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Evaluation of Temporal Changes in Deep Well Water Quality in Igabi Local Government Area of Kaduna State

Journal of Environmental Protection 2020年第1期11卷 22-33页

作者： John Jiya musa Otuaro Ebierni Akpoebidimiyen Mohammed Tanimu musa Pius Olusegun Olufemi Dada elijah tsado musa Department of Agricultural and Bioresources Engineering Federal University of Technology Minna Nigeria Civil Engineering Department Maritime University Okerenkoko Nigeria Department of Agricultural and Bio-Environmental Engineering Kaduna Polytechnic Kaduna Nigeria Department of Agricultural and Bioresources Engineering Federal University of Agriculture Abeokuta Nigeria Central Research Laboratory University of Ilorin Ilorin Nigeria

The research work was carried out in Igabi Local Government of Kaduna State. Thirty water samples from boreholes were randomly collected within the major towns in November to April (Dry), and May to October (Rainy season). The samples were analyzed for physical, chemical, and bacteriological parameters and to observe any changes in the groundwater quality of the area. Analysis of variance (ANOVA), Pearson Correlation were performed on the data obtained using SPSS 10.0 for a window for significant variations and inter-element relationship. High mean turbidity was recorded in boreholes in Danfili (12.2 NTU), Kwarau (6.2 NTU). Mean turbidity of 4.3 NTU was recorded in Dry season for wells with Rigachikun having 5.1 NTU. It was observed that a negative correlation exists between well depth and heavy metal concentration. There was also a linear relationship of 0.686 between well distance and nitrate (faecal contaminant). Mean value for Fluoride (0.22 mg/l), Sodium (20.78 mg/l), Calcium (15.7 mg/l), Iron (0.013 mg/l), Nitrate (3.69 mg/l), Cadmium (0.00102 mg/l) Chloride (22.107 mg/l) recorded for sampled wells were all within WHO standard. A high value of 24 mg/l and 25 mg/l for Nitrate was recorded in Saminaka Road and Danfili. An indication of contamination during the rainy season indicates surface-groundwater intrusion (influx). The results of the bacteriological analysis indicated that most wells sampled have a range of 1 cfu/100 ml to 7 cfu/100 ml with Danfili Mani having the highest value (7 cfu/100 ml) which make it unsaved (not Potable).

关键词： Temporal Change Analysis Groundwater Physiochemical Bacteriological Quality

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