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

页码：21 / 29

页数：9

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