Assessment of Heavy Metals in Water, Sediment, and Fishes of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia
Bakun Hydroelectric Dam in Sarawak is one of the world highest concrete rock filled dams.This paper reports the heavy metals concentrations in water, sediment, and fishes of Bakun Dam.Water and sediment samples were collected from11 stations and 6 fish species were caught. The samples were digeste...
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| Format: | Article |
| Language: | English |
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Hindawi Publishing Corporation
2016
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| Online Access: | http://ir.unimas.my/id/eprint/11377/ http://ir.unimas.my/id/eprint/11377/1/Assessment%20of%20Heavy%20Metals%20in%20Water%2C%20Sediment%20%28abstract%29.pdf |
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| author | Siong, Fong Sim Teck, Yee Ling Lee, Nyanti Norliza, Gerunsin Yiew, Ee Wong Liang, Ping Kho |
| author_facet | Siong, Fong Sim Teck, Yee Ling Lee, Nyanti Norliza, Gerunsin Yiew, Ee Wong Liang, Ping Kho |
| author_sort | Siong, Fong Sim |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Bakun Hydroelectric Dam in Sarawak is one of the world highest concrete rock filled dams.This paper reports the heavy metals
concentrations in water, sediment, and fishes of Bakun Dam.Water and sediment samples were collected from11 stations and 6 fish
species were caught. The samples were digested with open acid digestion and the metals contents were analysed using an atomic
absorption spectrophotometer and mercury analyser. The method was validated based on certified reference materials. A higher
concentration of Fe andMn was detected in downstreamwater with significant longitudinal variation. Cu, Zn, andHg were present
in trace amount. All elements analysed were consistently found in sediment with no risk of contamination. For fish, Hemibagrus
planiceps was characterised by higher affinity for Hg accumulation. The concentrations detected in all fish species were within the
permissible guideline of 0.5mg/kg. The health risk assessment suggested that Barbonymus schwanenfeldii, Puntioplites waandersii, Cyclocheilichthys apogon, and Hemibagrus planiceps were characterised by hazard index > 1 implying possible adverse effects.The amount of fish recommended for adults and children was in the range of 500–775 g/week and 33–135 g/week, respectively. |
| first_indexed | 2025-11-15T06:32:40Z |
| format | Article |
| id | unimas-11377 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:32:40Z |
| publishDate | 2016 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-113772016-10-21T01:18:02Z http://ir.unimas.my/id/eprint/11377/ Assessment of Heavy Metals in Water, Sediment, and Fishes of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia Siong, Fong Sim Teck, Yee Ling Lee, Nyanti Norliza, Gerunsin Yiew, Ee Wong Liang, Ping Kho GE Environmental Sciences Bakun Hydroelectric Dam in Sarawak is one of the world highest concrete rock filled dams.This paper reports the heavy metals concentrations in water, sediment, and fishes of Bakun Dam.Water and sediment samples were collected from11 stations and 6 fish species were caught. The samples were digested with open acid digestion and the metals contents were analysed using an atomic absorption spectrophotometer and mercury analyser. The method was validated based on certified reference materials. A higher concentration of Fe andMn was detected in downstreamwater with significant longitudinal variation. Cu, Zn, andHg were present in trace amount. All elements analysed were consistently found in sediment with no risk of contamination. For fish, Hemibagrus planiceps was characterised by higher affinity for Hg accumulation. The concentrations detected in all fish species were within the permissible guideline of 0.5mg/kg. The health risk assessment suggested that Barbonymus schwanenfeldii, Puntioplites waandersii, Cyclocheilichthys apogon, and Hemibagrus planiceps were characterised by hazard index > 1 implying possible adverse effects.The amount of fish recommended for adults and children was in the range of 500–775 g/week and 33–135 g/week, respectively. Hindawi Publishing Corporation 2016 Article PeerReviewed text en http://ir.unimas.my/id/eprint/11377/1/Assessment%20of%20Heavy%20Metals%20in%20Water%2C%20Sediment%20%28abstract%29.pdf Siong, Fong Sim and Teck, Yee Ling and Lee, Nyanti and Norliza, Gerunsin and Yiew, Ee Wong and Liang, Ping Kho (2016) Assessment of Heavy Metals in Water, Sediment, and Fishes of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia. Journal of Chemistry, 2016. ISSN 2090-9071 https://www.scopus.com/record/display.uri?eid=2-s2.0-84960968439&origin=inward&txGid=0 http://dx.doi.org/10.1155/2016/8923183 |
| spellingShingle | GE Environmental Sciences Siong, Fong Sim Teck, Yee Ling Lee, Nyanti Norliza, Gerunsin Yiew, Ee Wong Liang, Ping Kho Assessment of Heavy Metals in Water, Sediment, and Fishes of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia |
| title | Assessment of Heavy Metals in Water, Sediment, and Fishes
of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia |
| title_full | Assessment of Heavy Metals in Water, Sediment, and Fishes
of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia |
| title_fullStr | Assessment of Heavy Metals in Water, Sediment, and Fishes
of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia |
| title_full_unstemmed | Assessment of Heavy Metals in Water, Sediment, and Fishes
of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia |
| title_short | Assessment of Heavy Metals in Water, Sediment, and Fishes
of a Large Tropical Hydroelectric Dam in Sarawak, Malaysia |
| title_sort | assessment of heavy metals in water, sediment, and fishes
of a large tropical hydroelectric dam in sarawak, malaysia |
| topic | GE Environmental Sciences |
| url | http://ir.unimas.my/id/eprint/11377/ http://ir.unimas.my/id/eprint/11377/ http://ir.unimas.my/id/eprint/11377/ http://ir.unimas.my/id/eprint/11377/1/Assessment%20of%20Heavy%20Metals%20in%20Water%2C%20Sediment%20%28abstract%29.pdf |