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Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia

The current study is one of the first studies evaluating the levels of linear alkylbenzenes (LABs) in surface sediments of Sarawak and Sembulan rivers which are located in the east coast of Malaysia. The LABs, which are molecular tracers of sewage contamination, were measured in 15 surface sediment...

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Main Authors: Magam, Sami Muhsen, Zakaria, Mohamad Pauzi, Halimoon, Normala, Masood, Najat, Alsalahi, Murad Ali
Format: Article
Published: Thai Society of Higher Education Institutes on Environment 2012
Online Access:http://psasir.upm.edu.my/id/eprint/44360/
https://tshe.org/ea/ea_jan2012.html
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spelling my.upm.eprints.443602023-12-24T17:21:13Z http://psasir.upm.edu.my/id/eprint/44360/ Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia Magam, Sami Muhsen Zakaria, Mohamad Pauzi Halimoon, Normala Masood, Najat Alsalahi, Murad Ali The current study is one of the first studies evaluating the levels of linear alkylbenzenes (LABs) in surface sediments of Sarawak and Sembulan rivers which are located in the east coast of Malaysia. The LABs, which are molecular tracers of sewage contamination, were measured in 15 surface sediment samples collected from these rivers. The samples were extracted, fractioned and analyzed by gas chromatography mass spectrometry (GC-MS). The findings revealed that the concentrations of ΣLABs ranged from 156.47 to 7386.19 ng/g dry weight (dw) in the sediments of Sarawak River and from 643.18 to 5567.12 ng/g dw in the sediments of Sembulan River. The highest LABs levels were detected in the sediments collected from the sampling location SS9 in Sembulan River whereas the lowest levels were observed in the SS1 sampling location in Sarawak River. The I/E ratios(ratio of internal to external isomers of LABs) for Sarawak River sediments ranged from 0.52 to 0.98 while for Sembulan River they fell within the range 0.87-1.79. The I/E ratio at the sampling station SS4 was much lower than the I/E ratios at the other stations, thus indicating that the wastewater discharged into Sarawak River from the areas surrounding station SS4 was poorly treated. Thai Society of Higher Education Institutes on Environment 2012 Article PeerReviewed Magam, Sami Muhsen and Zakaria, Mohamad Pauzi and Halimoon, Normala and Masood, Najat and Alsalahi, Murad Ali (2012) Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia. EnvironmentAsia, 5 (1). pp. 48-55. ISSN 1906-1714 https://tshe.org/ea/ea_jan2012.html 10.14456/ea.2012.6
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description The current study is one of the first studies evaluating the levels of linear alkylbenzenes (LABs) in surface sediments of Sarawak and Sembulan rivers which are located in the east coast of Malaysia. The LABs, which are molecular tracers of sewage contamination, were measured in 15 surface sediment samples collected from these rivers. The samples were extracted, fractioned and analyzed by gas chromatography mass spectrometry (GC-MS). The findings revealed that the concentrations of ΣLABs ranged from 156.47 to 7386.19 ng/g dry weight (dw) in the sediments of Sarawak River and from 643.18 to 5567.12 ng/g dw in the sediments of Sembulan River. The highest LABs levels were detected in the sediments collected from the sampling location SS9 in Sembulan River whereas the lowest levels were observed in the SS1 sampling location in Sarawak River. The I/E ratios(ratio of internal to external isomers of LABs) for Sarawak River sediments ranged from 0.52 to 0.98 while for Sembulan River they fell within the range 0.87-1.79. The I/E ratio at the sampling station SS4 was much lower than the I/E ratios at the other stations, thus indicating that the wastewater discharged into Sarawak River from the areas surrounding station SS4 was poorly treated.
format Article
author Magam, Sami Muhsen
Zakaria, Mohamad Pauzi
Halimoon, Normala
Masood, Najat
Alsalahi, Murad Ali
spellingShingle Magam, Sami Muhsen
Zakaria, Mohamad Pauzi
Halimoon, Normala
Masood, Najat
Alsalahi, Murad Ali
Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia
author_facet Magam, Sami Muhsen
Zakaria, Mohamad Pauzi
Halimoon, Normala
Masood, Najat
Alsalahi, Murad Ali
author_sort Magam, Sami Muhsen
title Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia
title_short Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia
title_full Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia
title_fullStr Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia
title_full_unstemmed Distribution of linear alkylbenzenes (LABs) in sediments of Sarawak and Sembulan Rivers, Malaysia
title_sort distribution of linear alkylbenzenes (labs) in sediments of sarawak and sembulan rivers, malaysia
publisher Thai Society of Higher Education Institutes on Environment
publishDate 2012
url http://psasir.upm.edu.my/id/eprint/44360/
https://tshe.org/ea/ea_jan2012.html
_version_ 1787137199565701120
score 13.211869

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