Distribution of black carbon and PAHs in sediments of Peninsular Malaysia
Document Type
Article
Publication Date
11-1-2021
Abstract
Concentrations, sources and interactions between black carbon (BC) and polycyclic aromatic hydrocarbons (PAHs) were investigated in 42 sediment samples collected from riverine, coastal and shelf areas in Peninsular Malaysia. The concentrations of BC measured by benzene polycarboxylic acid (BPCA) method and PAHs showed broad spatial variations between the relatively pristine environment of the East coast and developed environment of the West and South coast ranging from 0.02 to 0.36% dw and 57.7 ng g-1 dw to 19,300 ng g-1 dw, respectively. Among diagnostic ratios of PAHs, the ratios of Ant/(Ant+Phe) and LMW/HMW drew the clearest distinctions between the East coast versus the West and South coast sediments indicating the predominance of petrogenic sources in the former versus pyrogenic sources in the latter. PAHs significantly correlated with BC and total organic carbon (TOC) in the sediments (p < 0.05) having similar correlation coefficients. BC accounted for 6.06 to 30.6% of TOC in sediments.
Keywords
Black carbon, PAHs, TOC, Sorption, Benzene polycarboxylic acids, Southeast Asia
Divisions
InstituteofBiologicalSciences,advanced,ocean
Funders
International Partnership Program of Chinese Academy of Sciences [Grant No: 132744KYSB20170002],Guangdong Foundation for Program of Science and Technology Research [Grant No: 2017BT01Z134 & 2019B121205006],SKLOG open fund [Grant No: SKLOG201744],Chinese Academy of Sciences President's International Fellowship for Visiting Scientists [Grant No" 2022VCC0006],Ministry of Higher Education Malaysia LRGS (MRUN) [Grant No: LRGS/1/2016/UTM/01/1/2 & IOES-2014D],Universiti Malaya [Grant No: IIRG009B-2019],China-ASEAN Maritime Cooperation Fund Project "Monitoring and Conservation of the coastal ecosystem in the South China Sea",National Natural Science Foundation of China (NSFC) [Grant No: 41961144022]
Publication Title
Marine Pollution Bulletin
Volume
172
Publisher
Pergamon-Elsevier Science Ltd
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND