Evaluation of arsenic sorption and mobility in stream sediment and hot spring deposit in three drainages of the Tibetan Plateau

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• 作者：Yinfeng Zhang^a ; ^b ; Shehong Li^a ; ^{lishehong@vip.gyig.ac.cn} ; Lirong Zheng^c ; Jingan Chen^a ; Yan Zheng^d ; ^e ; ^{yan.zheng@qc.cuny.edu} ; ^{yzheng@ldeo.columbia.edu}
• 关键词：X-ray Absorption Spectroscopy ; Arsenic ; Hot spring ; Salween ; Yangtze ; Mekong
• 刊名：Applied Geochemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：77
• 期：Complete
• 页码：89-101
• 全文大小：1489 K
• 卷排序：77

文摘

Mean [As] in sandy sediment in three rivers originating from Tibet is 17 mg/kg. As sorbed to Fe oxyhydroxides in river sediments ranged 1–4 mg/kg. The pool of sorbed As is immobile in the rivers and is deposited downstream. Hot spring contributes to geogenic As source for enrichment in groundwater.