Distribution of heavy metals and pesticides residues in sediments of some rivers in Ekiti state, Southwest Nigeria

Authors

  • Olayinka D. Akodu Department of Chemistry, Federal University of Technology, Akure, Ondo State
  • Ademola F. Aiyesanmi Department of Chemistry, Federal University of Technology, Akure, Ondo State
  • Bolaji W. Tomori DDepartment of Chemistry, Federal University of Technology, Akure, Ondo State

DOI:

https://doi.org/10.6092/issn.2281-4485/16969

Keywords:

Benthic, ecosystem, sediments, PAHs, pesticides, pollutants

Abstract

Sediments are habitats and major sources of nutrients for benthic organisms. High concentration of pollutants can impact negatively on the lives of such organisms and ultimately on the lives of human beings who may feed on them. This study was carried out in order to evaluate some environmental pollutants’ load: heavy metals and pesticide residues in Irintan, Omi-Eye and Egbigbu river sediments in Ekiti State, Southwest Nigeria. Sediment samples were taken at upper, middle and lower courses of each river relative to the farm used for the study. The samples were air-dried in the laboratory, disaggregated, sieved and analysed for heavy metals and organochlorine pesticides (OCP) residues using standard methods. The heavy metal range at floodplains (mg/kg) was: Cr (0.25-2.08), Cu (0.19-14.28), Zn (BDL-2.53), Cd (BDL-0.87), Pb (BDL-0.32), Fe (0.38-22.35) while for OCP residues, the range (µg/kg) was α-BHC (0.15-0.33), β-BHC (0.19-14.28), ẟ-BHC (0.25-1.09), lindane (BDL-1.23), chlorothalonil (0.87-1.44), heptachlor (BDL-1.04), heptachlor epoxide (BDL-1.96), endosulfan I (0.20-1.98), endosulfan II (BDL-0.67), aldrin (BDL-1.93), endrin (BDL-0.37), dieldrin (BDL-0.42), p,p-DDE (BDL-0.52), p,p-DDT (BDL-1.20), methoxychlor (0.21-0.88). The pollutants’ concentrations in the sediments were generally low at all the sites when compared with international guidelines for each pollutant. Governments in Nigeria should checkmate indiscriminate dumping of refuse most of which end in our rivers in order to reduce pollutants’ concentration in rivers/sediments so as to protect the lives of benthic organisms.

References

ADEYEMI M.O., OLUSOLA J.A., AKPOBASAH O., ADIDI N.E., SHELLE R.O.D. (2019) Assessment of heavy metals pollution in sediments from Ologe Lagoon, Agbara, Lagos, Nigeria. Journal of Geoscience and Environment Protection, Vol. 7 No 7: 61-73. doi:10.4236/gep.2019.77006. DOI:10.4236/GEP.2019.77006

AKINYEMI O., AYENI O.A., FAWEYA O., IBRAHEEM A.G. (2013) “Statistical Study of Annual and Monthly Rainfall Patterns in Ekiti State, Nigeria”, International Journal of Pure and Applied Science & Technology, 15(2): 1-7. Print: ISSN 0970-9274, Online: 2456-6608. DOI: 10.31901/24566608.2021/74.1-3.3307

ALGUL F., BEYHAN M. (2020) Concentrations and sources of heavy metals in shallow sediments in Lake Bafa, Turkey. Scientific Reports, 10: 11782. DOI: 10:1038/s41598-020-68833-2.

AMADI A.N., EBIEME E.E., MUSA A., OLASEHINDE P.I., UNEVHO C.I., AMEH I.M. (2016) “Stream sediment as pollution indicator within Shikira Gold Mining Site, Niger State, North Central Nigeria”, Journal of Mining and Geology, 54(2): 119-131. http://repository.futminna.edu.ng:8080/jspui/handle/123456789/577

EUROPEAN UNION (EC) (2017) Guideline document on analytical quality control and method validation procedures for pesticides residues and analysis in foods and feeds. SANTE/11813/2017; HTTPS://ec.europa.eu/food/sites/food/files/plant/docs/pesticidesmriguidelineswrkdoc2017-11813.pdf

EL-ALFY M.A, HASBALLAH A.F., EL-ZAINY A.M. (2019) Toxicity assessment of heavy metals and organochlorine pesticides in freshwater and marine environments, Rosetta area, Egypt using multiple approaches. Sustainable Environment Research, 29:19. https://doi.org/10.1186/s42834-019-0020-9

HOWARD I.C., OKPARA K.E., TECHATO K. (2021) Toxicity and risk assessments of polycyclic aromatic hydrocarbons in river bed sediments of an Artisanal Crude Oil Refining Area in the Niger Delta, Nigeria, Water, 13: 1-19. https://doi.org/10.3390/w13223295

IVANOVA A., WIBERQ K., AHRENS L., ZUBCOV E., DAHLBERG A. (2021) “Spatial distribution of legacy pesticides in rivers sediment from the Republic of Moldova”, Chemosphere, Vol. 279: 130923. DOI: 10.1016/j.2021.130923

IZE-IYAMU O.K., ASIA I.O., EGWAKHIDE P.A. (2007) “Concentrations of residues from organochlorine pesticides in water and fish from some rivers in Edo State, Nigeria”, International Journal of Physical Sciences, 2(9): 237–241. ISSN: 1992-1950, https://doi.org/10.5897/IJPS.9000141

KENDZIERSKA H., MATUZSZEWSKA K.L.,BURSKA D., JANAS U. (2020) Benthic fluxes of oxygen and nutrients under the influence of macrobenthic fauna on the periphery of intermittent hypoxic zone in the Baltic Sea. Journal of Experimental Marine Biology and Ecology, Vol. 530-531, 2020, 151439. https://doi.org/10.1016/j.jembe.2020.151439

KUMAR B., GAUR R., GOEL G., MISHRA M., PRAKASH D., SINGH S.K., LAL R.B., KUMAR S., SHARMA C.S. (2011) “Distribution of Pesticides in Sediments from Municipal drains in Delhi, India”, Asian Journal of Scientific Research, 4(3): 271-280. ISBN 1992-1451. DOI: 10.3923ajsr.2011.271.280

LONG E.R., MACDONALD D.D., SMITH S.I. & F. D. CALDER F.D. (1995) “Incidence of adverse biological effects within ranges of chemical concentrations in marine and estuarine sediments”, Environmental Management, 19(1): 81-97. DOI:10.1007/BF02472006

MACDONALD D.D., INGERSOIL C.G., BERGER T.A. (2000) “Development and Evaluation of Concensus-Based Sediment Quality Guidelines for Fresh Water Ecosystems”, Archives of Environmental Contamination and Toxicology, 39: 21-31. DOI:10.1007s002440010075

MAHUGIJA J.A.M., NAMBELA L., MMOCHI A.J. (2017) “Level and distribution of pesticide residues in soil and sediments in Eastern Lake Tangayika environs”, International Journal Biological and Chemical Sciences, 11(5): 2537-2547. DOI:10.4314/ijbcs.v11i5.46

NFON E., COUSINS I.T., BROMAN D. (2008) “Biomagnification of organic pollutants in benthic and pelagic marine food chains from Baltic Sea”, Science of the Total Environment, 397: 190-204. ISSN: 0048-9697, E-ISSN 1879-1026

OGBEIBU A.E., OMOIGBERALE M.O., MAXEWELL I. (2014) “Using Pollution Load Index and Geoaccumulation Index for the Assessment of Heavy metal Pollution and Sediment Quality of the Benin River, Nigeria”, Natural Environment, 2(1): 1-9. DOI:10.12966/nc.05.01.2014

OKOYA A.O., OGUNFOWOKAN A.O., ASUBIOJO O.I., TORTO N. (2013) Organochlorine pesticide residue in sediments and waters from cocoa producing areas of Ondo State, Southwestern Nigeria. International Scholarly Research Notices. Vol. 2013, Article ID 131647, 12 pages. https://doi.org/10.1155/2013/131647

ONOYIMA C.C., OKIBE F.G., OGAH E., DALLATU Y.A. (2021) Heavy metal pollution and ecological risk assessment in the sediment of River Kaduna, Nigeria. Journal of Research in Forestry, Wildlife and Environment, 133(4): 205-214. ISSN: 2141-1778

OLAFISOYE O.B., SENKALE T.M., OSIBOTE A.O. (2016) Determination of level of pesticides in sediments and water from Lagos lagoon. Journal of Advanced Agricultural Technologies, 3(3): 222-225. doi:10.18178/joaat.3.3.222-225

OLAWALE F. P., AIYESANMI F. A., ADEKOYA O. A., OLADELE S. J. (2017) Assessment of heavy metal enrichment and level of contamination of floodplain soils in Ondo State, Nigeria. Journal of Geography Environment and Earth Science International, 10 (2): 1-11. DOI: 10.9734/JGEESI/201732278

PEKEY H.(2006) “Heavy metal pollution assessment in sediments of the Izmit Bay, Turkey”, Environmental Monitoring and Assessment, 123: 219-231. DOI: 10.1007/s1066-006-9192-y

SARIA J.A.M. (2016) “Health Risk Assessment of Heavy Metals via consumption of contaminated vegetables cultivated at Dar Es Salam and Morogoro Regions in Tanzania”, Journal of Multidisplinary Engineering Science Studies, 2(11): 1133-1139. ISSN: 2458-925X

SKORBILOWICZ M., SKORBILOWICZ E., GORSKA M. (2018) “The content of Heavy metals in Botton Sediments of Selected City Rivers of Podlaise Province”, Journal of Ecological Engineering, 19(4): 197-206. https://doi.org/10.12911/22998993/89650

UNITED STATE ENVIRONMENTAL PROTECTION AGENCY (USEPA) METHOD 1699 (2007) “Pesticides in water, soil, biosolids and tissue by High Resolution Gas Chromatography with High Resolution Mass Spectrometry”. 821-R-08-001. http://www.epa.gov/waterscience

VESEL O., MOSTEO R., ORMAD M.P., OVELLEIRO J.L. (2013) “Sediment quality assessment of two industrialized areas of Spain”, International Journal Environmental Research, 7(4):1039-1046. ISSN: 1735-6865

ZANG-YEI H. (2004) “Evaluating heavy metal contents in mine composts using four digestion methods”, Bioresource Technology, 95: 53-59. https://doi.org/10.1016/j.biortech.2004.02.008

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Published

2023-07-04

How to Cite

Akodu, O. D., Aiyesanmi, A. F., & Tomori, B. W. (2023). Distribution of heavy metals and pesticides residues in sediments of some rivers in Ekiti state, Southwest Nigeria: . EQA - International Journal of Environmental Quality, 56(1), 62–69. https://doi.org/10.6092/issn.2281-4485/16969

Issue

Vol. 56 (2023)

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Copyright (c) 2023 Olayinka D. Akodu, Ademola F. Aiyesanmi, Bolaji W. Tomori

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