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Speciation and source identification of organic compounds in PM10 over Seoul, South Korea

Title
Speciation and source identification of organic compounds in PM10 over Seoul, South Korea
Authors
Choi, Na RaeLee, Se PyoLee, Ji YiJung, Chang HoonKim, Yong Pyo
Ewha Authors
김용표
SCOPUS Author ID
김용표scopus
Issue Date
2016
Journal Title
CHEMOSPHERE
ISSN
0045-6535JCR Link1879-1298JCR Link
Citation
vol. 144, pp. 1589 - 1596
Keywords
Organic aerosolsn-AlkanesPolycyclic aromatic carbonsMono-carboxylic acidsDicarboxylic acidsSugarsSeoul
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Seventy three individual organic compounds in the atmospheric particulate matter with an aerodynamic diameter of less than or equal to a nominal 10 mu m (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), monocarboxylic 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. (C) 2015 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.chemosphere.2015.10.041
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엘텍공과대학 > 화학신소재공학전공 > Journal papers
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