Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines
Fifty-one surface sediment samples from offshore Sabah and Sarawak were collected from the two cruises of the Marine Vessel Southeast Asian Fisheries Development Centre (MV SEAFDEC) before and after the northeast monsoon. The sediments were analyzed for heavy metal contents to determine the effects...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis
2007
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/52226/1/Heavy%20metal%20distribution%20of%20the%20South%20China%20Sea%20continental%20shelf%20sediments%20off%20Sabah%20and%20Sarawak%20coastlines.pdf |
| _version_ | 1825930684090286080 |
|---|---|
| author | Abdullah, Nor Antonina Mohamed Shazili, Noor Azhar Husain, Mohd Lokman Darus, Siti Zauyah Yunus, Kamaruzzaman Ahmad, Ahmad Shamsuddin |
| author_facet | Abdullah, Nor Antonina Mohamed Shazili, Noor Azhar Husain, Mohd Lokman Darus, Siti Zauyah Yunus, Kamaruzzaman Ahmad, Ahmad Shamsuddin |
| author_sort | Abdullah, Nor Antonina |
| collection | UPM |
| description | Fifty-one surface sediment samples from offshore Sabah and Sarawak were collected from the two cruises of the Marine Vessel Southeast Asian Fisheries Development Centre (MV SEAFDEC) before and after the northeast monsoon. The sediments were analyzed for heavy metal contents to determine the effects of monsoon seasons and spatial patterns of distribution. The contents of heavy metals were measured from the 63 μm fraction of the dried sediments and analyzed using an Atomic Absorption Spectrophotometer. The heavy metals studied were Al, Fe, Cr, Cu, Zn, Pb and Mn. Results showed that some metals were in concentrations lower than the average Earth's crust. The lower or higher-than-normal values of some of the heavy metals studied can be attributed to the intensive weathering in the study area, mineralogy, effect of the monsoon and the Rajang River. Furthermore, normalization was done using Al as normalizer to determine whether the high levels of Pb were due to anthropogenic input or not. It was found that the values were higher but not necessarily an indication of inputs from human activities as high levels were also found far from the coast. This may be attributed to input of particulates from the Rajang River and possibly movement of bottom sediments. |
| first_indexed | 2024-03-06T09:15:17Z |
| format | Article |
| id | upm.eprints-52226 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:15:17Z |
| publishDate | 2007 |
| publisher | Taylor & Francis |
| record_format | dspace |
| spelling | upm.eprints-522262017-06-05T05:23:58Z http://psasir.upm.edu.my/id/eprint/52226/ Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines Abdullah, Nor Antonina Mohamed Shazili, Noor Azhar Husain, Mohd Lokman Darus, Siti Zauyah Yunus, Kamaruzzaman Ahmad, Ahmad Shamsuddin Fifty-one surface sediment samples from offshore Sabah and Sarawak were collected from the two cruises of the Marine Vessel Southeast Asian Fisheries Development Centre (MV SEAFDEC) before and after the northeast monsoon. The sediments were analyzed for heavy metal contents to determine the effects of monsoon seasons and spatial patterns of distribution. The contents of heavy metals were measured from the 63 μm fraction of the dried sediments and analyzed using an Atomic Absorption Spectrophotometer. The heavy metals studied were Al, Fe, Cr, Cu, Zn, Pb and Mn. Results showed that some metals were in concentrations lower than the average Earth's crust. The lower or higher-than-normal values of some of the heavy metals studied can be attributed to the intensive weathering in the study area, mineralogy, effect of the monsoon and the Rajang River. Furthermore, normalization was done using Al as normalizer to determine whether the high levels of Pb were due to anthropogenic input or not. It was found that the values were higher but not necessarily an indication of inputs from human activities as high levels were also found far from the coast. This may be attributed to input of particulates from the Rajang River and possibly movement of bottom sediments. Taylor & Francis 2007 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/52226/1/Heavy%20metal%20distribution%20of%20the%20South%20China%20Sea%20continental%20shelf%20sediments%20off%20Sabah%20and%20Sarawak%20coastlines.pdf Abdullah, Nor Antonina and Mohamed Shazili, Noor Azhar and Husain, Mohd Lokman and Darus, Siti Zauyah and Yunus, Kamaruzzaman and Ahmad, Ahmad Shamsuddin (2007) Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines. Aquatic Ecosystem Health & Management, 10 (1). pp. 57-67. ISSN 1463-4988; ESSN: 1539-4077 http://www.tandfonline.com/doi/abs/10.1080/14634980701199364?src=recsys&journalCode=uaem20 10.1080/14634980701199364 |
| spellingShingle | Abdullah, Nor Antonina Mohamed Shazili, Noor Azhar Husain, Mohd Lokman Darus, Siti Zauyah Yunus, Kamaruzzaman Ahmad, Ahmad Shamsuddin Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines |
| title | Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines |
| title_full | Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines |
| title_fullStr | Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines |
| title_full_unstemmed | Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines |
| title_short | Heavy metal distribution of the South China Sea continental shelf sediments off Sabah and Sarawak coastlines |
| title_sort | heavy metal distribution of the south china sea continental shelf sediments off sabah and sarawak coastlines |
| url | http://psasir.upm.edu.my/id/eprint/52226/1/Heavy%20metal%20distribution%20of%20the%20South%20China%20Sea%20continental%20shelf%20sediments%20off%20Sabah%20and%20Sarawak%20coastlines.pdf |
| work_keys_str_mv | AT abdullahnorantonina heavymetaldistributionofthesouthchinaseacontinentalshelfsedimentsoffsabahandsarawakcoastlines AT mohamedshazilinoorazhar heavymetaldistributionofthesouthchinaseacontinentalshelfsedimentsoffsabahandsarawakcoastlines AT husainmohdlokman heavymetaldistributionofthesouthchinaseacontinentalshelfsedimentsoffsabahandsarawakcoastlines AT darussitizauyah heavymetaldistributionofthesouthchinaseacontinentalshelfsedimentsoffsabahandsarawakcoastlines AT yunuskamaruzzaman heavymetaldistributionofthesouthchinaseacontinentalshelfsedimentsoffsabahandsarawakcoastlines AT ahmadahmadshamsuddin heavymetaldistributionofthesouthchinaseacontinentalshelfsedimentsoffsabahandsarawakcoastlines |