Lead accumulation and association with Fe on Typha latifolia root from an urban brownfield site

Huan Feng, Yu Qian, Frank J. Gallagher, Meiyin Wu, Weiguo Zhang, Lizhong Yu, Qingzhi Zhu, Kewei Zhang, Chang Jun Liu, Ryan Tappero

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Synchrotron X-ray microfluorescence and X-ray absorption near-edge microstructure spectroscopy techniques were applied to Typha latifolia (cattail) root sections and rhizosphere soils collected from a brownfield site in New Jersey to investigate lead (Pb) accumulation in T. latifolia roots and the role of iron (Fe) plaque in controlling Pb uptake. We found that Pb and Fe spatial distribution patterns in the root tissues are similar with both metals present at high concentrations mainly in the epidermis and at low concentrations in the vascular tissue (xylem and phloem), and the major Pb and Fe species in T. latifolia root are Pb(II) and Fe(III) regardless of concentration levels. The sequestration of Pb by T. latifolia roots suggests a potential low-cost remediation method (phytostabilization) to manage Pb-contaminated sediments for brownfield remediation while performing wetland rehabilitation.

Original languageEnglish
Pages (from-to)3743-3750
Number of pages8
JournalEnvironmental Science and Pollution Research
Volume20
Issue number6
DOIs
StatePublished - 1 Jun 2013

Keywords

  • Brownfield
  • Iron plaque
  • Lead contamination
  • Synchrotron technique
  • Typha latifolia
  • Wetland plant

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