Heavy Metal Pollution History Inferred from East Taihu Lake
详细信息
- 责任者：Yao Shuchun (State Key Lab. of Lake Science and Environment ; Nanjing Institute of Geography and Limnology ; Chinese Academy of Sciences ; Nanjing 210008 ; China) ; Xue Bin
- 刊名：Acta Sedimentologica Sinica
- 出版年：2012
- 卷期：30(1)
- 关键词：重金属 ; heavy metals ; 环境污染 ; environmental pollution ; 太湖 ; Taihu Lake
- 页码：p.158-165
- 图表：6 illus., 47 refs.
- 分类号：1800
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
In this paper, Fe element as a proxy of grain size was selected for normalization and calculation of metal enrichment factor (EF) and anthropogenic heavy metal fluxes.The results showed that,except the cores surface sediment,Pb,Zn,Cu,Cr and Ni enrichment factors did not exceed 2,and EF of Cr and Ni was nearly 1.It was revealed that the heavy metals including lead,copper,zinc were continuously enriched in recent decades,especially since the 1970s at East Taihu Lake.From 1970s to 1990s anthropogenic fluxes of Pb,Zn,Cu changed slightly,and then increased corresponding to development of industry in catchment.Since early 2000s,the total and anthropogenic Pb fluxes declined,which may be due to forbidden use of leaded petrol in China and adjustment of industrial structure in basin in the period.
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