Evaluation of heavy metals of (Co, Cr, Cd, Ni, V) in razor clam (Solen rosemaculatus) in Bandar-e Khamir Coast (Iran)

Subject Areas : Water Pollution

L. Salimi ¹ , A. Ashja Ardalan ² , M. Soltani ³

1 - Marine Environment Dep., Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch
2 - Marine Biology Dep., Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch
3 - Young Researchers Club, North Tehran Branch, Islamic Azad University

Received: 2011-06-01 Accepted : 2012-01-02 Published : 2012-03-17

Keywords: Contamination, Heavy metal, Persian Gulf, Razor clam, Bandar-e Khamir,

Abstract :

Five heavy metals (Co, Cr, Cd, Ni, V) in whole body tissue of Solen rosemaculatus of Bandar-e Khamir in summer and winter 2010 were determined. Bandar-e Khamir is one of the major fishing ports in Hormozgan Province in Iran. A sample size of 5-7 cm was harvested from three stations in tidal zone of Bandar-e Khamir. Bivalves transferred to laboratory and biometry whole tissue of  bivalves were separated after preparation and digestion process. Using Atomic Absorption Spectrometer (graphite furnace) amount of heavy metals were measured. Results indicated that: In summer and winter MeanSD concentrations of Cobalt, Chromium, Cadmium and Nickel were (0.0750.026 and 0.0830.034), (0.1000.038 and 0.1420.042), (0.0260.017 and 0.0130.009), (0.9840.287 and 1.1040.344) micrograms per gram dry weight, respectively. Vanadium concentration were in trace amounts below detection limit of the AAS. Results of this study showed that concentration of heavy metals in all samples were less than the permissive international standards. There was a significant difference in the specific concentration of Cr between samples from either different sites or seasons (P<0.05). A significant difference was also observed in comparison of Cd concentrations between samples of different seasons (P<0.05).