会议专题

GIS-Based Source Apportionment of Heavy Metals in Marine Sediments

GIS-based source apportionment was introduced in analysis of the anthropogenic heavy metals in marine sediment. EFs with Fe as a normalizer and local background as reference values was properly tested and suitable in Hong Kong, and Zn, Ni, Pb, Cu, Cd, Hg, and Cr mainly originated from anthropogenic sources, while Al, Mn, and Fe were derived from rocks weathering. Rotated PCA and GIS mapping further identified two types of anthropogenic sources and their impacted regions. In addition, multivariate linear regression of absolute principal component scores successfully calculated the source contributions with uncertainties almost less than 8%: the first anthropogenic sources were responsible for 50.0, 45.1, 86.6, 78.9, and 87.5% of the Zn, Pb, Cu, Cd, and Hg, respectively, whereas 49.9% of the Ni and 58.4% of the Cr came from the second anthropogenic sources.

Feng Zhou Huaicheng Guo

College of Environmental Sciences, Peking University, Beijing 100871, China

国际会议

The 12th Conference of the International Association for Mathematical Geology(第12届国际数学地质大会)

北京

英文

376-380

2007-08-26(万方平台首次上网日期,不代表论文的发表时间)