Nisupporting

confidence: 79%

“…Metal mobility in sediments (and soils) is estimated through kinetic and sequential extraction methods (Santos et al 2010;Chakraborty 2012;Chakraborty et al 2012a, b;Hamdoun et al 2015), Diffusive Gradients in Thin Films technique, flow techniques, and Batch techniques. Each method/technique has its limits; however, combining two techniques or methods is more efficient than studying one alone (Gismera et al 2004).…”

Section: Responsible Editor: Nives Ogrincmentioning

confidence: 99%

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The mobility of the trace metals copper, zinc, lead, cobalt, and nickel in tropical estuarine sediments, Ebrie Lagoon, Côte d’Ivoire

et al. 2018

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Purpose Trace metals accumulate in the food web and can pose high risks to human health and aquatic biota. We investigated seasonal and spatial variations of Cu, Zn, Pb, Co, and Ni mobility in surface sediments (0-5 cm) and their potential toxicity. Materials and methods The sampling was carried out in three embayments of the Ebrie Lagoon (Côte d'Ivoire) during the rainy and dry seasons. The sequential and kinetic extraction methods were used to assess Cu, Zn, Pb, Co, and Ni mobility and their potential toxicity. Analysis of variance (ANOVA) was performed to ascertain spatial and seasonal differences. Results and discussion The results showed that contrarily to Co, distribution patterns of Zn and Cu in the sediment fractions showed no spatial and seasonal variability. On the other hand, Pb and Ni distribution patterns varied highly across the bays but not seasonally. Nevertheless, repeated measurements over a long period of time should be carried out to better understand the seasonal variability of metal distribution in sediment phases. Cu, Pb, Co, and Ni were abundant in residual fraction (56.93-71.66%) in the bays. On the contrary, a very high portion of Zn (up to 70%) could be remobilized. Cu, Pb, Co, and Ni formed mainly inert complexes in sediments, while Zn formed labile complexes. Zn could pose high risk to biota, Co and Ni a medium risk, and Cu and Pb a low risk. Conclusions A combination of both sequential and kinetic methods revealed that both Zn and Pb formed labile complexes in the exchangeable and iron/manganese oxide fractions. Sequential extraction showed high Pb concentrations in the iron/manganese oxides. Thus, Zn and Pb may be highly available, which confirmed fish Pb concentrations exceeding WHO safe limits found by previous studies. Therefore, potential mobility of metals could be better assessed by the exchangeable and iron/manganese oxide fractions obtained by sequential extraction methods.

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Section: Mobility Of Zn Cu Pb Co and Nisupporting

confidence: 79%

Section: Responsible Editor: Nives Ogrincmentioning

confidence: 99%

The mobility of the trace metals copper, zinc, lead, cobalt, and nickel in tropical estuarine sediments, Ebrie Lagoon, Côte d’Ivoire

et al. 2018

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“…However, the available heavy metal thresholds based on extractable soil metal concentrations varied more than those expressed on the basis of total soil metal (Singh et al 2011). It is difficult to evaluate extractable soil thresholds due to different extractants used for different soil types (Hu et al 2011;Hamdoun et al 2015). The extraction and determination methods of Cd and Pb are more mature than those for As (Brady et al 2016).…”

Section: Discussionmentioning

confidence: 99%

Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China

Wen

Wang

et al. 2019

Journal of Integrative Agriculture

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Regional guidelines for soil heavy metals, in conjunction with specific crops, are proposed to better assess soil environmental quality. In this study, large amounts of soils with different levels of Pb/Cd/As pollution were collected in Guangdong Province, China, to carry out a pot experiment, which was closer to the actual situation and properties of the heavy metal contaminated soils. Taking the widely planted vegetable pakchoi as the research object, we analyzed the correlations between the Pb/Cd/As concentrations in pakchoi and the total or available soil Pb/Cd/As concentrations and established their optimal regression equations. And then, the total and available soil Pb/Cd/As thresholds for pakchoi were calculated according to the allowable Pb/Cd/As limits in pakchoi and were compared with the current soil assessment standards. Furthermore, a lot of paired vegetable-soil samples in field were collected and their pollution situations were assessed by both the current limit thresholds and the calculated thresholds. Obviously, it was more consistent to assess the Cd and As pollution situation of the vegetable and soil samples with the calculated soil thresholds than the current soil assessment thresholds. It further proved that it was necessary to explore the soil heavy metal thresholds for safety of vegetable in specific regions, which would be more scientific and practical to guide safety production of local agricultural products and effective utilization of soil resources.

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“…The results can be used to predict the mobility and potential bioavailability of the metals. [16][17][18][19] The advantage of the sequential extractions is the provision of detailed information about the origins, modes of occurrence, physicochemical and biological availability, mobilization and transport of trace metals. [20][21][22][23][24][25] The technique uses reagents to carry out successive leaching of specific geochemical fractions and several different protocols are proposed in the literature.…”

Section: Introductionmentioning

confidence: 99%

Arsenic and Trace Metals in Water and Sediment of the Velhas River, Southeastern Iron Quadrangle Region, Minas Gerais, Brazil

Silva¹,

Bellato²,

Neto³

et al. 2018

Quim. Nova

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River provides the public water supply for much of this region. The gold and iron mining activities in the Velhas River yield considerable amounts of suspended solids as well as metals to the hydrological system of the region. Thus, the present study sought to evaluate the concentrations of arsenic and trace metals in the waters and their distribution and mobility in sediment by BCR sequential extraction. Arsenic concentrations in the water samples were between 78.1 and 85.3 μg L-1 , which exceeded 10 μg L-1 (maximum limit permitted by Brazilian environmental regulations for water destined to human consumption, CONAMA Resolution 357/2005). The sequential extraction of the sediment showed considerable amounts of As (20%), Cd (55%), Co (56%), Cr (16%), Cu (23%), Ni (29%), Pb (47%) and Zn (71%) associated with the geochemical fractions considered potentially available for the remobilization to the aquatic environment. The presence of the elements in these fractions indicated high ecotoxicological risk and potential harm to the health of the local population.

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Comparison of three procedures (single, sequential and kinetic extractions) for mobility assessment of Cu, Pb and Zn in harbour sediments

Cited by 18 publications

References 51 publications

The mobility of the trace metals copper, zinc, lead, cobalt, and nickel in tropical estuarine sediments, Ebrie Lagoon, Côte d’Ivoire

The mobility of the trace metals copper, zinc, lead, cobalt, and nickel in tropical estuarine sediments, Ebrie Lagoon, Côte d’Ivoire

Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China

Arsenic and Trace Metals in Water and Sediment of the Velhas River, Southeastern Iron Quadrangle Region, Minas Gerais, Brazil

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