Preliminary Risk Assessment of Trace Metal Pollution in Surface Water from Yangtze River in Nanjing Section, China

被引:346
作者
Wu, B. [1 ]
Zhao, D. Y. [1 ]
Jia, H. Y. [1 ]
Zhang, Y. [1 ]
Zhang, X. X. [1 ]
Cheng, S. P. [1 ]
机构
[1] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Peoples R China
关键词
Risk assessment; Trace metal; Yangtze River; POLYCYCLIC AROMATIC-HYDROCARBONS; SEDIMENTS; ESTUARY; EXPOSURE; CONTAMINATION; ELEMENTS;
D O I
10.1007/s00128-008-9497-3
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In order to investigate the contamination levels of trace metals, surface water samples were collected from six regions along Yangtze River in Nanjing Section. The concentrations of trace metals (As, B, Ba, Be, Cd, Cr, Cu, Fe, Pb, Li, Mn, Mo, Ni, Sb, Se, Sn, Sr, V and Zn) were determined using inductively coupled plasma-atomic emission spectrometry (ICP-AES). Total concentrations of the metals in the water samples ranged from 825.1 to 950.4 mu g/L. The result was compared with international water quality guidelines. Seven metals levels were above the permissible limit as prescribed by guidelines. A preliminary risk assessment was then carried out to determine the human health risk via calculating Hazard Quotient and carcinogenic risk of the metals. Hazard Quotients of all metals were lower than unity, except As. The carcinogenic risk of As and Cd was higher than 10(-6), suggesting that those two metals have potential adverse effects on local residents.
引用
收藏
页码:405 / 409
页数:5
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