Composition and source apportionment of surfactants in atmospheric aerosols of urban and semi-urban areas in Malaysia

被引:44
作者
Abd Wahid, Nurul Bahiyah [1 ,2 ]
Latif, Mohd Talib [1 ]
Suratman, Suhaimi [3 ,4 ]
机构
[1] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Environm & Nat Resource Sci, Bangi 43600, Selangor, Malaysia
[2] Univ Pendidikan Sultan Idris, Fac Sci & Math, Dept Biol, Tanjung Malin 35900, Perak, Malaysia
[3] Univ Malaysia Terengganu, Inst Oceanog & Environm, Kuala Terengganu 21030, Terengganu, Malaysia
[4] Univ Malaysia Terengganu, Fac Sci & Technol, Dept Chem Sci, Environm Res Grp, Kuala Terengganu 21030, Terengganu, Malaysia
关键词
Surfactant; Source apportionment; Atmospheric aerosol; Urban area; Semi-urban area; LINEAR ALKYLBENZENE SULFONATES; PARTICULATE MATTER; CHEMICAL-COMPOSITION; TRANSPORT; PM10; SUBSTANCES; CLIMATE; QUALITY; COARSE; PM2.5;
D O I
10.1016/j.chemosphere.2012.12.029
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This study was conducted to determine the composition and source apportionment of surfactant in atmospheric aerosols around urban and semi-urban areas in Malaysia based on ionic compositions. Colorimetric analysis was undertaken to determine the concentrations of anionic surfactants as Methylene Blue Active Substances (MBAS) and cationic surfactants as Disulphine Blue Active Substances (DBAS) using a UV spectrophotometer. Ionic compositions were determined using ion chromatography for cations (Na+, NH4+, K+, Mg2+, Ca2+) and anions (F-, Cl-, NO3-, SO42-). Principle component analysis (PCA) combined with multiple linear regression (MLR) were used to identify the source apportionment of MBAS and DBAS. Results indicated that the concentrations of surfactants at both sampling sites were dominated by MBAS rather than DBAS especially in fine mode aerosols during the southwest monsoon. Three main sources of surfactants were identified from PCA-MLR analysis for MBAS in fine mode samples particularly in Kuala Lumpur, dominated by motor vehicles, followed by soil/road dust and sea spray. Besides, for MBAS in coarse mode, biomass burning/sea spray were the dominant source followed by motor vehicles/road dust and building material. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1508 / 1516
页数:9
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