Measuring the concentrations of heavy metals nickel, lead and copper in the Shahid Rajaee Port) Crassostreagigas )oysters

Heavy metals are persistent contaminants and pollution of the marine environment is considered one of the serious risks of pollutants.This study measured the concentrations of heavy metals, Lead, Nickel and Copper (Pb, Ni and Cu) in the soft tissue of Crassostrea gigas oyster at Shahid Rajaee Port. Therefore was conducted in the summer of 1392 the( Crassostrea gigas)oysters sampling at five stations in Shahid Rajaee Port. After removing the soft tissue samples from each station were based on standard methods of drying, weighing and chemical digestionand heavy metal concentrations were determined using atomic absorption. Average concentrations of Cu, Ni and Pb were obtained, respectively, 556, 2.97, 2.04 micrograms per gram dry weight. Various activities will increase the likelihood of contamination in the port and high concentrations of these metals can be therefore compared with other results and Standards.