title: Source apportionment of surfactants in marine aerosols at different locations along the Malacca Straits.
abstract: This study aims to determine the source apportionment of surfactants in marine aerosols at two selected stations along the Malacca Straits. The aerosol samples were collected using a high volume sampler equipped with an impactor to separate coarse- and fine-mode aerosols. The concentrations of surfactants, as methylene blue active substance and disulphine blue active substance, were analysed using colorimetric method. Ion chromatography was employed to determine the ionic compositions. Principal component analysis combined with multiple linear regression was used to identify and quantify the sources of atmospheric surfactants. The results showed that the surfactants in tropical coastal environments are actively generated from natural and anthropogenic origins. Sea spray (generated from sea-surface microlayers) was found to be a major contributor to surfactants in both aerosol sizes. Meanwhile, the anthropogenic sources (motor vehicles/biomass burning) were predominant contributors to atmospheric surfactants in fine-mode aerosols.
authors: School of Environmental and Natural Resource Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
authors: Nur Ili Hamizah
authors: NI
authors: Mustaffa
authors: Mohd Talib
authors: MT
authors: Latif
authors: Masni Mohd
authors: MM
authors: Ali
authors: Md Firoz
authors: MF
authors: Khan
mesh_terms: D000336:Aerosols / Q000032:analysis*; D000393:Air Pollutants / Q000032:analysis*; D004784:Environmental Monitoring; D008296:Malaysia; D008751:Methylene Blue / Q000737:chemistry; D025341:Principal Component Analysis; D013501:Surface-Active Agents / Q000032:analysis*
chemical_list: D000336:Aerosols; D000393:Air Pollutants; D013501:Surface-Active Agents; D008751:Methylene Blue