Groundwater aquifers are a common source of drinking water in Bangladesh. However, groundwater contamination is a major public health concern across the country. This research aims to examine the groundwater quality and health concerns using a random sampling process. Multivariate statistical and health risk analyses of elements were performed to determine the source of contaminants and their effects on human health. A total of 24 parameters were analyzed, where Na⁺, NH₄⁺, K⁺, Mg²⁺, F⁻, NO₃⁻, Mn, Fe, Se, U, and As concentrations were found to be high in different sampling points compared to the Department of Environment of Bangladesh (DoE), and the World Health Organization (WHO) groundwater quality standards. Principal Component Analysis (PCA) and Cluster Analysis (CA) identified the dominant and potential sources of contaminants in the groundwater aquifer, including geogenic, salinity intrusion, industrial, and agricultural. The results of the degree of contamination level (C_d) and the heavy metal pollution index (HPI) showed that 28% and 12% of the sampling points had high levels of heavy metal contamination, indicating a high risk for human health issues. Cr concentrations were found to have a higher carcinogenic (cancer) risk than As and Cd concentrations. Hazard quotient (HQ) and hazard index (HI) scores expressed the hazardous status and possible chronic effects in the context of individual sampling points. For both child and adults, 44% and 36% of the sampling points had a high HI score, indicating the possibility of long-term health risks for local populations.

地下水含水层是孟加拉国常见的饮用水源。然而，地下水污染是全国主要的公共卫生问题。本研究旨在使用随机抽样过程检查地下水质量和健康问题。对元素进行了多变量统计和健康风险分析，以确定污染物的来源及其对人类健康的影响。共分析了 24 个参数，其中 Na ⁺、NH ₄ ⁺、K ⁺、Mg ²⁺、F ^-、NO ₃ ^-与孟加拉国环境部 (DoE) 和世界卫生组织 (WHO) 的地下水质量标准相比，不同采样点的 Mn、Fe、Se、U 和 As 浓度均较高。主成分分析 (PCA) 和聚类分析 (CA) 确定了地下水含水层中主要和潜在的污染物来源，包括地质、盐度侵入、工业和农业。污染程度（Cd）和重金属污染指数（_HPI ）的结果) 显示，28% 和 12% 的采样点存在高水平的重金属污染，这表明对人类健康问题的风险很高。发现 Cr 浓度比 As 和 Cd 浓度具有更高的致癌（癌症）风险。危害商 ( HQ ) 和危害指数 ( HI ) 分数表示各个采样点背景下的危害状态和可能的慢性影响。对于儿童和成人，44% 和 36% 的采样点具有较高的HI分数，表明当地人群存在长期健康风险的可能性。