Water quality index (WQI) is used for aggregate assessment of water pollution level. The method is used in the United States of America (USA) and some other countries including Vietnam, but it has several limitations: the weight of a parameter is subjectively defined by the experts' criteria...
模型准确性排名为WQIS > WQIW > WQIL。 改进的WQI模型: 该研究的改进WQI模型,融合了机器学习、组合权重和新的聚合函数,有效降低了不确定性并提高了准确性。建议使用WQIS模型来评估较差水质,而WQIW模型则适用于评估较好水质。 水质评估: 利用优化的WQI模型对朝柏河流域进行的评估显示,该流域被分类为二类水,表明...
由于河流是人类的主要淡水来源,所以定期评估河流水质十分重要,本文采用水质系数(Water Quality Index, WQI)来评估河流水质。 文章简介 本文的研究区域位于勒克瑙,它位于北纬26°30'-27°10'和东经80°30'-81°13'之间,属亚热带湿润气候,4 月至6月为夏季炎热,12月至次年2月为冬季。其中,贡题河是一条重要的供水...
Water quality index (WQI) is a single value numerical expression to evaluate the quality of a given water body at a particular position and time. The present study on WQI is based on the analysis of water samples collected from the Damodar River (after confluence of Tamla Nullah (canal)) ...
Water Quality Index (WQI) is a one of major tool to solve the problems of data management and to evaluate success and failures in management strategies for improving water quality. A WQI developed by the Canadian Council of Ministers of the Environment (CCME) which provides a convenient mean ...
Evaluation of the surface water quality using global water quality index (WQI) models: perspective of river water pollution Md. Habibur Rahman Bejoy Khan, Amimul Ahsan, M. Imteaz, Md. Shafiquzzaman & Nadhir Al-Ansari Scientific Reports volume 13, Article number: 20454 (2023) Cite th...
Study of water quality assessment using water quality index (wqi) in few water samples of karnataka and kerala statesDivyaK.S and Mahadeva Murthy
The water quality index (WQI) has been used to identify threats to water quality and to support better water resource management. This study combines a machine learning algorithm, WQI, and remote sensing spectral indices (difference index, DI; ratio inde
water quality index in Nfifikh watershed in Morocco. Their RMSE and R2values were 1.88 and 0.5 for KR, and 6 (mmolc l-1) and 0.6 for SAR. Based on Figs.4and5and Table4, which confirm the results from Fig.2, the SW model is superior for prediction of IWQI. SW model reported ...
Commonly, WQI models involve four consecutive stages; these are (1) selection of the water quality parameters, (2) generation of sub-indices for each parameter (3) calculation of the parameter weighting values, and (4) aggregation of sub-indices to compute the overall water quality index. ...