Characterization and mobility of geogenic chromium in soils and river bed sediments of Asopos basin

Maria A. Lilli, Daniel Moraetis, Nikolaos P. Nikolaidis, George P. Karatzas, Nicolas Kalogerakis

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A field and laboratory study was conducted to assess the origin and mobility of CrVI in Asopos basin in Greece. Sampling was designed in such way as to capture the spatial variability of chromium occurring in sediments and soils in different lithological units in the area. Physicochemical and geochemical characterization of surface agricultural soils obtained from river terraces and river bed sediments was conducted in order to determine the natural background of chromium. Lithologies with strong calcareous, siliceous and ultramafic components were identified using principal component analysis. Laboratory mobility studies quantified the rates of chromium sorption and release from soils and their capacity to adsorb chromium. Heavy metal analysis and local geology study support the hypothesis that the main source of chromium is of geogenic origin. Chromium distribution in Asopos river bed was influenced from the eroded products derived from extensive areas with ultramafic rocks the last 5. Ma. The mobility studies showed that leaching process was very fast and sorption capacity was significant and capable to retain chromium in case of waste release in the river. Finally the mobility of chromium release is limited due to existing attenuation capacity controlled by ferric oxides coatings on the soil and sediments.

Original languageEnglish
Pages (from-to)12-19
Number of pages8
JournalJournal of Hazardous Materials
Volume281
DOIs
Publication statusPublished - Jan 8 2015

Fingerprint

Chromium
river bed
Rivers
Catchments
chromium
Sediments
Soil
Soils
basin
sediment
soil
Sorption
sorption
Geology
Metal analysis
river terrace
Lithology
Greece
ultramafic rock
Heavy Metals

Keywords

  • Geogenic chromium
  • Hexavalent chromium
  • Mobility
  • Soil/sediment characterization

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Characterization and mobility of geogenic chromium in soils and river bed sediments of Asopos basin. / Lilli, Maria A.; Moraetis, Daniel; Nikolaidis, Nikolaos P.; Karatzas, George P.; Kalogerakis, Nicolas.

In: Journal of Hazardous Materials, Vol. 281, 08.01.2015, p. 12-19.

Research output: Contribution to journalArticle

Lilli, Maria A. ; Moraetis, Daniel ; Nikolaidis, Nikolaos P. ; Karatzas, George P. ; Kalogerakis, Nicolas. / Characterization and mobility of geogenic chromium in soils and river bed sediments of Asopos basin. In: Journal of Hazardous Materials. 2015 ; Vol. 281. pp. 12-19.
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