Changes in Cd and Cr fluxes during the bioremediation of phenanthrene

M. A. Amezcua-Allieri, J. R. Lead, R. Rodríguez-Vázquez

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Different types of contaminants such as polycyclic aromatic hydrocarbons (PAHs) and metals coexist in different chemical forms in soil. Although bioremediation of organics has been widely studied, little attention has been paid to changes in metal behaviour during the bioremediation process. In this study, the diffusion gradient in thin-film (DGT) technique was used to assess changes in potentially bioavailable Cd and Cr fluxes in soil during the bioremediation of phenanthrene. Fluxes of Cd were low (<0.2 pg cm -2 s-1) and increased to 0.4-0.9 pg cm-2 s -1, while Cr(III) fluxes showed an approximately tenfold increase. Results showed that there was increased mobilization of metals associated with the fungal reduction of phenanthrene concentrations by Penicillium frequentans.

Original languageEnglish
Pages (from-to)337-339
Number of pages3
JournalSoil Use and Management
Volume21
Issue number3
DOIs
StatePublished - Sep 2005
Externally publishedYes

Keywords

  • Bioavailability
  • Cadmium
  • Chromium
  • DGT
  • Fluxes

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