PDF(Pubmed)
Abstract：
In Bangladesh, groundwater is the most widely used source of drinking water for rural communities. However, the groundwater quality is degraded by natural contaminants and anthropogenic pollution. Groundwater is a reliable and sustainable source of safe water for irrigation and domestic purposes, especially during the dry season. The water quality assessment data for the study area was not found in the literature. This study aims to assess groundwater quality and seasonal variation in a rural area of five unions of Bagatipara Upazila, Natore, and its suitability for drinking purposes by measuring the Water Quality Index (WQI). The groundwater of five unions, namely Dayarampur, Bagatipara, Faguardiar, Jamnagar, and Pacca, has been selected for investigation. The electrical conductivity (EC), color, and turbidity exceeded the ECR guidelines. EC showed a positive correlation with total dissolved solids (TDS), total solids (TS), and turbidity. On the other hand, dissolved oxygen (DO), hardness, chloride, carbon-di-oxide (CO2), and iron (Fe) concentrations varied based on the location of the sampling points. The bacteriological parameters TC and E. coli were found in most of the samples, which indicate the potential sources of contaminants such as septic tank leakage and inadequate waste disposal systems. The groundwater quality was found not to be influenced by seasonal variation except by pH, DO, and CO2. The Water Quality Index (WQI) spatial mapping demonstrated that during the post-monsoon period, the water quality of the central part of Bagatipara upazila was in \'good\' condition, which was in Bagatipara, Fagurdiar, and Pacca unions, whereas during the pre-monsoon season, the \'good\' condition was found very limited to Fagurdiar union only. The study revealed that the groundwater of Bagtipara Upazila is not suitable for drinking water due to the presence of TC and E. Coli as well as \'poor\' to \'unsuitable\' conditions in most of the areas based on WQI.
摘要：
在孟加拉国,地下水是农村社区使用最广泛的饮用水源。然而,自然污染物和人为污染使地下水质量退化。地下水是灌溉和生活用水的可靠和可持续的安全水源。尤其是在旱季.在文献中找不到研究区域的水质评价数据。这项研究旨在评估BagatiparaUpazila五个工会的农村地区的地下水质量和季节性变化，Natore,及其通过测量水质指数(WQI)对饮用目的的适用性。五个工会的地下水，即Dayarampur,Bagatipara,法瓜迪亚,Jamnagar,还有帕卡,已被选中进行调查。电导率（EC），颜色,浊度超过ECR指南。EC与总溶解固体（TDS）呈正相关，总固体(TS)，和浊度。另一方面,溶解氧（DO），硬度,氯化物,二氧化碳（CO2），和铁（Fe）浓度根据采样点的位置而变化。在大多数样品中发现了细菌学参数TC和大肠杆菌，这表明污染物的潜在来源，如化粪池泄漏和废物处理系统不足。除pH值外，地下水水质不受季节变化的影响。DO,和CO2。水质指数(WQI)空间制图表明，在季风后期间，Bagatiparaupazila中部的水质状况良好，那是在Bagatipara，Fagurdiar,和帕卡工会,而在季风前季节，发现“良好”的条件仅限于Fagurdiar工会。研究表明，BagtiparaUpazila的地下水由于TC和大肠杆菌的存在以及基于WQI的大多数地区的“不良”到“不合适”条件而不适合饮用水。
