Notice of Retraction: Characteristics of heavy metals pollution and evaluation of its potential ecological risk in surface soil of Dakang town, Jiangyou city

Author(s):  
Dongxia Cui ◽  
Lei Huang ◽  
Peihao Peng ◽  
Jin Sun
2012 ◽  
Vol 518-523 ◽  
pp. 1137-1140 ◽  
Author(s):  
Hui Zhang ◽  
Min Gao ◽  
Ai Ming Song ◽  
Jia Jia Zhao ◽  
Ming Wei Song

As a result of rapid economic development and urbanization, water pollution and degradation of aquatic ecosystems have caused massive damage to the functions and integrity of water resources. The Hakanson potential ecological risk index method for heavy metals toxicity assessment have been used to estimate the ecological risk of Heavy Metals Pollution in Sediments of Beijiang River. The results shows that the average concentration of Cu, Pb, Zn, Ni, Cd, Cr, Hg in sediments is 59.72, 111.29, 218.93, 15.52, 5.70, 5.70 mg/kg, 0.32ug/kg respectively. The content of Hakanson potential ecological risk index of different heavy metals could be shown as Cd> Pb> Cu> Zn> Ni> Cr> Hg. Heavy metals in several samples of the sediments have posed a serious threat on the ecosystem.


2012 ◽  
Vol 610-613 ◽  
pp. 928-931 ◽  
Author(s):  
Hui Min Zhang ◽  
Hui Zhang ◽  
Ai Min Song ◽  
Jian Qiao Qin ◽  
Ming Wei Song

This paper was seleced Qingyuan as a case study, in order to analyze Hg, As, Cu, Zn, Pb, Cd, Ni, Cr concentrations of the soil samples. And used the Hakanson potential ecological risk index method to assess the potential ecological risks of concentrations of heavy metals in soil. The results shows that the average concentration of Hg, As, Cu, Zn, Pb, Cd, Ni, Cr in soil is 6.45, 0.26, 20.25, 119.11, 181.67, 189.22, 0.27, 32.92, 201.35 mg•kg-1 respectively. The rank by severity of ecological risk as Hg > Cu > Pb > As > Cr > Cd > Ni > Zn, based on their single-element indexes. Heavy metals in several samples of the soil have posed a serious threat on the ecosystem.


2011 ◽  
Vol 183-185 ◽  
pp. 480-483 ◽  
Author(s):  
Jun Liu ◽  
Cheng Sun ◽  
Ping Ping Li

Pesticides and heavy metals pollution in soil environment has become a serious problem in many countries including China. Two different types of soils were used in this study to assess whether high soil Cu concentrations may affect the degradation of Pys. The degradation rate of CPM and -CHT decreased with the addition of Cu to soils, indicating that Cu inhibited the degradation of CPM in soils. The results will provide more information about the potential ecological risk of chemicals on surface and groundwaters.


2013 ◽  
Vol 368-370 ◽  
pp. 482-485 ◽  
Author(s):  
Fang Tong Wu ◽  
Hong Yu Zhu ◽  
Juan Guo ◽  
Yan Ni Lei

In order to assess polluting condition of heavy metals in sediment of the Xiangjiang River Changsha section, the spatial distribution of four heavy metals were determined in river sediments at six sampling stations. Geo-accumulation Index of heavy metals in superficial sediment of the Xiangjiang River Changsha section was in the decreasing order of Cd>Zn>Pb>Cu. On the whole, the pollution level was moderate-high, and the order of four heavy metals pollution lever was noted in the sequence of Liuyang River entrance of Xiangjiang> Juzizhou Bridge >Houzishi Bridge> the Second Xiangjiang River Bridge > Xiangjiang Super Bridge > Xiangjiang Sanchaji Bridge. The Potential Ecological Risk Evaluation showed that heavy metals ecological risk in sediment of the Xiangjiang River Changsha section was very high, Cd was the primary contribution element, followed by Pb.


2019 ◽  
Vol 144 ◽  
pp. 167-172 ◽  
Author(s):  
Hamdy E. Nour ◽  
Abdelbaset S. El-Sorogy ◽  
Mohamed Abd El-Wahab ◽  
El Said Nouh ◽  
Mahmoud Mohamaden ◽  
...  

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