Baseline distribution and sources of linear alkyl benzenes (LABs) in surface sediments from Brunei Bay, Brunei

Sadeq Abullah Abdo Alkhadher; Mohamad Pauzi Zakaria; Fatimah Md Yusoff; Narayanan Kannan; Suhaimi Suratman; Mehrzad Keshavarzifard; Sami Muhsen Magam; Najat Masood; Vahab Vaezzadeh; Muhamad Shirwan Abdullah Sani

doi:10.1016/j.marpolbul.2015.10.011

Baseline distribution and sources of linear alkyl benzenes (LABs) in surface sediments from Brunei Bay, Brunei

Mar Pollut Bull. 2015 Dec 15;101(1):397-403. doi: 10.1016/j.marpolbul.2015.10.011. Epub 2015 Oct 21.

Affiliations

¹ Environmental Forensics Research Center (ENFORCE), Faculty of Environmental Studies, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
² Institute of Ocean and Earth Sciences (IOES), University of Malaya, 16310 Bachok, Kelantan, Malaysia. Electronic address: mpauzi57@um.edu.my.
³ Laboratory of Marine Biotechnology, Institute of Bioscience and Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
⁴ Department of Environmental Sciences, Faculty of Environmental Studies, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
⁵ Environmental Research Group, Department of Chemical Sciences, Faculty of Science and Technology, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia.
⁶ Halal Products Research Institute, Universiti Putra Malaysia, 4300 UPM Serdang, Selangor, Malaysia.

PMID: 26478457
DOI: 10.1016/j.marpolbul.2015.10.011

Abstract

Sewage pollution is one of major concerns of coastal and shoreline settlements in Southeast Asia, especially Brunei. The distribution and sources of LABs as sewage molecular markers were evaluated in surface sediments collected from Brunei Bay. The samples were extracted, fractionated and analyzed using gas chromatography- mass spectrometry (GC-MS). LABs concentrations ranged from 7.1 to 41.3 ng g(-1) dry weight (dw) in surficial sediments from Brunei Bay. The study results showed LABs concentrations variably due to the LABs intensity and anthropogenic influence along Brunei Bay in recent years. The ratio of Internal to External isomers (I/E ratio) of LABs in sediment samples from Brunei Bay ranged from 0.56 to 2.17 along Brunei Bay stations, indicating that the study areas were receiving primary and secondary effluents. This is the first study carried out to assess the distribution and sources of LABs in surface sediments from Brunei Bay, Brunei.

Keywords: Brunei; Brunei Bay; I/E ratio; Linear alkylbenzenes (LABs); Sewage.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bays
Benzene Derivatives / analysis*
Benzene Derivatives / chemistry
Brunei
Environmental Monitoring / methods
Gas Chromatography-Mass Spectrometry
Geologic Sediments / analysis*
Geologic Sediments / chemistry
Isomerism
Sewage / analysis
Water Pollutants, Chemical / analysis*
Water Pollutants, Chemical / chemistry

Substances

Benzene Derivatives
Sewage
Water Pollutants, Chemical