Investigations of Physico-Chemical Composition of Groundwater in Otuoke and Environs, Bayelsa State, Nigeria

Abadom Dc and Nwankwoala Ho
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Nwankwoala Ho: Department of Geology, University of Port Harcourt, Nigeria

International Journal of Environmental Sciences & Natural Resources, 2018, vol. 9, issue 1, 13-20

Abstract: The study was designed to investigate the groundwater quality in Federal University of Otuoke and environs, Bayelsa State. A total of fourteen groundwater samples were acquired and analyzed for their physico-chemical and heavy metal parameters. Heavy metals were all analyzed with the Atomic Adsorption Spectrometer. The result revealed that for the heavy metals, iron was most predominant, ranging from 0.004 to 10mg/L with mean and SD of 0.95±2.63mg/L. Manganese ranged from 0.01 to 0.91mg/L, with mean and SD of 0.18±0.21mg/L. Copper was below the machine detectable limit in six samples, but ranged from 0.006 to 0.013mg/L, with a mean of 0.01mg/L. All other heavy metal including lead, arsenic, cobalt, boron and barium were below the detectable limit of the machine ( Ca (29.04mg/L) > Mg (10.01mg/L) > K (2.31mg/L); and anionic concentrations; Cl (25.88mg/L) > HCO3 (1.65 mg/L) > PO4 (0.42 mg/L) > NO3 (0.08mg/L) > SO4 (0.05mg/L).Assessment of groundwater in the area for drinking purposes revealed that the water is predominantly acidic (pH=6.37), with iron (0.95mg/L) and manganese (maximum =0.91mg/L) contents exceeding regulatory guidelines (WHO, 2011; NSDWQ, 2007) for potable drinking water in most locations. This shows that the groundwater sources are unsafe for consumption purposes. All other measured chemical parameters were within regulatory requirements.

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Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:adp:ijesnr:v:9:y:2018:i:1:p:13-20

DOI: 10.19080/IJESNR.2018.08.555752

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