Solid speciation and mobility of potentially toxic elements from natural and contaminated soils: A combined approach

Autor: Jacek Puziewicz, Jakub Kierczak, Edeltrauda Helios-Rybicka, Hubert Bril, Urszula Aleksander-Kwaterczak, Catherine Neel
Přispěvatelé: Groupement de Recherche Eau, Sol, Environnement (GRESE), Université de Limoges (UNILIM)
Rok vydání: 2008
Předmět:
Chromium
Environmental Engineering
Inceptisol
[SDE.MCG]Environmental Sciences/Global Changes
Health
Toxicology and Mutagenesis
Industrial Waste
Mineralogy
010501 environmental sciences
010502 geochemistry & geophysics
MESH: Zinc
01 natural sciences
MESH: Chromium
chemistry.chemical_compound
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry
Nickel
Metals
Heavy
MESH: Nickel
Soil Pollutants
Environmental Chemistry
MESH: Industrial Waste
0105 earth and related environmental sciences
MESH: Soil Pollutants
Cambisol
Extraction (chemistry)
Public Health
Environmental and Occupational Health
Trace element
[CHIM.MATE]Chemical Sciences/Material chemistry
General Medicine
General Chemistry
MESH: Metals
Heavy
Pollution
Soil contamination
Zinc
chemistry
Serpentine soil
Environmental chemistry
Soil water
MESH: Environmental Monitoring
[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
[SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy
Environmental Monitoring
EMPA
Zdroj: Chemosphere
Chemosphere, Elsevier, 2008, 73 (5), pp.776-84. ⟨10.1016/j.chemosphere.2008.06.015⟩
ISSN: 0045-6535
Popis: The study area (Szklary Massif, SW Poland) comprises three sites of different soil provenance: (1) natural serpentine Cambisol, (2) anthroposol situated on waste dump and (3) cultivated Inceptisol developed on glacial tills next to the dump. Potentially toxic elements (PTE) have either lithogenic or anthropogenic origins in these sites. The chemical partitioning of Co, Cr, Cu, Ni, Pb and Zn among solid forms was determined by sequential extractions coupled with direct mineral identifications (SEM, electron microprobe analysis – EMPA, and XRD). Examination of solid residues after several extraction steps was conducted in order to discuss the indirect speciation obtained by the extraction method. Total concentrations of PTE having anthropogenic origin greatly exceed those of lithogenic origin. Mobility of studied PTE is variable in the different environments except for Cr which is always mostly found in residual fractions of extractions. Cu and Pb are more mobile than Cr and Co in all soils. Zn is more stable (Cu > Pb > Ni > Co > Zn >> Cr) in the serpentine soil and cultivated epipedon (Pb > Cu > Zn > Ni > Co >> Cr) than in the anthroposol (Zn > Cu ⩾ Pb > Ni > Co >> Cr). PTE of lithogenic origin are generally less mobile than those from anthropogenic origin except Ni which is more mobile in the serpentine soil. Nonetheless, mineral forms of metals better determine their mobility than metal origin. Identification by direct methods of the PTE mineral form was not possible for metals present at low concentrations (Cu, Pb). However, direct mineralogical examinations of the solid residues of several extractions steps improved the assessment of the PTE solid speciation and mobility, particularly for Cr, Ni and Zn.
Databáze: OpenAIRE
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