Soil heavy metal pollution in the urban-rural transitional area: a case study of Hangzhou city, China

摘要：

A total of 74 surface soil samples (0-20cm) were collected from the urban-rural transitional area of Hangzhou city, China, and the contents of total metals (As, Cu, Co, Cd, Cr, Hg, Mn, Ni, Pb and Zn) were determined. The combination of multivriate statistical and geostatistical methods successfully separated the contaminating elements (As, Cd, Cu, Hg, Pb and Zn) from the uncontaminated elements (Co, Cr, Ni and Mn). A significant correlation was found between the uncontaminated elements and the total Al <,2>O<,3>, Fe<,2>O<,3>, and SiO<,2> in soils, indicating the source of these elements was largely controlled by soil-forming factors. On the other hand, those contaminating elements showed relatively weaker correlation and higher spatial variability, indicating that the abundance and spatial distribution of the elements were mostly affected by anthropic inputs. Through the pollution evaluation, it was found 69.2％ of the study area suffers from moderate or severe pollution problems.

关键词： Multivariate statistics Geostatistics the Urban-rural transitional area Heavy metals

作者: Xu JM Chen T Liu XM Shi JC Wu JJ

作者单位: Institute of Soil and Water Resources and Environmental Science, Zhejiang University, Hangzhou 310029, China

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 138-139

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）