...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Monitoring and Assessment >Appraising drinking water quality in Ikem rural area (Nigeria) based on chemometrics and multiple indexical methods
【24h】

Appraising drinking water quality in Ikem rural area (Nigeria) based on chemometrics and multiple indexical methods

机译：基于化学计量学和多种分子方法，在Ikem农村地区（尼日利亚）评估饮用水质量

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The continuous deterioration of drinking water quality supplies by several anthropogenic activities is a serious global challenge in recent times. In this current study, the drinking water quality of Ikem rural agricultural area (southeastern Nigeria) was assessed using chemometrics and multiple indexical methods. Twenty-five groundwater samples were collected from hand-dug wells and analyzed for physicochemical parameters such as pH, major ions, and heavy metals. The pH of the samples (which ranged between 5.2 and 6.7) indicated that waters were slightly acidic. Cations and anions (except for phosphate) were within their respective standard limits. Except for Mn, heavy metals were also found to be below their maximum allowable limits. Factor analysis identified both geogenic processes and anthropogenic inputs as possible origins of the analyzed physicochemical parameters. Modified heavy metal index, geoaccumulation index, and overall index of pollution revealed that all the hand-dug wells were in excellent condition, and hence safe for drinking purposes. However, pollution load index, water quality index (WQI), and entropy-weighted water quality index (EWQI) revealed that some wells (about 8-12%) were slightly contaminated, and hence are placed in good water category. A hierarchical cluster analysis (HCA) was performed based on the integration of the WQI and EWQI results. The HCA revealed two major quality categories of the samples. While the first cluster comprises of samples classified as excellent drinking water by both WQI and EWQI models, the second cluster comprises of about 12% samples which were identified as good water by either the WQI or EWQI.
机译：几次人为活动的饮用水质量供应的连续恶化是一个严重的全球挑战。在本前研究中，使用化学计量学和多种分子方法评估Ikem农村农业区（尼日利亚东南部）的饮用水质量。从手挖井收集二十五个地下水样品，并分析了物理化学参数，如pH，主要离子和重金属。样品的pH值（范围为5.2和6.7）表明水略微酸性。阳离子和阴离子（除磷除外）在各自的标准限制范围内。除Mn外，还发现重金属低于其最大允许限制。因子分析确定了因分析的物理化学参数的可能起源的生成过程和人为输入。改进的重金属指数，地理累积指数和整体污染指标显示，所有的手挖井都处于良好状态，因此安全的饮用目的。然而，污染载荷指数，水质指数（WQI）和熵加水质指数（EWQI）透露，一些孔（约8-12％）略微污染，因此放置在良好的水域中。基于WQI和EWQI结果的集成执行分层群集分析（HCA）。 HCA揭示了两种主要品质类别。虽然第一簇由WQI和EWQI模型的分类为优异的饮用水的样品，但第二簇包含约12％的样品，其通过WQI或EWQI鉴定为好的水。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号