Characteristics of oxygenated PAHs in PM10 at Seoul, Korea

Hyun Hee Lee, Na Rae Choi, Hyung Bae Lim, Seung Muk Yi, Yong Pyo Kim, Ji Yi Lee

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28 Scopus citations

Abstract

Seven particulate oxygenated-polycyclic aromatic hydrocarbons (oxy-PAHs) were analyzed in atmospheric particulate matter with an aerodynamic diameter of less than or equal to a nominal 10 μm (PM10) for the period between September 2006 and August 2007 in Seoul, South Korea. The major contributors of oxy-PAHs production were identified based on statistical analyses such as correlation coefficient relationship, principal component analysis (PCA), and simple reaction kinetics calculation. The results show that (1) the average concentrations of seven oxy-PAHs were 7.63 ± 4.32 ng/m3, with distinctive seasonal variations, being higher in winter (8.70 ± 3.90 ng/m3) and lower in summer (1.47 ± 0.73 ng/m3), similar to PAHs; (2) there were mixed contributions of primary emissions (e.g., vehicular emissions, biomass burning, long-range transport) and atmospheric reactions to oxy-PAH production; and (3) primary emissions might affect more than atmospheric reactions to the oxy-PAHs levels.

Original languageEnglish
Pages (from-to)112-118
Number of pages7
JournalAtmospheric Pollution Research
Volume9
Issue number1
DOIs
StatePublished - Jan 2018

Bibliographical note

Publisher Copyright:
© 2017 Turkish National Committee for Air Pollution Research and Control

Keywords

  • GC/MS (gas chromatography/mass spectrometry)
  • Main contributors producing oxy-PAHs
  • Oxy-PAHs
  • Seasonal variation of oxy-PAHs
  • Toxicity

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