The Distribution of Arsenic Concentration around Gejiu Tin Mine, Yunnan, China

被引：2
|
作者：
Tomiyasu, Takashi [1 ,2 ]
Hirose, Masato [1 ]
Kodamatani, Hitoshi [1 ]
Anazawa, Katsuro [1 ]
Kanzaki, Ryo [1 ]
Kono, Yuriko [2 ]
Shiga, Yoshihide [3 ]
机构：
[1] Kagoshima Univ, Grad Sch Sci & Engn, Kagoshima 8900065, Japan
[2] Kagoshima Univ, Environm & Safety Sect, Kagoshima 8900065, Japan
[3] Kagoshima Univ, Fac Law Econ & Humanities, Kagoshima 8900065, Japan
来源：
BUNSEKI KAGAKU | 2012年 / 61卷 / 01期
关键词：
arsenic; Gejiu tin mine; soil; tailing; CIA; GROUND-WATER; SURFACE; SAMPLES;
D O I：
10.2116/bunsekikagaku.61.21
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In order to estimate the dispersion of arsenic released thorough mining activity, a total of 39 soil samples were taken around the Gejiu tin mine, Yunnan, China. The highest total arsenic concentration, 1.1 x 10(4) mg kg(-1), was observed in the tailing. Although the concentration in soil samples was slightly lower than that in the tailings, higher than 5.1 x 10(2) mg kg(-1) of arsenic was still observed. A linear relation was observed between SiO2 and Fe2O3, which can be used for estimating the dispersion of the tailings. A trend was observed that the higher the chemical index of alteration, the lower the arsenic concentration, which suggests the elution of arsenic from tailings through weathering.
引用
收藏
页码：21 / 29
页数：9
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