Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan
Since Bakun Hydroelectric Reservoir was filled, there has not been any published literature on its water quality. A previous study conducted during its filling stage showed that the DO level dropped very rapidly and the water was turbid. Since water quality was expected to improve over time, this s...
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| Format: | Article |
| Language: | English |
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Universiti Teknologi MARA, Pulau Pinang
2015
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| Online Access: | https://ir.uitm.edu.my/id/eprint/11990/ |
| _version_ | 1848803090714591232 |
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| author | Lee, Nyanti Ling, Teck-Yee Muan, Theresa |
| author_facet | Lee, Nyanti Ling, Teck-Yee Muan, Theresa |
| author_sort | Lee, Nyanti |
| building | UiTM Institutional Repository |
| collection | Online Access |
| description | Since Bakun Hydroelectric Reservoir was filled, there has not been any published literature on its water quality. A previous study conducted during its filling stage showed that the DO level dropped very rapidly and the water was
turbid. Since water quality was expected to improve over time, this study was carried out. Six stations and 3 depths at each station were investigated. Results show that dissolved oxygen at 0.5 m depth ranged from 6.25 to 7.02 mg/L but the water was anoxic at 15 m and 30 m depths. pH at 0.5 m depth in the reservoir ranged from 7.37 to 7.73 and decreased with depth to acidic condition. In the
reservoir, turbidity at the subsurface were 0 NTU but at 15 m depth, it ranged from 19.5-105.4 NTU. BOD5 were higher at 15 m and 30 m than 0.5 m depth. There was some improvement of water quality for stations in the reservoir compared to the previous study, especially in terms of pH and DO, but turbidity was still high at deeper regions. Stations in the Murum River and its downstream showed extremely high turbidity attributed to the construction of the Murum Dam. Thus, the river was not suitable for sensitive aquatic organisms. |
| first_indexed | 2025-11-14T21:33:43Z |
| format | Article |
| id | uitm-11990 |
| institution | Universiti Teknologi MARA |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T21:33:43Z |
| publishDate | 2015 |
| publisher | Universiti Teknologi MARA, Pulau Pinang |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | uitm-119902016-07-26T17:01:07Z https://ir.uitm.edu.my/id/eprint/11990/ Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan Lee, Nyanti Ling, Teck-Yee Muan, Theresa Malaysia Dams. Barrages Qualities of water. Water quality Since Bakun Hydroelectric Reservoir was filled, there has not been any published literature on its water quality. A previous study conducted during its filling stage showed that the DO level dropped very rapidly and the water was turbid. Since water quality was expected to improve over time, this study was carried out. Six stations and 3 depths at each station were investigated. Results show that dissolved oxygen at 0.5 m depth ranged from 6.25 to 7.02 mg/L but the water was anoxic at 15 m and 30 m depths. pH at 0.5 m depth in the reservoir ranged from 7.37 to 7.73 and decreased with depth to acidic condition. In the reservoir, turbidity at the subsurface were 0 NTU but at 15 m depth, it ranged from 19.5-105.4 NTU. BOD5 were higher at 15 m and 30 m than 0.5 m depth. There was some improvement of water quality for stations in the reservoir compared to the previous study, especially in terms of pH and DO, but turbidity was still high at deeper regions. Stations in the Murum River and its downstream showed extremely high turbidity attributed to the construction of the Murum Dam. Thus, the river was not suitable for sensitive aquatic organisms. Universiti Teknologi MARA, Pulau Pinang 2015 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/11990/1/AJ_LEE%20NYANTI%20EAJ%2015.pdf Lee, Nyanti and Ling, Teck-Yee and Muan, Theresa (2015) Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan. (2015) Esteem Academic Journal <https://ir.uitm.edu.my/view/publication/Esteem_Academic_Journal.html>, 11 (1). pp. 81-88. ISSN 1675-7939 |
| spellingShingle | Malaysia Dams. Barrages Qualities of water. Water quality Lee, Nyanti Ling, Teck-Yee Muan, Theresa Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan |
| title | Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan |
| title_full | Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan |
| title_fullStr | Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan |
| title_full_unstemmed | Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan |
| title_short | Water quality of Bakun Hydroelectric Dam Reservoir, Sarawak, Malaysia, during the construction of Murum dam / Lee Nyanti, Teck-Yee Ling and Theresa Muan |
| title_sort | water quality of bakun hydroelectric dam reservoir, sarawak, malaysia, during the construction of murum dam / lee nyanti, teck-yee ling and theresa muan |
| topic | Malaysia Dams. Barrages Qualities of water. Water quality |
| url | https://ir.uitm.edu.my/id/eprint/11990/ |