Evaluation of Heavy Metals in Gills, Bones and Muscles of Fishes from Crude Oil Polluted Water of Ogoniland, Rivers State, Nigeria

Abstract

This study was carried out to determine the concentrations of heavy metals (cadmium, chromium, zinc, manganese, lead and iron) in organs (gills, bone and muscle) of Iutjanus campechanus and Chrysichthys nigrodidatatus from Gokhana, and Khana local government areas in River State, Nigeria were investigated. This heavy metals were determined using atomic absorption spectrophotometer (AAS). The result show that Iron was significantly more abundant in the gills, bone and muscle tissue than other element with mean concentration of 144-144.58 mg/kg in the gills, 18.19-39.77 mg/kg in the bone and 5.47-21.50 mg/kg in the muscle of both catfish and red snapper in Kaa while in bodo-city the concentration varies from 189-238 mg/kg in the gills, 42.16-45.39 mg/kg in the bone and 11.74-43.84 mg/kg in the muscle of both fishes respectively. Maximum concentration of Zinc was recorded in gills from Bodo-city for both fishes and minimum value was recorded in the muscle of both fish Original Research ArticlePeer-review history: The peer review history for this paper can be accessed here: