Paper Title:
Chemical Fractionation and Bioavailability of Cd, Ni, Cu, Zn and Pb in Sewage-Irrigated Soils from Xiaoqing River, Zhangqiu Area, China
  Abstract

The total contents and chemical phase partitioning of Cd, Ni, Cu, Zn and Pb from long-time sewage- irrigated soil were analyzed in this paper. The results showed that the contents of Ni, Cu, Zn, and Pb did not exceed the the second-level limit of Standard of Soil Environment (GB15618-1995), but the average content of Cd was 1.81 mg•kg-1, which was about three times more than the national standard. The chemical partitioning of metals analysis showed that Cd was present dominantly in the acetic acid extractable fraction with the average percentage of 37.44%, while the other four elements mostly in residual fraction, which indicated that Cd had the highest bioavailability, mobility and phyto-toxicity. Compared to the well-irrigated soils, the percentages of acetic acid extractable fractions of Cd, Ni, Zn and Cu were obviously higher in the contaminated soils, which increased the potential danger of heavy metals pollution.

  Info
Periodical
Advanced Materials Research (Volumes 356-360)
Chapter
Chapter 5: Environmental Analysis and Monitoring
Edited by
Hexing Li, Qunjie Xu and Daquan Zhang
Pages
891-895
DOI
10.4028/www.scientific.net/AMR.356-360.891
Citation
S. P. Feng, X. L. Du, Y. L. Liu, N. N. Zhang, H. Lin, "Chemical Fractionation and Bioavailability of Cd, Ni, Cu, Zn and Pb in Sewage-Irrigated Soils from Xiaoqing River, Zhangqiu Area, China", Advanced Materials Research, Vols. 356-360, pp. 891-895, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Si Lin Yang, Li Qiong Tang, De Qun Zhou
Chapter 7: Pollution Control Project
Abstract:The chemical speciation of metal (Mg, K, Ca and Na) in agricultural and non-agricultural soils was investigated in upstream of the Pearl...
1665