Research Article

Environmental Science and Pollution Research

, Volume 20, Issue 6, pp 3743-3750

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

  • Huan FengAffiliated withDepartment of Earth and Environmental Studies, Montclair State University Email author 
  • , Yu QianAffiliated withDepartment of Earth and Environmental Studies, Montclair State University
  • , Frank J. GallagherAffiliated withUrban Forestry Program, Department of Ecology, Evolution and Natural Resources, Rutgers, The State University of New Jersey
  • , Meiyin WuAffiliated withDepartment of Biology and Microbiology, Montclair State University
  • , Weiguo ZhangAffiliated withState Key Laboratory of Estuarine and Coastal Research, East China Normal University
  • , Lizhong YuAffiliated withState Key Laboratory of Estuarine and Coastal Research, East China Normal University
  • , Qingzhi ZhuAffiliated withSchool of Marine and Atmospheric Science, State University of New York
  • , Kewei ZhangAffiliated withDepartment of Biology, Brookhaven National Laboratory
  • , Chang-Jun LiuAffiliated withDepartment of Biology, Brookhaven National Laboratory
    • , Ryan TapperoAffiliated withPhoton Sciences Directorate, Brookhaven National Laboratory

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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.

Keywords

Brownfield Iron plaque Lead contamination Synchrotron technique Wetland plant Typha latifolia