DISTRIBUTION OF POLYCYCLIC AROMATIC HYDROCARBONS IN SURFACE SEDIMENTS OF THE STRAITS OF MALACCA
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
The International Seminar on the Straits of Malacca and the South China Sea
Abstract
The individual compounds and sources of polycyclic aromatic hydrocarbon
(PAHs) were studied in the surface sediments at 29 sampling sites in the Straits of
Malacca along the areas of Umbai, Bandar Melaka, Tanjung Keling, and Sungai Udang
during South West Monsoon on 8th July 2013. A total of 16 PAHs were determined and
quantifed by gas chromatography coupled with mass spectrometry (GC-MS). The total
PAH concentrations in the surface sediments detected from this study ranged from 8.07
ng/g to 390.03 ng/g with the average of 133.5 ng/g. All sampling stations were dominated
by the range of low molecular weight PAHs (3-ring), 44% and 28% from high molecular
weight PAHs (4 -ring). The sources of PAHs were analyzed by employing diagnostic
ratios (DR) of specifc PAH compounds. The ratios in this study showed mixture of
petrogenic and pyrogenic PAHs sources with a dominance of pyrogenic sources.
Description
Keywords
PAHs, pyrogenic, petrogenic, diagnostic ratios, Malacca (Straits of Malacca)