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Choi, Sung-Deuk
Environmental Analytical Chemistry Lab (EACL)
Research Interests
  • Persistent organic pollutants, Environmental Analysis and monitoring, Multimedia modeling

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Factors affecting the level and pattern of polycyclic aromatic hydrocarbons (PAHs) at Gosan, Korea during a dust period

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Title
Factors affecting the level and pattern of polycyclic aromatic hydrocarbons (PAHs) at Gosan, Korea during a dust period
Author
Choi, Sung-DeukGhim, Young SungLee, Ji YiKim, Jin YoungKim, Yong Pyo
Keywords
Anthropogenic pollutants; Asian dust; Correlation analysis; Diagnostic ratios; Gas/particle partitioning; Industrial area; Jeju island; Local source; Long range transport; Mongolia; Northern China; Polycyclic aromatic hydrocarbons(PAHs); Sampling period; Source identification; Strong winds; Total suspended particles
Issue Date
201208
Publisher
ELSEVIER SCIENCE BV
Citation
JOURNAL OF HAZARDOUS MATERIALS, v.227, no., pp.79 - 87
Abstract
Polycyclic aromatic hydrocarbons (PAHs) in both gas and total suspended particles were measured at Gosan, Jeju Island in Korea, a remote background site, for 15 days (March 29-April 12, 2002). During the sampling period, a severe three-day Asian dust (AD) event originating from Mongolia and northern China was observed throughout the Korean Peninsula and Jeju Island. In addition, pollution (PO) and normal (NO) periods were also identified based on the levels of anthropogenic pollutants. Despite a large difference of PK10 concentrations between the AD and PO periods, the levels of particulate PAHs in both periods were comparable (2.7 +/- 1.0 and 2.4 +/- 0.5 ng m(-3), respectively) since they were determined by the concentration of anthropogenic PM2.5 transported from industrial areas of China. In the AD period, the level of gaseous PAHs, which were mostly from local sources, was the lowest due to strong winds; the gas/particle partitioning was close to equilibrium as the effect of long-range transport was manifested. The results of backward air trajectories, correlation analysis, and diagnostic ratios show that long-range transport of particulate PAHs produced by coal/biomass burning in China could strongly affect the levels and patterns of PAHs at Gosan. Korea.
URI
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DOI
http://dx.doi.org/10.1016/j.jhazmat.2012.05.012
ISSN
0304-3894
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