On the distribution and speciation of arsenic in the soil-plant-system of a rice field in West-Bengal, India: A μ-synchrotron techniques based case study

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• 作者：U. Kramar^a ; ^{utz.kramar@kit.edu} ; S. Norra^a ; Z. Berner^a ; M. Kiczka^a ; D. Chandrasekharam^b
• 关键词：Arsenic ; West Bengal ; Soil plant system ; Synchrotron ; As speciation
• 刊名：Applied Geochemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：77
• 期：Complete
• 页码：4-14
• 全文大小：4138 K
• 卷排序：77

文摘

Rice soils irrigated with As-rich water were analysed by μ-synchrotron methods Arsenic from irrigation is mainly absorbed on Fe-hydroxides in root coatings and on disperse ones. Root coatings are effective As-barriers, but As was also detected inside the root. Root As(V) is partly reduced to As(III) and transported to the edible grain. In the seed, some As is found inside the coating, but most within the embryo.