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Distribution of PAHs and n-alkanes in Klang River surface sediments, Malaysia


Citation

Bakhtiari, Alireza Riyahi and Zakaria, Mohamad Pauzi and Yaziz, Mohammad Ismail and Lajis, Md. Nordin and Bi, Xinhui and Mohamad Shafiee, Mohamad Reza and Sakari, Mahyar (2010) Distribution of PAHs and n-alkanes in Klang River surface sediments, Malaysia. Pertanika Journal of Science & Technology, 18 (1). pp. 167-179. ISSN 0128-7680; ESSN: 2231-8526

Abstract / Synopsis

Surface sediment samples were collected from five locations at the downstream of Klang River in January 2007 to examine the spatial distribution, composition, and sources of 19 parent polycyclic aromatic hydrocarbons (PAHs) and aliphatic hydrocarbon (n-alkanes) using gas chromatography-mass spectrometry. The total concentrations of the 19 PAHs in the sediments were found to range from 1304 to 2187 ng g-1 sediment. Meanwhile, total concentrations of n-alkanes ranged from 17008 to 27116 μg g-1 sediment. The concentration of n-alkanes in the sediment was significantly correlated (r = 0.991, p = 0.001) with the content of sediment organic carbon. In this study, all the sediments exhibited phenanthrene/anthracene (PHE/ANT >15) fluoranthene/(fluorantene+pyrene) (FLT/FLT+PYR < 0.4), methylphenanthrenes/phenanthrene (MP/P >1), combustion PAHs/total PAHs (CombPAH/∑19PAH <0.3), terrigenous/aquatic ratio for hydrocarbons greater than 23. The also data showed that petrogenic and natural inputs were predominant at all the locations investigated. Multiple sources of n-alkanes and PAHs in the river sediments were also explained by low carbon preference index (CPI) values, different ratios of diploptene/∑C23-C25 n-alkanes, poor correlation between diploptene and ∑C23-C25, average chain length (ACL) of 29.54 ± 0.09, correlation between CPI and ACL (r = 0.847, p= 0.035), and high ratio of naphthalene/total PAHs.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Environmental Studies
Institute of Bioscience
Publisher: Universiti Putra Malaysia Press
Keywords: ACL; CPI; Diploptene; Klang River; N-alkanes; PAHs
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 19 Jun 2015 08:52
Last Modified: 05 Jan 2016 14:36
URI: http://psasir.upm.edu.my/id/eprint/14113
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