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Recent occurrence of PAHs and n-Alkanes in pm2.5 in Seoul, Korea and characteristics of their sources and toxicity

Title
Recent occurrence of PAHs and n-Alkanes in pm2.5 in Seoul, Korea and characteristics of their sources and toxicity
Authors
Kang M.Kim K.Choi N.Kim Y.P.Lee J.Y.
Ewha Authors
김용표이지이
SCOPUS Author ID
김용표scopus
Issue Date
2020
Journal Title
International Journal of Environmental Research and Public Health
ISSN
1661-7827JCR Link
Citation
International Journal of Environmental Research and Public Health vol. 17, no. 4
Keywords
Diagnostic ratioN-alkanesPAHsSource characteristicsToxicity
Publisher
MDPI AG
Indexed
SCIE; SSCI; SCOPUS scopus
Document Type
Article
Abstract
Polycyclic Aromatic Hydrocarbons (PAHs) and n‐alkanes in particulate matter with an aerodynamic diameter of 2.5 micrometers or less (PM2.5) were quantified at Seoul, Korea in 2018. The seasonal differences in the total concentration of PAHs and n‐Alkanes were clear, where winter showed a higher concentration than that of summer. Compared to the PAHs measurements in 2002 at Seoul, the sum of PAHs concentrations in 2018 were reduced from 26.6 to 5.6 ng m−3. Major sources of the observed PAHs and n‐alkanes were deduced from various indicators such as diagnostic ratios for PAHs and Cmax, CPI, and WNA (%) indices for n‐alkanes. It was found that in winter coal and biomass combustions, and vehicular exhaust were major sources, while, in summer vehicular exhaust was major source. In addition, in winter, major emission sources were located outside of Seoul. The health effect from the recent level of PAHs was estimated and compared to the previous studies observed in Seoul, and it was found that, recently, the toxicity of PAHs in PM2.5 was significantly decreased, except for in the winter. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
DOI
10.3390/ijerph17041397
Appears in Collections:
엘텍공과대학 > 화학신소재공학전공 > Journal papers
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