Author/Authors :
Naderi Farsani ، Mehdi - Islamic Azad University, Urmia Branch , Jenabi Haghparast ، Rezvaneh - University of Urmia , Shahbazi Naserabad ، Saeid - Islamic Azad University, Yasooj Branch , Moghadas ، Fatemeh - Islamic Azad University, Babol branch , Bagheri ، Tahereh - Agricultural Research Education and Extension Organization , Gerami ، Mohammad Hasan - Islamic Azad University
Abstract :
Heavy metal in aquatic ecosystems are monitored by measuring their concentrations in water, sediments and biota. In the presented study, cadmium, copper, lead, mercury, nickel, and zinc concentrations determined in water, sediment and tissues (liver and muscle) of Cyprinus carpio in Aras dam Lake of Iran, during spring, summer, autumn, and winter from 2016 to 2017. The concentration of Pb, Cd, Zn, Cu and Ni of samples were measured using inductively coupled plasmaoptical emission spectroscopy. The concentration of Hg was analyzed using Atomic Absorption equipped with MHS 15 CVAAS. The trend in the metal mean concentrations of liver and muscle was Zn Cu Pb≈Ni Cd Hg, and water and sediment were Cu Zn Pb Cd≈Ni Hg. Heavy metals concentration was more in sediment than fish tissues and water. This results revealed that heavy metals accumulation of muscle was the highest in summer showing the most contaminated season. Whereas, winter had the lowest contamination in water (Cd Hg, Cu, Pb, Ni, Zn), sediments (Hg, Cu, Zn, Pb, Ni), and the liver and muscle of fish (Cd, Zn, Ni, Cu). The amount of heavy metals was less or slightly higher than global standards (EPA, WHO).
Keywords :
Bioaccumulation , Pollution , Environment , Common carp
