Determination of linear alkylbenzenes (LABs) in mangrove ecosystems using the oyster Crassostrea belcheri as a biosensor

Alkhadher, Sadeq Abdullah Abdo and Kadir, Aeslina Abdul and Zakaria, Mohamad Pauzi and Al-Gheethi, Adel and Asghar, Basim Hussain Mustafa (2020) Determination of linear alkylbenzenes (LABs) in mangrove ecosystems using the oyster Crassostrea belcheri as a biosensor. Marine Pollution Bulletin, 154. ISSN 0025-326X,

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Abstract

The current study aimed to develop a suitable molecular marker Linear alkylbenzenes (LABs)] approach for pollution determination in mangrove oysters of peninsular Malaysia. C. belcheri species were collected from rivers of Merbok, Perai, Klang, Muar and PulauMerambong (An Island). The LABs were extracted from C. belcheri and determined using GC-MS. The LABs indices which included I/E, L/S and C13/C12 were applied to describe the sources and biodegradation of LABs. The results revealed that the maximum concentrations were detected in oysters from Klang (27.91 ng g(-1)dw), while the lowest concentrations were detected in oysters from Merbok (8.12 ng g(-1)dw). Moreover, I/E ratios varied between 2.83 and 6.40, indicating the secondary treatment effluents being discharged to coastal zones. The results of this study suggested that the oysters absorbed LABs mainly in dissolved phase. Therefore, mangrove oysters are a good biosensor for LABs contamination in the aquatic environment.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: I/E ratio; LABs; C. belcheri; Biosensor; Sewage pollution
Subjects: Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences
Depositing User: Ms Zaharah Ramly
Date Deposited: 10 Jun 2025 01:19
Last Modified: 10 Jun 2025 01:19
URI: http://eprints.um.edu.my/id/eprint/36708

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