Speciation and source identification of organic compounds in PM10 over Seoul, South Korea
- 주제(키워드) Dicarboxylic acids , Mono-carboxylic acids , N-Alkanes , Organic aerosols , Polycyclic aromatic carbons , Seoul , Sugars
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier Ltd
- 발행년도 2016
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000123095
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.chemosphere.2015.10.041
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Seventy three individual organic compounds in the atmospheric particulate matter with an aerodynamic diameter of less than or equal to a nominal 10 μm (PM10) over Seoul were identified and quantified from April 2010 to April 2011 using gas chromatography/mass spectrometry (GC/MS). These organic compounds were classified into five groups, n-alkanes, polycyclic aromatic hydrocarbons (PAHs), mono-carboxylic acids, di-carboxylic acids (DCAs), and sugars based on their chemical structures and properties. The organic compounds showed higher seasonal average concentrations from fall to winter than from spring to summer due to source strength, except some organic compounds among mono-carboxylic acids, DCAs, sugars such as undecanoic acid, methylmalonic acid, and fructose. Through qualitative data analysis using seasonal concentration variations and relevant diagnostic parameters, it was found that (1) anthropogenic sources such as combustion of fossil fuel and biomass burning attributed more to the formation of the organic aerosols than biogenic sources, and (2) the ambient level of n-alkanes, PAHs, and some compounds of DCAs and sugars was elevated in winter due to the increased primary emissions and larger transport from outside of the organic compounds in winter. © 2015 Elsevier Ltd.
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