Institute of Oceanography and Environment, Universiti Malaysia Terengganu, 21030, K. Nerus, Terengganu, Malaysia.
School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
Environ Sci Pollut Res Int. 2022 Mar;29(11):15849-15862. doi: 10.1007/s11356-021-16762-6. Epub 2021 Oct 11.
Surface sediments along the Southern Terengganu coast (≤7 km from the coast) were analyzed for polycyclic aromatic hydrocarbons (PAHs). The concentrations of 16 USEPA priority polycyclic aromatic hydrocarbons (ΣPAH) ranged from 2.59 to 155 ng g and their respective alkylated ranged between 8.80 and 24.90 ng g. Traces of acephenanthrylene, benzo[c]phenanthrene, thiophenic PAH, and benzonaphthofuran were identified. PAH diagnostic ratios and cross-plots revealed that these sedimentary PAH compounds are derived mainly from pyrogenic sources, primarily from biomass burning and petroleum combustion residues with minor petrogenic input. The high correlations between pyrogenic PAHs to total PAHs (r >0.73, p <0.5), and the Bap/Bep ratio to total PAHs (r = 0.88, p <0.5), suggest that atmospheric deposition and urban runoff are the main deposition pathways. The concentrations of the PAHs in the southern South China Sea fall in the moderate contamination range of 100-1000 ng g.
沿登嘉楼南部海岸（距海岸≤7 公里）的表层沉积物中分析了多环芳烃（PAHs）。16 种美国环保署优先控制的多环芳烃（ΣPAH）的浓度范围为 2.59 至 155ng/g，其相应的烷基化产物浓度在 8.80 至 24.90ng/g 之间。鉴定出了苊烯、苯并[c]菲、噻吩类 PAH 和苯并萘呋喃。PAH 诊断比和交会图表明，这些沉积 PAH 化合物主要来源于源自于生物质燃烧和石油燃烧残留物的热成因源，而源自于石油的输入则较少。热成因 PAHs 与总 PAHs（r＞0.73，p＜0.5）之间以及 Bap/Bep 比值与总 PAHs（r＝0.88，p＜0.5）之间存在高度相关性，表明大气沉降和城市径流是主要的沉降途径。南海南部海域 PAHs 的浓度处于 100-1000ng/g 的中等污染范围。
