Characterization of subsurface sediments and its implication on arsenic mobilization in Gangetic plain

S. Kar, J. S. Jean, C. C. Liu, J. P. Maity, B. Nath, J. F. Lee

研究成果: Conference contribution

摘要

Geochemical analysis of core sediments from Barasat, India, a part of the Gangetic plain was conducted. High arsenic content was observed in shallow depth (<70 m). Sequential extraction study revealed association of arsenic with different solid phases in sediment. XRD analysis demonstrated that iron oxides/oxyhydroxides with residual magnetite and chlorite, illite and iron oxide/oxyhydroxide-coated quartz, feldspar are the dominant carriers of arsenic as evidenced by EDS spectra. XANES and EXAFS analysis indicated the dominance of As(III) and Fe(III) implying iron oxides/oxyhydroxides as the main carrier of As in the sediments.

原文English
主出版物標題Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress
主出版物子標題Arsenic in the Environment
發行者Taylor and Francis - Balkema
頁面93-95
頁數3
ISBN(列印)9780415637633
DOIs
出版狀態Published - 2012
事件4th International Congress on Arsenic in the Environment, As 2012 - Cairns, QLD, Australia
持續時間: 2012 七月 222012 七月 27

出版系列

名字Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment

Other

Other4th International Congress on Arsenic in the Environment, As 2012
國家/地區Australia
城市Cairns, QLD
期間12-07-2212-07-27

All Science Journal Classification (ASJC) codes

  • 環境化學
  • 污染

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