Stability and speciation of heavy metals and metalloids in Tajan River water, North of Iran

  • R. Kasem
  • A. R. KarbassiEmail author
  • B. Omidvar
  • A. Sarang
Original Paper


This study was performed to explore the contents and stability of heavy metals and metalloids in Tajan River water. Water chemistry software (HSC model) was applied to obtain Eh–pH diagrams. The correlation between various parameters and cluster analysis were carried out by the MVSP software. According to the results, the contents of heavy metals were relatively low and in the prescribed limits of surface water standards. pH was slightly alkaline, and redox values ranged from 142 to 201 mV. Cobalt, Cr, Ni, Cu, Zn, Pb, Fe and Th had similar behaviors, and Eh played an effective role in controlling them. Barium and As were governed by salinity. The studied elements are present in the forms of oxide, hydroxide and as free ions.


Eh–pH Element species Heavy metals Heat capacity Tajan River Multivariate statistical package 



We are thankful to the University of Tehran for providing us with the laboratory facilities. Also we acknowledge the support received from the Syrian Ministry of Higher Education.


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Copyright information

© Islamic Azad University (IAU) 2019

Authors and Affiliations

  1. 1.Department of Environmental Engineering, School of Environment, College of EngineeringUniversity of TehranTehranIran

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