Toxic Metal (Pb, Hg and As) Contamination of Muscle, Gill and Liver Tissues of Otolithes rubber, Pampus argenteus, Parastromateus niger, Scomberomorus commerson and Onchorynchus mykiss

Abstract

3 Abstract: The Pb, Hg and As content of the muscle, gill and liver of marin organisms Otolithes rubber, Pampus argenteus, Parastromateus niger, Scomberomorus commerson, Onchorynchus mykiss were measured. Analysis of lead and arsenic was carried out by anodic stripping voltammetry method. Hg analysis was done spectrophotometrically. It was found that mercury concentration reaches to maximum in the gill of Parastromateus niger (0.47 µg/g) followed by the liver of Otolithes rubber (0.001 µg/g), lead content reaches to maximum in the gill of Parastromateus niger (0.11 µg/g), followed by the liver of Scomberomorus commerson, (0.005 µg/g), arsenic concentration is highest in the liver of Otolithes rubber (0.26 µg/g), followed by the muscle of Pampus argenteus (0.007 µg/g). The results of this study indicate that the concentration of Pb, Hg and As in the different tissues of the studied marine organisms were significantly lower than the permissible levels for these toxic metals.