Speciation of As in the blackfoot disease endemic area

H. C. Wang, H. Paul Wang, C. Y. Peng, S. H. Liu, Y. W. Yang

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12 Citations (Scopus)


Speciation of arsenic (As) in well water and contaminated soil in the blackfoot disease endemic area has been studied by extended X-ray absorption fine structural (EXAFS) spectroscopy in the present work. Experimentally, we found that arsenic in the well water possessed an As-O bond distance of 1.72 Å with a coordination number (CN) of 4.3. In the blackfoot disease area, arsenic with a high oxidation state (As(V)) was also observed in the contaminated soil. In the early stage (after 90 minutes) of the electrokinetic remediation (EKR) of the contaminated soil, the in-situ EXAFS data indicated that the CN of As-O (1st shell) decreased slightly, that may be due to the perturbation of the incompact As atoms in the outer shells by EKR.

Original languageEnglish
Pages (from-to)961-962
Number of pages2
JournalJournal of Synchrotron Radiation
Issue number2
Publication statusPublished - 2001 Mar 1

All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Instrumentation


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