High levels of antimony in dust from e-waste recycling in southeastern China

被引：48
作者：
Bi, Xiangyang [1 ,2 ]
Li, Zhonggen [3 ]
Zhuang, Xiaochun [4 ]
Han, Zhixuan [1 ,2 ]
Yang, Wenlin [1 ]
机构：
[1] China Univ Geosci, Fac Earth Sci, Wuhan 430074, Peoples R China
[2] China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
[3] Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550002, Peoples R China
[4] China Univ Geosci, Fac Mat Sci & Chem Engn, Wuhan 430074, Peoples R China
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 2011年 / 409卷 / 23期
关键词：
Antimony; Arsenic; Dust; E-waste; Sb/As ratio; CONTAMINATION; POLLUTION; ELEMENTS; MINE; AREA;
D O I：
10.1016/j.scitotenv.2011.08.009
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Environmental contamination due to uncontrolled e-waste recycling is an emerging global issue. Antimony (Sb) is a toxic element used in semiconductor components and flame retardants for circuit board within electronic equipment. When e-waste is recycled, Sb is released and contaminates the surrounding environment; however, few studies have characterized the extent of this problem. In this study, we investigated Sb and arsenic (As) distributions in indoor dust from 13 e-waste recycling villages in Guiyu, Guangdong Province, southeastern China. Results revealed significantly elevated concentrations of Sb (6.1-232 mg/kg) in dust within all villages, which were 3.9-147 times higher than those from the non e-waste sites, indicating e-waste recycling was an important source of Sb pollution. On the contrary. As concentrations (5.4-17.7 mg/kg) in e-waste dusts were similar to reference values from the control sites. Therefore, dusts emitted from e-waste recycling may be characterized by high Sb/As ratios, which may help identify the contamination due to the e-waste recycling activities. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：5126 / 5128
页数：3
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