Water quality assessment in wet season of Langat River, Selangor, Malaysia
Water quality assessment is crucial for human and environmental health, but studies often face challenges with missing or incomplete data across seasons. This study evaluated the water quality of the Langat River in Selangor, Malaysia, during the wet season, focusing on Water Quality Index (WQI), wa...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2024
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| Online Access: | http://journalarticle.ukm.my/25881/ http://journalarticle.ukm.my/25881/1/37.pdf |
| _version_ | 1848816473438420992 |
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| author | Muhammad Amir Danish, Tay, Chia Chay Muhammad Izzat Nor Ma’arof, Girma T. Chala, Nurul Fariha Lokman, |
| author_facet | Muhammad Amir Danish, Tay, Chia Chay Muhammad Izzat Nor Ma’arof, Girma T. Chala, Nurul Fariha Lokman, |
| author_sort | Muhammad Amir Danish, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | Water quality assessment is crucial for human and environmental health, but studies often face challenges with missing or incomplete data across seasons. This study evaluated the water quality of the Langat River in Selangor, Malaysia, during the wet season, focusing on Water Quality Index (WQI), water classification, and trace metal concentrations. The WQI model, used by Malaysia’s Department of Environment (DOE), serves as a tool for assessing water quality. Water samples were taken from three sites: Kampung Hulu Kuala Pansoon (upstream), Pekan Bt 18 (midstream), and Nanding (downstream). Results showed significant water quality degradation from upstream to downstream, with WQI of 88.01 (Class II) at Kampung Hulu Kuala Pansoon, while both Pekan Bt 18 and Nanding fell into Class III with WQI of 76.50 and 71.68, respectively. While Class II indicates clean water, Class III reflects slightly polluted conditions based on the National Water Quality Standard (NWQS). Population density and land use types were identified as factors in this decline. Trace metal analysis as arsenic, chromium, cadmium, lead, aluminum, zinc, and manganese were present downstream. Although most levels were below NWQS limits, aluminum at 0.071mg/l exceeded permissible values, and manganese 0.09 mg/l detected to be close to the allowable threshold. The small dataset limits accuracy but adds insight to water assessment in wet season. Future studies need more sampling locations and hydrological data. In supporting SDG 6, continuous collaboration with state authorities aims to prevent degradation, ensure Class IIA compliance, and protect water supplies for Selangor’s Water Treatment Plants. |
| first_indexed | 2025-11-15T01:06:26Z |
| format | Article |
| id | oai:generic.eprints.org:25881 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:06:26Z |
| publishDate | 2024 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:258812025-09-24T09:14:23Z http://journalarticle.ukm.my/25881/ Water quality assessment in wet season of Langat River, Selangor, Malaysia Muhammad Amir Danish, Tay, Chia Chay Muhammad Izzat Nor Ma’arof, Girma T. Chala, Nurul Fariha Lokman, Water quality assessment is crucial for human and environmental health, but studies often face challenges with missing or incomplete data across seasons. This study evaluated the water quality of the Langat River in Selangor, Malaysia, during the wet season, focusing on Water Quality Index (WQI), water classification, and trace metal concentrations. The WQI model, used by Malaysia’s Department of Environment (DOE), serves as a tool for assessing water quality. Water samples were taken from three sites: Kampung Hulu Kuala Pansoon (upstream), Pekan Bt 18 (midstream), and Nanding (downstream). Results showed significant water quality degradation from upstream to downstream, with WQI of 88.01 (Class II) at Kampung Hulu Kuala Pansoon, while both Pekan Bt 18 and Nanding fell into Class III with WQI of 76.50 and 71.68, respectively. While Class II indicates clean water, Class III reflects slightly polluted conditions based on the National Water Quality Standard (NWQS). Population density and land use types were identified as factors in this decline. Trace metal analysis as arsenic, chromium, cadmium, lead, aluminum, zinc, and manganese were present downstream. Although most levels were below NWQS limits, aluminum at 0.071mg/l exceeded permissible values, and manganese 0.09 mg/l detected to be close to the allowable threshold. The small dataset limits accuracy but adds insight to water assessment in wet season. Future studies need more sampling locations and hydrological data. In supporting SDG 6, continuous collaboration with state authorities aims to prevent degradation, ensure Class IIA compliance, and protect water supplies for Selangor’s Water Treatment Plants. Penerbit Universiti Kebangsaan Malaysia 2024-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/25881/1/37.pdf Muhammad Amir Danish, and Tay, Chia Chay and Muhammad Izzat Nor Ma’arof, and Girma T. Chala, and Nurul Fariha Lokman, (2024) Water quality assessment in wet season of Langat River, Selangor, Malaysia. Jurnal Kejuruteraan, 36 (6). pp. 2683-2692. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-3606-2024/ |
| spellingShingle | Muhammad Amir Danish, Tay, Chia Chay Muhammad Izzat Nor Ma’arof, Girma T. Chala, Nurul Fariha Lokman, Water quality assessment in wet season of Langat River, Selangor, Malaysia |
| title | Water quality assessment in wet season of Langat River, Selangor, Malaysia |
| title_full | Water quality assessment in wet season of Langat River, Selangor, Malaysia |
| title_fullStr | Water quality assessment in wet season of Langat River, Selangor, Malaysia |
| title_full_unstemmed | Water quality assessment in wet season of Langat River, Selangor, Malaysia |
| title_short | Water quality assessment in wet season of Langat River, Selangor, Malaysia |
| title_sort | water quality assessment in wet season of langat river, selangor, malaysia |
| url | http://journalarticle.ukm.my/25881/ http://journalarticle.ukm.my/25881/ http://journalarticle.ukm.my/25881/1/37.pdf |