Investigation of some physico-chemical parameters and determination of heavy metals in selected water samples from Itaogbolu area of Akure, Ondo State, Nigeria

O. S. Adefem and E. E. Awokunmi

Department of Chemistry, Faculty of Science, University of Ado-Ekiti (Nigeria).

ABSTRACT:

Water samples from selected hand-dug wells and Ona-river in Itaogbolu area of Akure North Local Government, Ondo State Nigeria were collected and physico-chemical parameters and heavy metals were determined using standard analytical procedure. For the physico-chemical analysis the results were obtained as follows: PH gave the range (6.59 – 7.68), temperature was found between 21.1 to 27.1°C and conductivity gave the range 300 to 1150 µΩ. The chloride content of all the water samples was found between 78.1 to 1175 mg/l, total hardness gave range 128 to 298 mg/l, the highest was found in Oda river. Suphate level was also the highest in Ona River, which was found in the range 60 to 97 mg/l, Total Dissolved gave range 0.02 to 0.09 mg/l and alkalinity gave range 0.9 to 2.45 mg/. Cadmium was not detected at all in all the water samples, Zinc and iron were found in the ranges 0.7 to 5.5 and 0.1 to 5.3 mg/l respectively. While chromium, lead and copper were found between 0.1 to o.4, 0.1 to 0.2 and 0.1 to 0.4 mg/l respectively. Nickel was only detected in Ona river. These results were said to have agreed with the limits set by World Health Organization for drinking water.

KEYWORDS:

Ona river; well water; physico-chemical parameters; heavy metals

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Copy the following to cite this article: Adefem O. S, Awokunmi E. E. Investigation of some physico-chemical parameters and determination of heavy metals in selected water samples from Itaogbolu area of Akure, Ondo State, Nigeria. Orient J Chem 2009;25(2).

Copy the following to cite this URL: Adefem O. S, Awokunmi E. E. Investigation of some physico-chemical parameters and determination of heavy metals in selected water samples from Itaogbolu area of Akure, Ondo State, Nigeria. Available from: http://www.orientjchem.org/?p=11386