Sumber dan komposisi hidrokarbon aromatik polisiklik dalam sedimen sungai dan muara di sepanjang persekitaran Kuala Kedah, Malaysia

Translated title of the contribution: Sources and composition of polycyclic aromatic hydrocarbons in the river and estuarial sediment along the vicinity of Kuala Kedah, Malaysia

Terence Ricky Chiu, Masni Mohd Ali

Research output: Contribution to journalArticle

Abstract

Sixteen surface sediment samples were taken along the vicinity of Kuala Kedah, especially the Kedah River and estuary areas. The surface sediments taken were identified and quantified by gas chromatography coupled with mass spectrometry (GC-MS). The knowledge and information gained from the study show that the concentration of individual Polycyclic Aromatic Hydrocarbon (PAH) compounds was known to be between 1.09 ng/g to 59.01 ng/g dry weight sediment. The river mouth sampling point was found to have the highest total PAHs concentration of 226.03 ng/g sediment dry weight. On the contrary, the S2 sampling point was found to have the lowest concentration of total PAHs with 7.20 ng/g sediment dry weight. Among all the incorporated sampling points, the highest number of an individual compound of PAHs found was that of benzo[ghi]perylene. On the other hand, acenaphthylene, which is another individual compound of PAHs, showed the lowest concentration. Apart from the estimation of the total and individual PAHs concentrations, the molecular indices and the Low Molecular Weight (LMW)/High Molecular Weight (HMW) of phenanthrene/anthracene and fluoranthene/pyrene were analyzed in this study to establish whether the sediment sources were pyrolytic or pyrogenic based. Lastly, based on the study of the sources of the PAHs, it was established that the study site’s sources consisted of mixed PAHs sources with a dominance of pyrogenic sources of fossil fuel combustion, vehicle engine combustion, open wood combustion and charcoal combustion; which were the main causes that contributed towards the diversity of sources in the sediments along the vicinity of Kuala Kedah river and estuary areas.

Original languageMalay
Pages (from-to)1001-1008
Number of pages8
JournalMalaysian Journal of Analytical Sciences
Volume23
Issue number6
DOIs
Publication statusPublished - 1 Jan 2019

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Polycyclic Aromatic Hydrocarbons
Polycyclic aromatic hydrocarbons
Sediments
Rivers
Chemical analysis
Estuaries
Sampling
Molecular weight
Charcoal
Fossil fuels
Gas chromatography
Mass spectrometry
Wood
Engines

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

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title = "Sumber dan komposisi hidrokarbon aromatik polisiklik dalam sedimen sungai dan muara di sepanjang persekitaran Kuala Kedah, Malaysia",
abstract = "Sixteen surface sediment samples were taken along the vicinity of Kuala Kedah, especially the Kedah River and estuary areas. The surface sediments taken were identified and quantified by gas chromatography coupled with mass spectrometry (GC-MS). The knowledge and information gained from the study show that the concentration of individual Polycyclic Aromatic Hydrocarbon (PAH) compounds was known to be between 1.09 ng/g to 59.01 ng/g dry weight sediment. The river mouth sampling point was found to have the highest total PAHs concentration of 226.03 ng/g sediment dry weight. On the contrary, the S2 sampling point was found to have the lowest concentration of total PAHs with 7.20 ng/g sediment dry weight. Among all the incorporated sampling points, the highest number of an individual compound of PAHs found was that of benzo[ghi]perylene. On the other hand, acenaphthylene, which is another individual compound of PAHs, showed the lowest concentration. Apart from the estimation of the total and individual PAHs concentrations, the molecular indices and the Low Molecular Weight (LMW)/High Molecular Weight (HMW) of phenanthrene/anthracene and fluoranthene/pyrene were analyzed in this study to establish whether the sediment sources were pyrolytic or pyrogenic based. Lastly, based on the study of the sources of the PAHs, it was established that the study site’s sources consisted of mixed PAHs sources with a dominance of pyrogenic sources of fossil fuel combustion, vehicle engine combustion, open wood combustion and charcoal combustion; which were the main causes that contributed towards the diversity of sources in the sediments along the vicinity of Kuala Kedah river and estuary areas.",
keywords = "Molecular indices, PAHs, Pyrogenic, Pyrolytic, Surface sediments",
author = "Chiu, {Terence Ricky} and Ali, {Masni Mohd}",
year = "2019",
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AU - Ali, Masni Mohd

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N2 - Sixteen surface sediment samples were taken along the vicinity of Kuala Kedah, especially the Kedah River and estuary areas. The surface sediments taken were identified and quantified by gas chromatography coupled with mass spectrometry (GC-MS). The knowledge and information gained from the study show that the concentration of individual Polycyclic Aromatic Hydrocarbon (PAH) compounds was known to be between 1.09 ng/g to 59.01 ng/g dry weight sediment. The river mouth sampling point was found to have the highest total PAHs concentration of 226.03 ng/g sediment dry weight. On the contrary, the S2 sampling point was found to have the lowest concentration of total PAHs with 7.20 ng/g sediment dry weight. Among all the incorporated sampling points, the highest number of an individual compound of PAHs found was that of benzo[ghi]perylene. On the other hand, acenaphthylene, which is another individual compound of PAHs, showed the lowest concentration. Apart from the estimation of the total and individual PAHs concentrations, the molecular indices and the Low Molecular Weight (LMW)/High Molecular Weight (HMW) of phenanthrene/anthracene and fluoranthene/pyrene were analyzed in this study to establish whether the sediment sources were pyrolytic or pyrogenic based. Lastly, based on the study of the sources of the PAHs, it was established that the study site’s sources consisted of mixed PAHs sources with a dominance of pyrogenic sources of fossil fuel combustion, vehicle engine combustion, open wood combustion and charcoal combustion; which were the main causes that contributed towards the diversity of sources in the sediments along the vicinity of Kuala Kedah river and estuary areas.

AB - Sixteen surface sediment samples were taken along the vicinity of Kuala Kedah, especially the Kedah River and estuary areas. The surface sediments taken were identified and quantified by gas chromatography coupled with mass spectrometry (GC-MS). The knowledge and information gained from the study show that the concentration of individual Polycyclic Aromatic Hydrocarbon (PAH) compounds was known to be between 1.09 ng/g to 59.01 ng/g dry weight sediment. The river mouth sampling point was found to have the highest total PAHs concentration of 226.03 ng/g sediment dry weight. On the contrary, the S2 sampling point was found to have the lowest concentration of total PAHs with 7.20 ng/g sediment dry weight. Among all the incorporated sampling points, the highest number of an individual compound of PAHs found was that of benzo[ghi]perylene. On the other hand, acenaphthylene, which is another individual compound of PAHs, showed the lowest concentration. Apart from the estimation of the total and individual PAHs concentrations, the molecular indices and the Low Molecular Weight (LMW)/High Molecular Weight (HMW) of phenanthrene/anthracene and fluoranthene/pyrene were analyzed in this study to establish whether the sediment sources were pyrolytic or pyrogenic based. Lastly, based on the study of the sources of the PAHs, it was established that the study site’s sources consisted of mixed PAHs sources with a dominance of pyrogenic sources of fossil fuel combustion, vehicle engine combustion, open wood combustion and charcoal combustion; which were the main causes that contributed towards the diversity of sources in the sediments along the vicinity of Kuala Kedah river and estuary areas.

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