The Concentrations of Heavy Metals in the Lower Cambrian Black Rock Series in Chengkou District, Chongqing
详细信息
- 责任者：Cheng Jun (Key Laboratory of Exogenic Mineralization and Mine Environment ; Chongqing Institute of Geology and Mineral Resources ; Chongqing 400042 ; China) ; Cheng Lijun
- 刊名：Earth and Environment
- 出版年：2012
- 卷期：40(1)
- 关键词：重金属 ; heavy metals ; 重庆 ; Chongqing
- 页码：p.93-99
- 图表：3 illus., 5 tables, 22 refs.
- 分类号：1800
- issnNo：ISSN1672-9250
- isbnNo：CN52-1139/P
摘要
The Lower Cambrian black rock series is well developed in the Chengkou district, Chongqing. The concentrations of Cr, Co, Ni, Cu, Zn, As, Cd, Sb and Pb in polymetallic layer, black rock series and responding weathering soil and silicates were measured. The results showed that the heavy metals are enriched, especially Cd, Zn and As in the polymetallic layer, and the enrichment coefficients are 119.67, 10.73 and 7.30, respectively. The geo-accumulation index and ecological risk index methods have been used to assess the potential environmental effects.
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