Title: Assessment of spatial and temporal variations in Qattinah Lake using statistical analysis

Authors: Lina Khouri; Ruba Dahham Alsaeed; Bassam Alaji

Addresses: Department of Environmental and Sanitary Engineering, Faculty of Civil Engineering, Damascus University, Damascus, Syria ' Faculty of Engineering, Al-Wataniya Private University, Hama, Syria ' Department of Sanitary and Environmental Engineering, Faculty of Civil Engineering, Damascus University, Damascus, Syria

Abstract: The temporal and spatial variation of 18 water quality indicators were studied in this study over a period of 16 years in seven stations along Qattinah Lake; to develop water quality standards and improve the evaluation of the water suitability for various uses. To determine the indicators correlation in order to classify different pollution levels cluster analysis was used, it gave two clusters. Discriminant analysis was applied to classify the indicators based on their similar characteristics. It led to a significant decrease in the number of variables needed to determine the type of pollution. The best results were for temporal changes, it gave four basic variables that have a significant impact on water quality: (T, COD, PO₄, NO₃) with a variance ratio of 100% of the total variance which is considered an excellent ratio for determining water quality.

Keywords: discriminant analysis; DA; multivariate statistical; spatial variation; temporal variation; water quality.

DOI: 10.1504/IJMRI.2025.144876

International Journal of Masonry Research and Innovation, 2025 Vol.10 No.2, pp.145 - 157

Received: 19 Sep 2023
Accepted: 09 Nov 2023
Published online: 06 Mar 2025 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article