Abstract

The research assesses the suitability of groundwater in Eha-Ndiagu and its Environs, astern Nigeria, for domestic and irrigation uses by analyzing the physicochemical, heavy metal, and bacteriological parameters in the area. The physicochemical analysis revealed that the groundwater is anthropologically contaminated by sewage and agricultural wastes.The forensic relevance and health implications of parameters with comparison to their respective recommended standards were elaborated. The parameter associations such as E coli, Chloride, Nitrate and total coliform counts were used to unravel sewage source of contamination while phosphate,nitrate and potassium were diagnostic of agricultural contamination Based on the conventional water quality index calculations, 60% of the water samples indicates poor water quality while 8% are within the good water range and 32% are within the very poor water range, and this finding was attributed to the presence of faecal and total coliform in the groundwater of the study area. MAR, PI, KR, SAR, and SSP were used to assess the groundwater suitability for irrigation use, and their respective spatial distribution maps were integrated and superimposed, for the production of an irrigation suitability map for the study area, delineating areas with poor, fair and good groundwater quality suitable for irrigation purposes. The map shows that about 95% of the groundwater samples are suitable for irrigation purposes while 5% are unsuitable.

摘要

该研究通过分析该地区的物理化学、重金属和细菌学参数，评估了尼日利亚东部 Eha-Ndiagu 及其周边地区地下水对家庭和灌溉用途的适用性。物理化学分析表明，地下水在人类学上受到污水和农业废物的污染。详细阐述了参数与各自推荐标准相比的法医学相关性和健康影响。大肠杆菌等参数关联, 氯化物、硝酸盐和总大肠菌群计数用于揭示污水污染源，而磷酸盐、硝酸盐和钾用于诊断农业污染 根据常规水质指数计算，60% 的水样表明水质较差，而 8% 的水样表明水质较差。在良好水域范围内，32% 在极差水域范围内，这一发现归因于研究区地下水中存在粪便和总大肠菌群。采用MAR、PI、KR、SAR、SSP对地下水灌溉适宜性进行评价，将其各自的空间分布图进行整合叠加，制作研究区灌溉适宜性图，划定研究区、适合灌溉用途的公平和良好的地下水质量。