Characteristics of potential arsenic leaching in paddy field soils

被引：0
|
作者：
Azam, M. Shafiul [1 ]
Shafiquzzaman, M. [2 ]
机构：
[1] Int Univ Business Agr & Technol, Dhaka, Bangladesh
[2] Hiroshima Univ, Hiroshima, Japan
来源：
UNDERSTANDING THE GEOLOGICAL AND MEDICAL INTERFACE OF ARSENIC, AS 2012 | 2012年
关键词：
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this study a sequential extraction method by 0.1N hydrochloric acid (HCl) and 0.1N sodium hydroxide (NaOH) was used to measure and characterize the potential arsenic leaching in the actual paddy field soils of Bangladesh. Results indicated that about 22-57% of the total arsenic in the samples were 0.1N NaOH extractable arsenic which might be strongly bound with amorphous iron hydroxides. Comparing the extraction results with pH leaching test performed separately it was observed that leached arsenic in low pH was from the 0.1N HCl extractable arsenic fractions which might be sorbed weakly on the soil surface.
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页码：130 / 131
页数：2
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