Forensic investigation of aliphatic hydrocarbons in the sediments from selected mangrove ecosystems in the west coast of Peninsular Malaysia. Issue 1 (15th November 2015)

• Record Type: Journal Article
• Authors: Vaezzadeh, Vahab; Zakaria, Mohamad Pauzi; Shau-Hwai, Aileen Tan; Ibrahim, Zelina Zaiton; Mustafa, Shuhaimi; Abootalebi-Jahromi, Fatemeh; Masood, Najat; Magam, Sami Mohsen; Alkhadher, Sadeq Abdullah Abdo
• Is Part Of: Marine pollution bulletin. Volume 100:Issue 1(2015:Nov.)
• Page Start: 311
• Page End: 320
• Publication Date: 2015-11-15
• Subjects: n-Alkanes -- Sediment -- Aliphatic hydrocarbon -- Peninsular Malaysia -- Petrogenic -- CPI; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2015.08.034
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: Peninsular Malaysia has gone through fast development during recent decades resulting in the release of large amounts of petroleum and its products into the environment. Aliphatic hydrocarbons are one of the major components of petroleum. Surface sediment samples were collected from five rivers along the west coast of Peninsular Malaysia and analyzed for aliphatic hydrocarbons. The total concentrations of C10 to C36 n-alkanes ranged from 27, 945 to 254, 463 ng·g − 1 dry weight (dw). Evaluation of various n-alkane indices such as carbon preference index (CPI; 0.35 to 3.10) and average chain length (ACL; 26.74 to 29.23) of C25 to C33 n-alkanes indicated a predominance of petrogenic source n-alkanes in the lower parts of the Rivers, while biogenic origin n-alkanes from vascular plants are more predominant in the upper parts, especially in less polluted areas. Petrogenic sources of n-alkanes are predominantly heavy and degraded oil versus fresh oil inputs. Highlights: The total concentrations of C10 to C36 n-alkanes ranged from 27, 945 to 254, 463 ng·g − 1 dw. n-Alkanes had both biogenic and petrogenic sources. Petrogenic sources of n-alkanes were more significant in lower parts of the Rivers. Biogenic sources of n-alkanes were more predominant in upper parts of the Rivers. Petrogenic sources of n-akanes were predominantly heavy and degraded oil.