Loi, Jia Xing and Chua, Adeline Seak May and Rabuni, Mohamad Fairus and Tan, Chee Keong and Lai, Sai Hin and Takemura, Yasuyuki and Syutsubo, Kazuaki (2022) Water quality assessment and pollution threat to safe water supply for three river basins in Malaysia. Science of the Total Environment, 832. ISSN 0048-9697, DOI https://doi.org/10.1016/j.scitotenv.2022.155067.
Full text not available from this repository.Abstract
Pollution in raw water poses increasing threats to safe water supply in many developing countries. Therefore, a comprehensive water quality assessment is essential to provide various stakeholders the information to deal with this problem. This study applies chemometrics to interpret a recent 10-year water quality data from three major river basins (Selangor River basin, Langat River basin, and Klang River basin) frequented by water supply disruptions in Selangor, Malaysia. We present the application of selected chemometrics approaches, namely agglomerative hierarchical cluster analysis, principal component analysis, factor analysis and Man-Kendall trend analysis. The results showed three spatial groups of monitoring stations with similar land use practices and pollution characteristics. Besides spatial differences, periodic variations were observed when similar pollutants exhibited different pollution loads during rainy and dry periods. We found that nitrogen species, total suspended solids, and dissolved solids represented the major pollution loads in the studied basins. The results further confirmed a significant increasing trend in ammonia pollution. Our study demonstrates how ammonia pollutant is likely to pose a threat to water supply and highlights the vulnerability of Selangor's water resource system to water pollution. The results of this study could facilitate decision making towards more holistic strategies, specifically, incorporating ammonia treatment facilities into the conventional water treatment plant will help achieve smooth water supply operations.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia [Grant No: FRGS/1/2020/TK0/UM/02/26], Universiti Malaya RU [Grant No: ST016-2021], Sumitomo Foundation [Grant No: 84011] |
| Uncontrolled Keywords: | Ammonia pollution; Chemometric; Nutrients; River water quality; Water disruption; Water pollution |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering Faculty of Engineering > Department of Civil Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 11 Oct 2023 01:48 |
| Last Modified: | 11 Oct 2023 01:48 |
| URI: | http://eprints.um.edu.my/id/eprint/42290 |
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