Arsenic, chromium, molybdenum, and selenium: Geochemical fractions and potential mobilization in riverine soil profiles originating from Germany and Egypt

Sabry M. Shaheen, Eilhann E. Kwon, Jayanta K. Biswas, Filip M.G. Tack, Yong Sik Ok, Jörg Rinklebe

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

The fractionation and potential mobilization of As, Cr, Mo, and Se in four floodplain soil profiles collected along the Nile (Egypt) and Wupper (Germany) Rivers were assessed using the BCR sequential extraction procedure. The concentrations of total and the geochemical fractions (acid soluble (F1), reducible (F2), oxidizable (F3), and residual (F4) fraction) of the elements were determined. The Wupper soils had the highest total concentrations (mg kg−1) of As (378) and Cr (2,797) while the Nile soils contained the highest total Mo (12) and Se (42). The residual fraction of As, Cr, Mo, and Se was dominant in the Nile soils suggesting the geogenic source of the elements in these soils. The residual fraction of As and Mo and the oxidizable fraction of Cr and Se were dominant in the Wupper soils. Among the non-residual fractions (potential mobile fractions; PMF = ∑F1−F3), the oxidizable fraction was dominant for Cr, Mo, and Se in the Nile soils and for Mo in the Wupper soils, while the reducible fraction was dominant for As in both soils. The PMF of As, Cr, and Se was higher in the Wupper than in the Nile soils which might reflect the anthropogenic sources of these elements in the Wupper soils, while the opposite was the case for the PMF of Mo. The high PMF of Se (87%), Cr (87%), and As (21%) in the Wupper soils suggested that a release of these toxic elements may happen which increase the potential environmental risks in the anthropogenically polluted soils.

Original languageEnglish
Pages (from-to)553-563
Number of pages11
JournalChemosphere
Volume180
DOIs
Publication statusPublished - 2017 Jan 1
Externally publishedYes

Fingerprint

Molybdenum
Arsenic
Chromium
Selenium
molybdenum
selenium
mobilization
soil profile
chromium
arsenic
Soils
soil
geogenic source
anthropogenic source
Poisons
environmental risk
Fractionation
floodplain
fractionation

Keywords

  • Floodplain soils
  • Risk assessment
  • Sequential extraction
  • Soil origin
  • Toxic elements

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemistry(all)

Cite this

Arsenic, chromium, molybdenum, and selenium : Geochemical fractions and potential mobilization in riverine soil profiles originating from Germany and Egypt. / Shaheen, Sabry M.; Kwon, Eilhann E.; Biswas, Jayanta K.; Tack, Filip M.G.; Ok, Yong Sik; Rinklebe, Jörg.

In: Chemosphere, Vol. 180, 01.01.2017, p. 553-563.

Research output: Contribution to journalArticle

Shaheen, Sabry M. ; Kwon, Eilhann E. ; Biswas, Jayanta K. ; Tack, Filip M.G. ; Ok, Yong Sik ; Rinklebe, Jörg. / Arsenic, chromium, molybdenum, and selenium : Geochemical fractions and potential mobilization in riverine soil profiles originating from Germany and Egypt. In: Chemosphere. 2017 ; Vol. 180. pp. 553-563.
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