Title of article :
Distribution of PAHs and n-alkanes in Klang River Surface Sediments, Malaysia
Author/Authors :
Riyahi Bakhtiari, Alireza Universiti Putra Malaysia - Faculty of Environmental Studies - Environmental Forensics Laboratory, Malaysia , Pauzi Zakaria, Mohamad Universiti Putra Malaysia - Faculty of Environmental Studies - Environmental Forensics Laboratory, Malaysia , Yaziz, Mohammad Ismail Universiti Putra Malaysia - Faculty of Environmental Studies - Environmental Forensics Laboratory, Malaysia , Hj Lajis, Mohamad Nordin Universiti Putra Malaysia - Institute of Bioscience - Laboratory of Natural Products, Malaysia , Bi, Xinhui Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, - Guangdong Key Laboratory of Environment and Resources - State Key Laboratory of Organic Geochemistry, P.R. China , Mohamad Shafiee, Mohamad Reza Universiti Putra Malaysia - Faculty of Environmental Studies - Environmental Forensics Laboratory, Malaysia , Sakari, Mahyar Universiti Putra Malaysia - Faculty of Environmental Studies - Environmental Forensics Laboratory, Malaysia
Abstract :
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 chromatographymass 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/Σ19PAH 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/ΣC23-C25 n-alkanes, poor correlation between diploptene and ΣC23-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.
Keywords :
ACL , CPI , diploptene , Klang river , n , alkanes , PAHs
Journal title :
Pertanika Journal of Science and Technology ( JST)
Journal title :
Pertanika Journal of Science and Technology ( JST)
