Contamination, chemical speciation and vertical distribution of heavy metals in soils of an old and large industrial zone in Northeast China

被引:168
作者
Li, Fayun [1 ]
Fan, Zhiping [2 ]
Xiao, Pengfei [3 ]
Oh, Kokyo [4 ]
Ma, Xiping [1 ]
Hou, Wei [1 ]
机构
[1] Liaoning Univ, Sch Environm Sci, Shenyang 110036, Peoples R China
[2] Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China
[3] NE Forestry Univ, Coll Forestry, Harbin 150040, Peoples R China
[4] Ctr Environm Sci Saitama, Kisai, Saitama 3470115, Japan
来源
ENVIRONMENTAL GEOLOGY | 2009年 / 57卷 / 08期
基金
美国国家科学基金会;
关键词
Heavy metals; Soil contamination; Chemical speciation; Industrial area; China; URBAN SOILS; SURFACE SOILS; ACCUMULATION; ZN; CU;
D O I
10.1007/s00254-008-1469-8
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Heavy metal pollution of soils has become a major concern in China as a consequence of rapid urbanization and industrialization in recent years. However, the evaluation on soil heavy metal pollution in Shenyang, the largest heavy industrial base city in China, has not yet been conducted. In this study, accumulation, chemical speciation, and vertical distribution Cu, Zn, Pb and Cd in soils were studied and pollution condition was assessed in Tiexi Industrial District of Shenyang, the largest and oldest industrial zone in Northeastern China. The results showed that in topsoil, the average concentration of total Cu, Zn, Pb, and Cd was 209.06, 599.92, 470.19 and 8.59 mg kg(-1), respectively, much higher than the national threshold limit. The values of pollution index and integrated pollution index showed that the pollution level was Cd > Cu > Zn > Pb, and Cd, Cu and Zn belong to heavy pollution level. The residual, Fe and Mn oxide-bound, and organic-bound species accounted for about 90%, while carbonate-bound and exchangeable species accounted for about 10%. This study indicates that the soils in the industrial zone were widely and extremely polluted by multi-heavy metals as a result of long-term industrial activities.
引用
收藏
页码:1815 / 1823
页数:9
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