Heavy metals in water, soils and plants in riparian wetlands in the Pearl River Estuary, South China

• DOI: 10.1016/j.proenv.2010.10.145
• Publication Date: 2010-12-11T04:20:52Z
• Authors: Honggang Zhang; Baoshan Cui; Rong Xiao; Hui Zhao
• Keywords: Bioconcentration; Scirpus

Samples collected from sites of 26 for water, soils and two native plants (Scirpus tripueter Linn. Cyperus malaccensis Lam.) in riparian wetlands were analyzed to investigate the distribution heavy metals (Cd, Cr, Cu, Ni, Pb Zn) Panyu-Nansha area Pearl River estuary. The results indicated that concentrations among three compartments order: > water no obvious correlations found between plants. is only metal accumulated both correlated with its soils. weak or lack suggest other factors existed influence uptake storage than absorbing water. had same trend accumulation was Cd Zn Cu Ni Cr Pb. translocation showed mostly occurred roots these Compared metals, seemed be much more hazardous. Principal Component analysis Cluster used analyze relevance different identify major sources. dominated variability (83.4% total variance) Pb, by PC1 whereas charged another affected components. Analysis CA sampling all anthropogenic pollutions, industrial wastewater sources especially Cd, PRE.