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Research Journal of Science and Technology
Year : 2017, Volume : 9, Issue : 2
First page : ( 224) Last page : ( 228)
Print ISSN : 0975-4393. Online ISSN : 2349-2988.
Article DOI : 10.5958/2349-2988.2017.00039.0

Determination of Some Heavy Metal Pollutants In Conydors semiaquilus and Oreochromis niloticus Samples from Ndibe Beach at Afikpo North Local Government Area, Afikpo of Ebonyi State Nigeria

Mr. Mbonu Okechukwu Francis1,*, Mr. Udeozor Anastecia Preciouse2,**, Mr. Obinna Okwuosa Ben3,***

1University Lecturer, Akanu Ibiam Fed. Polytechnic Unwana Afikpo Ebonyi State Nigeria

2University Lecturer, Evangel University Ebonyi State

3University Lecturer, Akanu Ibiam Fed. Polytechnic Unwana Afikpo Ebonyi State Nigeria

*Corresponding Author E-mail: cimapay2k2@yahoo.com

**E-mail: preciousudeozor23@gmail.com

***E-mail: okwuoobinnaben@gmail.com

Online published on 18 September, 2017.

Abstract

Heavy metals in our environment have been of great concern because of their toxicity at concentrations above permissible limit. Heavy metals enter the environment through different ways such as industrial activities etc. The fish samples cat fish (Conydors semiaquicus) and Tilapia fish (Oreochromis niloticus) were collected from Ndibe-Beach in Afikpo North Local Government Area of Ebonyi State. The fish were carefully deselected for digestion and the levels of heavy metals were determined using “GBC sent AA” atomic absorption spectrophotometer. Metals present in the fish samples were analyzed in the order: Cr, Cu, Zn, As, Cd, Hg and Pb. It was observed that Cr, Cu, Zn, Cd and Pb were detected but AS and Hg were not detected. Zinc has the highest concentration of 46.0mg/kg in Tilapia (Oreohromis niloticus) and 50.3mg/kg in catfish (Conydors semiauitus). Cr has and 3.20mg/kg in catfish (Conydors semiauitus) and concentration of 3.80mg/kg in Tilapia fish (Oreochromic semiaquilus). The howest concentration were detected in Pb which is 1.6mg/kg in Tuapia fish (Oreochromis niloticus) and 1.2mg/kg in catfish (Conydros semiqauilus). The concentration range of the heavy metals: Cu > Zn > Cr > Cd > Pd for Tilapia fish while for Cat fish the range is: Cu > Cr > Cd > Pb. The level of the four heavy metals detected were High compared to the W.H.O standard.

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Keywords

Tilapia fish, Cat fish, Environment, Pollution, heavy metals.

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