IIARD International Institute of Academic Research and Development

IIARD INTERNATIONAL JOURNAL OF GEOGRAPHY AND ENVIRONMENTAL MANAGEMENT (IJGEM )

E-ISSN 2504-8821
P-ISSN 2695-1878
VOL. 10 NO. 6 2024
DOI: 10.56201/ijgem.v10.no6.2024.pg22.30

---

Determination of Heavy Metals (Cadmium and Lead) From Tilapia Fish in Oguta Lake, Oguta Local Government Area, Imo State

Obianeli Chinelo .S.; Obioha Helen .U. & Izundu Lilian .A.

---

Abstract

The uptake of heavy metals by fish from the environment, primarily occurs through gills, food, skin and in fresh water.Some aquatic organisms can store heavy metals up to certain amount, which might not be harmful nor toxic, but can reach to human via food chain, which pose as danger to human health (Merlini, 1971).An experiment was carried out on a tilapia fish gotten from Oguta lake in Imo State, to determine the presence of lead (pb) and cadmium (cd);The fish was prepared for analysis by removing the gills and liver, which was dried in an oven at about 900 c grinded into powdery form, after which 1 gram of the sample was weighed out and was transferred into a digestion flastk. 10mls of HN03 was added to the sample and was heated to about 950 c with reflux of 10-15mins without boiling, this action was repeated at intervals till all the brown fumes was given off at a gentle heating of the sample at the temperature of 350 c.2mls of distilled water and 3mls of 30% of H202 was added aliquotely at intervals until a clean sample of the fish extract was obtained; which was further diluted with 50mls of distilled water, and was filtered out. The filterate was used for the analysis of cadmium (CD) and lead (pb) which was determined through the method of Atomic Absorption spectrometer (AAS), to obtain 0.15 presence of cadmium (cd) and 0.63 of lead (pb); which is within the normal range of FAO/WHO which is (0.04-0-95) of cadmium and (0.00-5.00) of lead respectively.

keywords:

Cadmium, Lead, Tilapia Fish

---

References:

Abel, P.D., Papoutsouglou, S.E. 1986. Lethal toxicity of cadmium to Cyprinus carplo and Tilapia
aurea. Bull. Environ. Contam.Toxicol. 37: 382-386.
Afshan, S., Ali, S., Ameen, U.S., Farid, M., Bharwana, S.A., Hannan, F., Ahmad, R. 2014. Effect
of Different Heavy Metal Pollution on Fish. Res. J. Chem. Env. Sci. 2(I):74-79.
Ahmed, K., Baki, M.A., Kundu, G.K., Islam, S., Islam, M., Hossain, M. 2016. Human health risks
from heavy metals in fish of Buriganga river, Bangladesh. SpringerPlus.5:1697.
Akbulut, M., Kaya, H., Celik, E.S., Odabasi, D.A., Odabasi, S.S., Selvi, K. 2010. Assessment of
surface water quality in the Atikhisar Reservoir and Sariçay Creek (Çanakkale, Turkey).
Ekoloji. 19(74):139-149.
Akgün, M., Gül, A., Yilmaz, M. 2007. Sakarya Nehri Çeltikçe Çayi’nda Yasayan
Leuciscuscephalus L., 1758
Ali, A., Al-Ogaily, S.M., Al-Asgah, N.A., Gropp, J. 2003. Effect of sublethal concentrations of
copper on the growth performance of Oreochromis niloticus. J.Appl. Ichthyol. 19:183-188.
Alkan, N., Alkan, A., Gedik, K., Fisher, A. 2016. Assessment of metal concentrations in
commercially important fish species in Black Sea. Toxicology and Industrial Health.
32(3):447-456.
Alloway, B.J., Ayres, D.C. 1993. Chemical principles of environmental pollution.
London: Chapman & Hall.
Al-Weher, S.M. 2008. Levels of Heavy Metal Cd, Cu and Zn in Three Fish Species Collected from
the Northern Jordan Valley, Jordan. Jordan Journal of Biological Sciences. 1(1): 41-16.
Amal, A. M.: (2013), Some trace elements in tissues of some fresh-water fish. Ph. D. Thesis, Dept.
of Food Hygiene, Fac. of Vet. Mid. Assiut Univ.
Ansari, l.A. 1984. Studies on the toxicity of copper sulphate on Channa punctatus and Mystus
vittatus; determination of LC values. Acttaciencis India. 10:154-160.
Arslan, M., Karaytug, S., Cicik, B. 2006. Bakirin Clariaslazera (Valenciennes, 1840)’da Doku
Glikojen ve Serum 50
Awadallah, R. M., Mohamed, A. E. and Gaber, S. A.: 2015, ‘Determination of trace elements in
fish by instrumental neutron activation analysis’, J. Radioanal. Nucl. Chem. Letter 95(3),
1450 - 154
Balik Türlerinde Agir Metal Birikiminin Tespiti. Alinteri. 31(B): 84-90.
Balogun KJ. (2015). Effects of abiotic and biotic factors on fish productivity in Badagry creek,
Nigeria. Ph.D Thesis, University of Ibadan, Nigeria.; 249.
Barak, N. A. E. and Mason, C. F.: (2019)., ‘Survey of heavy metal levels in eels (Anguilla
Anguilla) from some rivers in east Anglia England’, The use of eels as pollution indicators.
Int. Revue. Ges. Hydrobiol. 75, 827-833.
Bat, L., Arici, E. 2016. Heavy metal levels in tissues of Merlangius merlangus (Linnaeus, 1758)
from the Black Sea coast of Turkey and potential risks to human health. International
Journal of Marine Science. 6(10): 1-8.
Blewett, T.A., Leonard, E.M. 2017. Mechanisms of nickel toxicity to fish and invertebrates in
marine and estuarine waters. Environmental Pollution. 223: 1-12.

DOWNLOAD PDF

---

Back