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ASSESSMENT OF HEAVY METALS IN FISHES (Ictalurus Punctatus) FROM RIVER NUN WITHIN TOMBIA AND POLAKU AXIS, BAYELSA STATE

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DOI: 10.23977/afshn.2018.21001 | Downloads: 60 | Views: 4930

Author(s)

Orodu V. E 1, Onwukwe Ikechukwu Godfirst 2

Affiliation(s)

1 Department of Chemical Sciences, Niger Delta University, Wilberforce Island, P.M.B 017, Yenegoa, Nigeria
2 Department of Chemical Science, Niger Delta University, Wilberforce Island P.M>B 017, Yenegoa, Nigeria

Corresponding Author

Orodu V. E

ABSTRACT

The concentration of the following heavy metals (Fe, Pb, Cd, Cu, & Cr) in fishes (IctalurusPunctatus) from River Nun within the Tombia and Polaku axis located in Bayelsa State Nigeria was studied. The gills, Kidney, liver, bones and flesh of the fishes after oven drying for 72 hours was ground together into powder. One gram of the ground sample was weighed and digested using aqua regia in the ratio of 3:1 (HNO3 and H2SO4). The sample was then filtered and run in an AAS. The following result was observed and presented in mean ± SEM. For Tombia Fish; Fe recorded a concentration of 1.910± 0.001mg/kg, lead recorded 0.707 ± 0.001mg/kg, Chromium = 0.451 ± 0.001mg/kg, Copper = 0.246 ± 0.001mg/kg, and Cadmium = 0.070 ± 0.001mg/kg. While for Polaku Fish, Fe = 0.128 ± 0.001mg/kg, Pb = 0.004 ± 0.001mg/kg, Cu = 0.002 ± 0.001mg/kg, Cr and Cd were below detection limit. According to the maximum permissible limits stipulated by World Health Organization (WHO), the two fishes from River Nun within the axis of Polaku and Tombia Community are within the range and fit for consumption by humans. But in comparing the two fishes within these two communities (Tombia and Polaku), there is an increase in lead and cadmium (Pb and Cd) for Tombia compared to Polaku which might be as a result of the domestic activities carried out at the bank of Tombia river.

KEYWORDS

IctalurusPunctatus; Heavy Metals; WHO

CITE THIS PAPER

Orodu V. E, Onwukwe I. G., ASSESSMENT OF HEAVY METALS IN FISHES (Ictalurus Punctatus) FROM RIVER NUN WITHIN TOMBIA AND POLAKU AXIS, BAYELSA STATE. Advances in Food Science and Human Nutrition (2018) 2: 1-10.

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