American Journal of Educational Research
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American Journal of Educational Research. 2016, 4(13), 976-982
DOI: 10.12691/education-4-13-10
Open AccessArticle

Seasonal Variation Assessment and Correlation Coefficent of Metal Pollutants in Sediments and Water from Porto Novo Lagoon Ecosystem, Benin Republic

Babalola. O. Adeniyi1, and Fiogbe. D. Emile2

1Department of Fisheries Technology, Lagos State Polytechnic, Ikorodu, Lagos State, Nigeria

2Department of Zoology University of Abomey Calavi, Laboratory of Research on Wetlands, République du Benin

Pub. Date: August 18, 2016

Cite this paper:
Babalola. O. Adeniyi and Fiogbe. D. Emile. Seasonal Variation Assessment and Correlation Coefficent of Metal Pollutants in Sediments and Water from Porto Novo Lagoon Ecosystem, Benin Republic. American Journal of Educational Research. 2016; 4(13):976-982. doi: 10.12691/education-4-13-10


The study on concentrations of metal pollutants as an index of pollution in sediments and water samples of Porto-Novo Lagoon ecosystem was carried out for 12 months within two seasons (July-December 2014 and January-June 2015). Metal pollutants including Hg, Cd, Cu, Zn, Cr, Fe, Mn, Pd, Ni, Va, and Methyl mercury were investigated. This study employed the application of exploratory data analysis statistics, laboratory analysis and sampling techniques to reveal all tested metal pollutants and identify their sources. There is a significant difference in the metal pollutants in the sediments and water of Porto-Novo lagoon during rainy and dry seasons at 5% level of significance and correlation analysis showed that the mean concentration of metal pollutants in sediments and water were positive correlated values. The results proved that the sediments and water of Porto-Novo Lagoon are highly polluted with metal Pollutants, which might affect human health as well as the health of the ecosystem. National Priority List (NPL) on Porto-Novo Lagoon ecosystem is therefore, recommended for the revamping of the aquatic ecosystem.

porto-novo lagoon metal pollutants sediments water national priority list

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[1]  Abhijit Mitra, Prabal Barua, Sufia Zaman, Kakoli Banerjee « Analysis of Trace Metals in Commercially Important Crustaceans Collected from UNESCO Protected World Heritage Site of Indian Sundarbans” Turkish Journal of Fisheries and Aquatic Sciences 12: 53-66 (2012).
[2]  Ademoroti, C. M. O., “Standard methods for water and effluents analysis. Foludex Press Ltd., Ibadan. 1996: p 29-118.
[3]  Aniekan Martin Ekanem, Xiang Yang Li, Mark Chapman, Main Ian, and Jianxin Wei., “Effect of Fracture Aperture on P-Wave Attenuation: A Seismic Physical Modelling Study”. ISRN Geophysics Vol.2014, Article ID 241279, 8 pages.
[4]  AOAC., “Association of Official Analytical Chemists Published by the Association of Official Analytical Chemists, Inc. Suite 400 2200 Wilson Boulevard Arlington, Virginia 22201 USA Edited by Kenneth Helrich fifteenth edition, 1990.
[5]  ATSDR., “Agency for Toxic Substances and Disease Registry Division of Toxicology and Human Health Sciences. 2016, 1600 Clifton Road NE, Mailstop F-57 Atlanta, GA 30333.
[6]  Babalola, O.A and. Agbebi F.O., “Sediment Quality Assessment and Trace Metals Bioaccumulation in Oreochromis niloticus from Kuramo Lagoon”. Journal of Agriculture and Rural Development II (1) pg.86-93, June, 2013.
[7]  Barceloux, Donald G.; Barceloux, Donald., “Chromium”. Journal of Toxicology: Clinical Toxicology Volume 37, Issue (2): 173-194, 199.
[8]  Barron, M.G., “Handbook of Ecotoxicology. Lewis Publishers, Boca Raton, 1995 pp. 652-666.
[9]  Beliles, A. A. “The Lesser Metals in "Toxicity of Heavy Metals in the Environment". (Ed.F.W.Oehme) Part II. Marcel Dekker Inc.: New York, 1979 pp. 565-597.
[10]  Callahan M.A., Slimak, M.W., Gabel, N.W. “Water related environmental fate of 129 priority pollutants, introduction and technical background, metals and inorganic, pesticides and PCBs Washington DC” US Environmental Protection Agency, Office of Water Waste and Management Document No.EPA440/4-79-029a,14-1¡14-5.1979.
[11]  Columbia Electronic Encyclopedia, 6th Edition; Feb 2013, p1.
[12]  Dean JG, Bosqui FL, Lanouette VH “Removing heavy metals from waste water”. Environ. Sci.Technol. 6:518-522. 1972.
[13]  Environmental Protection Agency. “Quality Criteria for water .EPA 440/5-86-001.May 1986. Office of water regulations and standards”. Washington DC, USA.
[14]  Esther Ebah, Ichor Tersagh, Gideon C. Okpokwasili., “Studies on Seasonal Variation and Effect of Heavy Metal Pollution on Microbial Load of Marine Sediment”. American Journal of Marine Science Vol. 4, No. 1, 2016, pp 4-10.
[15]  Fatma.A.S, “Bioaccumulation of Selected Metals and Histopathological Alterations in Tissues of Oreochromis niloticus and Lates niloticus from Lake Nasser, Egypt”. Global Veterinaria 2 (4): 205-218.
[16]  Forstner, U and Wittmann, G.T.W. “Metal pollution in the aquatic environment”. Springer-Verlag, Berlin, pp. 30-61. (1983).
[17]  Friday G, “Bioaccumulation of heavy metals in some fauna and flora”. Int. J. Environ. Sci.Tech., 4(2):197-202. 1990
[18]  Gilmour and Henry “Mercury methylation in aquatic systems affected by acid deposition”. Environ Pollution. 1991; 71(2-4):131-69. 1991.
[19]  Hardman DJ, Mc Eldowney S, waite S “Pollution ecology and biotreatment”, Long scientific and technical publishers Singapore. pp. 1056 1059. 1993.
[20]  Kabata-Pendias and Mukherjee, “Trace element in soil and plants” CRC Press Taylor.2007. Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL.
[21]  Lagos State Environment Protection Agency (LASEPA) “Final Draft Report of Lagos State Effluent Limitation Standard and Guidance's Report of the Committee on Effluents Limitation Standards for Lagos State” p. 70. 2001.
[22]  Langston WJ, Spence SK “Metal speciation and bioavailability in aquatic Systems”. John Wiley & Sons, Chichester. 1995 p 407-478.
[23]  Law, AT. And A. Singh, “Relationships between heavy metal contents and bodyweight of fish from the Kelang Estuary Malaysia” Marine Pollution Bulletin 22: 86-89. 1991.
[24]  Manta, D.S., Angelone, M., Bellanca, A., Neri, R. & Sprovieri, M. “Heavy metal in urban soils: A case study from the city of Palermo (Sicily), Italy”. Sci. Total Environ., 300: 229-243.33487-2742. 2002.
[25]  Mason J. “Qualitative Researching” Second Edition. SAGE Publications Ltd. 2002, 6 Bonhill Street London EC2A 4PU ISBN 0 7619 7427 X.
[26]  Meili. M, “The coupling of mercury and organic matter in the biogeochemical cycle — towards a mechanistic model for the boreal forest zone” Article; Water Air & Soil Pollution” April 1991, Volume 56, Issue 1, pp 333-347.
[27]  Mirenda R.J. “Toxicity and accumulation of cadmium in the crayfish, Orconectes virilis (Hagen)”. Arch Environ Contam Toxicol 15: 401-407. 1986.
[28]  Mohiuddini, K. M., Ogawu, Y., Zakir, H. M., Otomo, K. and Shikazono, N. “Heavy metals contamination in water and sediment of an urban river in a developing country”. Autumn 8(4):723-736. 2011.
[29]  Nriagu, JO; Pacyna, J “Quantitative Assessment of Worldwide Contamination of Air, Water and Soil by Trace Metals” .Nature, 333: 134-139. 1988.
[30]  Olof Regnell and G&an Ewald “Factors controlling temporal variation in methyl mercury levels in sediment and water in a seasonally stratified lake” The America Society of Limnology and Oceanography, Inc. 42(8). 1997, I 2(8). 1997, I 784-1795.
[31]  P. G. Georgopoulos, A. Roy, M. J. Yonone-Lioy R. E. Opiekun, and P. J. Lioy Copper Environmental Dynamics and Human Exposure Issues. Nu Horizon Enterprises, Inc. 2001 Cranford, NJ 07016.
[32]  Persaud, D., R. Jaagumagi and A. Hayton, “Provincial Sediment Quality Guidelines; Water Resources Branch, Ontario Ministry of the Environment”, pp: 24.1990.
[33]  Prabal Barua, Abhijit Mitra, Kakoli Banerjee and M. Shah Nawaz Chowdhury. “Seasonal Variation of Heavy Metals Accumulation in Water and Oyster (Saccostrea cucullata) Inhabiting Central and Western Sector of Indian Sundarbans”. Environmental Research Journal Year: 2011 | Volume: 5 | Issue: 3 | Page No.: 121-130.
[34]  Samir M. Saeed and Ibrahim M. Shaker “Assessment Of Heavy Metals Pollution In Water And Sediments and Their Effect On Oreochromis Niloticus In The Northern Delta Lakes, Egypt .8th International Symposium on Tilapia in Aquaculture” 2008.
[35]  Tessier. A, Campbell, P.G.C., Bisson, M. “Sequential extraction for the speciation of particulate trace metals.” Anal. Chem. 51, 844e 851. 1979.
[36]  U. Förstner and G. T. W. Wittmann Metal pollution in the aquatic environment Springer Verlag, Berlin, Heidelberg et New York, 1983 2nd revised edition, 486 pp., 102 Figs., 94 Tabs.
[37]  WHO., “Heavy metals-environmental aspects” Environment Health Criteria No. 85, (1989). World Health Organization, Geneva, Switzerland.
[38]  Yehouenou E.A.P., Adamou R.,Azehoun P.J.,Edorh P.A.and Ahoyo T “Monitoring of Heavy Metals in the complex "Nokoué lake - Cotonou and Porto-Novo lagoon ecosystem during three years in the Republic of Benin.” Research Journal of Chemical Sciences Vol. 3(5), 12-18. (2013).