干旱区生态环境知识资源中心(Arid): Groundwater quality index based on PCA: Wadi El-Natrun, Egypt

Arid

DOI	10.1016/j.jafrearsci.2020.103964
	Groundwater quality index based on PCA: Wadi El-Natrun, Egypt
	Abdelaziz, Shokry; Gad, Mohamed, I; El Tahan, Abdel Hamid M. H.
通讯作者	El Tahan, AHMH (corresponding author), Arab Acad Sci Technol & Maritime Transport, Cairo Branch, AASTMT, Construct & Bldg Engn Dept,Coll Engn & Technol, Cairo, Egypt.
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2020
卷号	172
英文摘要	Groundwater is one of the water's main sources for domestic, agricultural, and industrial uses in arid and semiarid regions such as the Egyptian western desert. Extensive extraction of the groundwater may lead to the extraordinary decline of the groundwater level coupled with salinization and quality deterioration. This paper aims to investigate the quality of drinking and irrigation water in 47 pumping wells distributed in Wadi El-Natrun, Egypt. Twenty-three hydrochemical parameters that reflected the complexity of the water quality were considered and evaluated. Hierarchical Clustering Analysis (HCA) and Principal Component Analysis (PCA) were sequentially applied to produce potential clusters/groups (groundwater quality classes), classify the groundwater quality data into meaningful classes, and identify the most critical parameters in the classification. HCA produces four major clusters. Electrical conductivity has a high correlation with the Total Dissolved solids TDS, Sodium, Calcium, Magnesium, Sulfate, and Strontium. PCA deals with highly correlated parameters and reduces them to a few uncorrelated principal components so that the dimensionality of the transformed data is reduced. Hence, the first three principal components were used to group groundwater quality parameters in comparison to HCA. The grouping provided by the HCA strongly reflects the effect of the first three principal components, showing that the two analyses gave comparable results. In fact, the study proposes a modified Ground Water Quality Index (GWQI) based on the weighted GWQI developed by Tiwari and Mishra (1985). The weights of the studied parameters were estimated based on the PCA where only seven PCs covering about 80.5% of total variance, were used. It has been founded that, the resulting weights match well with the classification performed by the two described methods. The proposed method was used to evaluate the suitability of the water for drinking and agricultural uses based on both WHO and FAO standards. Among the 47 studied wells, only five wells could be considered suitable and good for drinking and 18 wells for irrigation. Also, the water samples are characterized by a high concentration of Sodium, Sulfate, Chloride, and Strontium in addition to TDS.
英文关键词	Groundwater Water quality index PCA HCA Classification Wadi El-Natrun Egypt
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000590387100012
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/348960
作者单位	[Abdelaziz, Shokry] King Abdulaziz Univ, Fac Engn, Civil Engn Dept, Rabigh, Saudi Arabia; [Abdelaziz, Shokry] Helwan Univ, Fac Engn, Civil Engn Dept, El Mataria, Egypt; [Gad, Mohamed, I] Desert Res Ctr, Hydrol Div, Cairo, Egypt; [El Tahan, Abdel Hamid M. H.] Arab Acad Sci Technol & Maritime Transport, Cairo Branch, AASTMT, Construct & Bldg Engn Dept,Coll Engn & Technol, Cairo, Egypt
推荐引用方式 GB/T 7714	Abdelaziz, Shokry,Gad, Mohamed, I,El Tahan, Abdel Hamid M. H.. Groundwater quality index based on PCA: Wadi El-Natrun, Egypt[J],2020,172.
APA	Abdelaziz, Shokry,Gad, Mohamed, I,&El Tahan, Abdel Hamid M. H..(2020).Groundwater quality index based on PCA: Wadi El-Natrun, Egypt.JOURNAL OF AFRICAN EARTH SCIENCES,172.
MLA	Abdelaziz, Shokry,et al."Groundwater quality index based on PCA: Wadi El-Natrun, Egypt".JOURNAL OF AFRICAN EARTH SCIENCES 172(2020).