Distribution and Contamination Assessment of Heavy Metals in Water and Soils from the College Town in the Pearl River Delta, China

作者：Xiao, Rong; Bai, Junhong^*; Gao, Haifeng; Wang, Junjing; Huang, Laibin; Liu, Peipei

来源：Clean-Soil Air Water, 2012, 40(10): 1167-1173.

DOI：10.1002/clen.201200016

• Construction
• Environmental risk
• Pollution
• Wetland

The accumulation of heavy metals such as Cu, Zn, Pb, Cd, Cr, and Ni in water and soils in a new-built college town was investigated to demonstrate the effects of city construction on wetland ecosystem. Three sampling sites were chosen in wetland park (A), constructed wetland (B), and construction site (C), respectively. The results showed that the construction site C presented the highest accumulation levels of all six studied metals along soil profiles and hence had the highest eco-toxicity to environment. Sites A and B showed similar accumulation levels, whereas their concentrations were significantly lower than those at site C though seriously high Cd were also found in soils from both sites A and B and dangerous concentration of Pb in water was observed at site A based on several standards or background concentration values. However, when compared with other regions in Pearl River Delta, this college town could be counted as clean island which may be benefit from its isolate location away from urban center and the effective management to avoid pollution.

• 出版日期2012-10
• 单位北京师范大学