Volume 4, Issue 2, June 2019, Page: 58-72
Assessment of Physico-Chemical Parameters and Their Pollution Implications on the Major Dams in Ekiti State
Olagbemide Peter Taiwo, Department of Zoology, University of Ilorin, Ilorin, Nigeria; Department of Biological Sciences, Afe Babalola University, Ado-Ekiti, Nigeria
Owolabi Olufemi, Department of Zoology, University of Ilorin, Ilorin, Nigeria
Received: Jun. 10, 2019;       Accepted: Jul. 8, 2019;       Published: Jul. 17, 2019
DOI: 10.11648/j.ijee.20190402.13      View  43      Downloads  13
The study was aimed at assessing the Physico-chemical parameters namely, temperature, electrical conductivity (EC), pH, turbidity, total alkalinity (TA), total hardness (TH), total dissolved solids (TDS), dissolved oxygen (DO2); total solids (TS), total suspended solids (TSS) colour, potassium, Zinc, Copper, total Iron, BOD, COD etc. in three dams in Ekiti State, South-West Nigeria. The seasonal variations in the physicochemical parameters of water of the dams were studied from November, 2017 to October, 2018. Water samples were collected from the dams on monthly basis and analyzed for 26 water physico-chemical parameters by using standard methods. The standards for the drinking water recommended by the Indian Council of Medical Research (ICMR), World Health Organization (WHO), Nigerian Industrial Standard (NIS), National Environmental Standards and Regulations Enforcement Agency (NESREA) and Bureau of Indian standards (BIS) were used in this study. The comparison of the physico-chemical parameters values with the standard values of WHO guidelines and other international standards revealed the high level of BOD, COD, turbidity, DO2, pH, colour, K, Fe, Mn, Cu, Zn, Pb and Cd in the water content. There were significant differences (p > 0.05) between the seasons (dry and wet) values of some of the physicochemical parameters in Egbe dam, Ureje dam and Ero dam. pH, DO2, TSS, EC, TDS and TS had higher values in the rainy season while Temperature, BOD, COD, NO3, Alkalinity, NO2 and PO4 had higher values during the dry season in the dams with few exemptions. The accumulation of these parameters in high values may render the dams’ water unsuitable for drinking. In this study, it was observed that most of the physico-chemical parameters except metals were higher in Ureje dam than Egbe dam and Ero dam. This might be due to population increase, indiscriminate dumping of refuse around the dam, urbanization, domestic effluents and other attendant problems of the State capital where the dam is located and thus indicate that Ureje dam was more contaminated than Egbe and Ero dams in terms of anthropogenic contamination. Conclusively, the water from Egbe, Ureje and Ero dams may support fish production but is not fit for domestic and drinking purpose without adequate treatment.
Physico-chemical Parameters, Dams. Seasonal, Ekiti State
To cite this article
Olagbemide Peter Taiwo, Owolabi Olufemi, Assessment of Physico-Chemical Parameters and Their Pollution Implications on the Major Dams in Ekiti State, International Journal of Ecotoxicology and Ecobiology. Vol. 4, No. 2, 2019, pp. 58-72. doi: 10.11648/j.ijee.20190402.13
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