Sequential Selective Extraction Procedures for the Study of Heavy Metals in Soils, Sediments, and Waste Materials—a Critical Review

Hass, Amir; Fine, Pinchas

doi:10.1080/10643380802377992

Cited by 168 publications

(74 citation statements)

References 138 publications

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“…The metal extracted at the first step is regarded as exchangeable, water and acidsoluble, at the second step as Mn/Fe oxides-bound, and at the third step as oxidisable organic matter-and sulphides-bound, and the residual fraction is regarded as metal in the crystal lattice of minerals (Hass and Fine 2010).…”

Section: Speciation Of Heavy Metals In Soil and In Particle Fractionsmentioning

confidence: 99%

Dynamics of plant metal uptake and metal changes in whole soil and soil particle fractions during repeated phytoextraction

Luo

et al. 2013

Plant Soil

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Aims Phytoextration of metal polluted soils using hyperaccumulators is a promising technology but requires long term successive cropping. This study investigated the dynamics of plant metal uptake and changes in soil metals over a long remediation time. Methods A soil slightly polluted with metals (S1) was mixed with highly polluted soil (S4) to give two intermediate pollution levels (S2, S3). The four resulting soils were repeatedly phyto-extracted using nine successive crops of Cd/Zn-hyperaccumulator Sedum plumbizincicola over a period of 4 years.Results Shoot Cd concentration decreased with harvest time in all soils but shoot Zn declined in S1 only. Similar shoot Zn concentrations were found in S2, S3 and S4 although these soils differed markedly in metal availability, and their available metals decreased during phytoextraction. A possible explanation is that plant active acquisition ability served to maintain plant metal uptake. Plant uptake resulted in the largest decrease in the acid-soluble metal fraction followed by reducible metals. Oxidisable and residual fractions were less available to plants. The coarse soil particle fractions made the major contribution to metal decline overall than the fine fractions. Conclusion Sedum plumbizincicola maintained long term metal uptake and the coarse soil particles played the most important role in phytoextraction.

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Section: Speciation Of Heavy Metals In Soil and In Particle Fractionsmentioning

confidence: 99%

Dynamics of plant metal uptake and metal changes in whole soil and soil particle fractions during repeated phytoextraction

Luo

et al. 2013

Plant Soil

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“…Sequential selective extraction (SSE) methods have been proposed to assess speciation of sorbed species between different soil fractions (Tessier et al, 1979;McGrath and Cegarra, 1992;Ma and Uren, 1998;Hass and Fine, 2010). The SSE methods are based on the exposure of a sample to a sequence of wet chemistry treatments.…”

Section: Introductionmentioning

confidence: 99%

Time evolution of Pb(II) speciation in Pampa soil fractions

Ferreyroa

Montenegro

Tudino

et al. 2014

Chemical Speciation & Bioavailability

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Soil pollution by heavy metals, particularly lead, is an important environmental concern; the bioavailability of such pollutants is strongly dependent on their chemical form. Here, the speciation of Pb(II) in soil fractions as a function of time shortly after its incorporation is studied, using a selective sequential extraction method. The sample came from an Argentinean Pampas region and was extensively characterised, including Rietveld analysis of the silt+clay fraction XRD pattern to find the major mineral components. Experiments were run twice, once in the winter and once in the summer. The results show different speciation time profiles in both cases, showing faster changes in winter due to the higher water content. The summer experiment corresponds to an earlier stage in the speciation profile evolution compared with winter. The soluble/ exchangeable fraction decreases with time in summer but shows a lower and constant value in the winter. A high proportion is found to be adsorbed onto the stable (aluminosilicates+quartz) mineral fraction. The results strongly suggest that, even at a short time following soil pollution with Pb, a high proportion is adsorbed onto the mineral fraction, with only a low fraction being bioavailable. The most stable (mineral incorporated) form is observed to increase with time. Soil water content appears to be more important than temperature in determining the differences between the two.

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“…The source and channel bed sediment samples were digested with aqua regia following the ISO 11466 protocol (DIN ISO 11466, 1997), which is a commonly used method to determine amounts of elements in soils and sediment. These samples also underwent sequential extraction following the modified BCR (European Community Bureau of Reference) 3-step method, thereby enabling a comparison of the total amount of metal extracted with that obtained by aqua regia digestion (Rauret et al, 1999) resulting in the following geochemical phases: (1) acid-soluble, exchangeable and bound to carbonates; (2) reducible, bound to iron and manganese oxides; (3) oxidizable, bound to organic and sulfide compounds; and (4) residual (Byrne et al, 2010;Hass and Fine, 2010). Pseudototal concentrations (mg kg À1 ) in the extracts were then measured by inductively coupled plasma optical emission spectrometry (ICPÀOES) at Utrecht University, The Netherlands.…”

Section: Sampling and Laboratory Methodsmentioning

confidence: 99%

Effects of a small-scale, abandoned gold mine on the geochemistry of fine stream-bed and floodplain sediments in the Horsefly River watershed, British Columbia, Canada

et al. 2014

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Mining is known to be a major source of metal contamination for fluvial systems worldwide. Monitoring and understanding the effects on downstream water and sediment quality is essential for its management and to mitigate against detrimental environmental impacts. This study aimed to examine the effects of the small-scale, abandoned, hydraulic Black Creek gold mine on the geochemical content of fine (<63 mm) stream bed and floodplain sediment in the Horsefly watershed (British Columbia, Canada), which is a part of the Quesnel River basin. Concentrations of As, Cd, Se and Zn were determined by aqua regia digestion and the modified BCR (European Community Bureau of Reference) sequential extraction procedure followed by inductively coupled plasma-optical emission spectroscopy or inductively coupled plasma-mass spectrometry. Age-depth models for the floodplain cores were constructed using excess Pb-210 and Cs-137 activity concentration profiles. The results show that the mine caused local As contamination of the Horsefly River floodplain sediment during the first years of operation, but at present the contamination is mainly contained in the Black Creek. Present-day and recent concentrations of Cd, Se and Zn in the Horsefly River are elevated and this is probably derived from other upstream mining activities. The spatial and temporal changes in heavymetal concentrations suggest a slight, but not particularly widespread, mining effect on the finesediment geochemistry in the Horsefly River system.

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Sequential Selective Extraction Procedures for the Study of Heavy Metals in Soils, Sediments, and Waste Materials—a Critical Review

Cited by 168 publications

References 138 publications

Dynamics of plant metal uptake and metal changes in whole soil and soil particle fractions during repeated phytoextraction

Dynamics of plant metal uptake and metal changes in whole soil and soil particle fractions during repeated phytoextraction

Time evolution of Pb(II) speciation in Pampa soil fractions

Effects of a small-scale, abandoned gold mine on the geochemistry of fine stream-bed and floodplain sediments in the Horsefly River watershed, British Columbia, Canada

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