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Effect of Distance of sanitary pits on the Physicochemical Properties of Hand Dug Well Water Samples Consumed by People Living in Akwuke Community, Enugu South Local Government Area of Enugu State

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Journal of Water Resource and Protection 2021年第5期13卷 340-349页

作者： E. Ezeh C. I. Akagha O. Okeke C. C. Aniobi C. F. Nnadozie Department of Chemical Engineering Nnamdi Azikiwe University Awka Anambra State Chemistry Department Federal University of Technology Owerri Imo State Plastic Production Unit Scientific Equipment Development Institute Akwuke-Enugu State Department of Community Medicine University of Nigeria Enugu Campus Enugu State Department of Chemistry School of Physical sciences Federal University of Technology Owerri Imo State

Studies were carried out to evaluate the effect of distance of sanitary pits on the physicochemical properties of hand-dug well water samples consumed by people living in Akwuke community, Enugu South Local Government Area of Enugu State, using standard analytical procedures and instrumentation. The mean range of pH, turbidity, electrical conductivity, total dissolved solids, nitrate and sulphate in the well water samples at the determined sampling distances of 3, 6 and 10 m from the sanitary pits were 5.9 - 7.24, 1.92 - 6.63 NTU, 122.03 - 303.91 μs/cm, 100.00 - 261.90 mg/L, 1.21 - 4.68 mg/L and 28.89 - 49/61 mg/L respectively. The investigated mean physicochemical parameters of the well water samples were generally observed to increase with decrease in the distance of the well water samples from the sanitary pits. The levels of the determined physicochemical parameter of the well water samples at sampling distances of 3, 6, and 10 m respectively from the sanitary pits were statistically significant. The mean pH values of the well water samples at sampling distances of 3 and 6 m respectively from the sanitary pits were below the WHO recommended threshold limits for safe drinking water. Additionally, the mean values of turbidity and total dissolved solids of the well water samples at a sampling distance of 3 m from the sanitary pits were above the WHO permissible limits. The pH, turbidity and total dissolved solids are some of the most important parameters used in assessing the quality of any water source, therefore, the poor physicochemical properties of well water samples at a sampling distance of 3 m from the sanitary pits could put at severe health risk consumption of this water over a prolonged time. Siting well water at a reasonable far distance (above 10 m) for sanitary pits especially in communities with severe water scarcity would definitely help guarantee access to safe drinking water by rural as well as urban dwellers in Nigeria.

关键词： Physicochemical Parameters Well Water sanitary pits and faecal contamination

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