A Critical Evaluation of Single Extractions from the SMT Program to Determine Trace Element Mobility in Sediments

Cappuyns, Valérie

doi:10.1155/2012/672914

Cited by 13 publications

(14 citation statements)

References 69 publications

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“…Cr occurs in soils mainly (> 80% of total content) in the immobile residual fraction and is hardly mobile, being thus not easily available to plants ( Kabata‐Pendias , 2011). The low EDTA‐extractability of Cr is confirmed in other studies ( Megremi , 2009; Cappuyns , 2012). Megremi (2009) reports only 0.1% of Cr was extracted by EDTA in polluted soils.…”

Section: Resultssupporting

confidence: 79%

Plant uptake of metals, transfer factors and prediction model for two contaminated regions of Kosovo

Zogaj

Düring

2016

J. Plant Nutr. Soil Sci.

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The bioavailability and plant uptake of heavy metals (HM), as well as finding the most reliable methods for the prediction of availability, continues to be one of the most crucial problems in agricultural and environmental studies. In agricultural soils from two regions in Kosovo, known for its metal pollution, we collected 60 soil and plant samples (wheat, corn, potatoes, and grass). Heavy metals were extracted from soil with aqua regia (pseudototal concentration), NH4OAc‐EDTA (potential bioavailable), and NH4NO3 (mobile fraction), plant samples were digested with HNO3/H2O2 (microwave assisted extraction). The pseudo total content of Cd, Pb, and Zn showed high value in Mitrovice (mean: Cd–2.92, Pb–570.15, and Zn–522.86 mg kg−1), whereas in Drenas region Ni and Cr showed high value with a mean 258.54 and 203.22 mg kg−1. Also, the potential bioavailability and mobile form of these metals were increased in Mitrovice (mean: Cd–1.59, Pb–217.05, Zn–522.86 mg kg−1, respectively Cd–0.17, Pb–0.64, and Zn–15.45 mg kg−1), compared to Drenas. Cd and Pb were elevated in potato tubers (mean Cd–0.48 and Pb–0.85 mg kg−1). The TF was higher for micronutrients (Zn and Cu) than for non‐essential metals (Cd and Pb). Multiple regression analysis showed a good model for prediction of Cd, Pb and Zn content in plant with significance 99.9%, whereas this model was not significant for Cu, Cr, and Ni. Soil pH played a significant role in the content of Cd and Zn in wheat and potato plants. Clay content also showed significance in Cd concentration in wheat and potato plants, while carbon content was significant for Cd in grass plants, as well as for Zn in wheat and grass plants.

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Section: Resultssupporting

confidence: 79%

Plant uptake of metals, transfer factors and prediction model for two contaminated regions of Kosovo

Zogaj

Düring

2016

J. Plant Nutr. Soil Sci.

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“…Metals are bound in soils in various oxidation states [11][12][13][14][15][16]. The toxicity of such metals differs with oxidation states.…”

Section: +mentioning

confidence: 99%

“…An increase of DOC concentration increases the metal complexation with organic matter. Consequently, the proportion of the concentrations of metals in the liquid phase increases the mobility of the metals [16].…”

Section: +mentioning

confidence: 99%

“…Much research has been conducted on the speciation of metals in soils in some parts of the world [10][11][12][13][14][15][16][17][18][19][20][21][22][23]. Heavy metal speciation and its bioavailability and bioaccessibility in Nigerian soils have been studied [15,[24][25][26].…”

Section: +mentioning

confidence: 99%

“…Under reducing and acidic conditions, oxides can be mobilized and release the bound metals into soil solution. The organic fraction is stable to some extent but can also be oxidized by the decomposition of organic matter, which releases the bound metals [11][12][13][14][15][16][17][18][19][20].…”

Section: Potential Mobility Of Metals In Soilsmentioning

confidence: 99%

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An Assessment of the Bioavailability of Metals in Soils on Oil Palm Plantations in Nigeria

Olafisoye¹,

Oguntibeju²,

Osibote³

2016

Pol. J. Environ. Stud.

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We investigated the speciation, bioavailability, and mobility of metals in soils from selected states on oil palm plantations in southwest Nigeria. Soils were analysed for total metal content and speciation on all sampling locations. Metal concentrations were compared against pH, electrical conductivity (EC) and soil organic matter (SOM), which were high at all the sampling locations. The speciation results deduced that the concentrations of the different fractions vary widely at each sampling location. Cd is mostly abundant in the exchangeable phase in all the samples analysed in the various locations. Ni in the Iresa-apa plantation (29.9%) and Co in the Acharu plantation (29.9%) also showed appreciable concentrations in the Fe/Mn oxide fractions. The concentrations of Pb and Cu were highest in the organic fraction. Metals in the organic phase are more released into soil solution when compared to the residual phase fractions. Chromium and Zinc were mostly associated with the residual phase when the values of the residual phase were compared with other geochemical fractions. The plantations under study, which recorded the highest concentrations of Cr and Zn in the residual fractions, were 87.9% (Okitipupa), 86.3% (Ikire), 82.7% (Apoje), 90.3% (Onishere), 89.7% (Benin City), and 85.6% (Nsukka).The results of the sequential extraction show that mostly Cr and Zn were strongly bound to the residual/inert phase in all the soils under investigation. The potential mobility of the metals with high fractions in the residual phase is as follows: Cr (74.8%), Zn (74.0%), Pb (73%), Fe (69.5%), Ni (67.0%), Cu (63.8%), Mn (30.5%), Co (30.7%), and Cd (25.9%). These values were high when compared to the values of other metals in the other mobile and potentially mobile fractions.

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Sediment matrix characterization as a tool for evaluating the environmental impact of heavy metals in metal mining, smelting, and ore processing areas

Ružičková

Remeteiová

Mičková

et al. 2018

Environ Monit Assess

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In this work, the matrix characterization (mineralogy, total and local chemical composition, and total organic (TOC) and inorganic carbon (TIC) contents) of different types of sediments from mining- and metallurgy-influenced areas and the assessment of the impact of the matrix on the association of potentially hazardous metals with the mineral phases of these samples, which affect their mobility in the environment, are presented. For these purposes, sediment samples with different origins and from different locations in the environment were analyzed. Anthropogenic sediments from metal-rich post-flotation tailings (Lintich, Slovakia) represent waste from ore processing, natural river sediments from the Hornád River (Košice, Slovakia) represent areas influenced predominantly by the metallurgical industry, and lake sediments from a water reservoir Ružín (inflow from the Hornád and Hnilec Rivers, Slovakia) represent the impact of the metallurgical and/or mining industries. The total metal contents were determined by X-ray fluorescence (XRF) analysis, the local chemical and morphological microanalysis by scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS), and the TOC and TIC contents by infrared (IR) spectrometry. The mobility/bioavailability of Cu, Pb, and Zn in/from sediments at the studied areas was assessed by ethylenediaminetetraacetic acid (EDTA) and acetic acid (AA) extraction and is discussed in the context of the matrix composition. The contents of selected potentially hazardous elements in the extracts were determined by the high-resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS).

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A Critical Evaluation of Single Extractions from the SMT Program to Determine Trace Element Mobility in Sediments

Cited by 13 publications

References 69 publications

Plant uptake of metals, transfer factors and prediction model for two contaminated regions of Kosovo

Plant uptake of metals, transfer factors and prediction model for two contaminated regions of Kosovo

An Assessment of the Bioavailability of Metals in Soils on Oil Palm Plantations in Nigeria

Sediment matrix characterization as a tool for evaluating the environmental impact of heavy metals in metal mining, smelting, and ore processing areas

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