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Choi, Sung-Deuk
Environmental Analytical Chemistry Lab.
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Factors affecting the level and pattern of polycyclic aromatic hydrocarbons (PAHs) at Gosan, Korea during a dust period

Author(s)
Choi, Sung-DeukGhim, Young SungLee, Ji YiKim, Jin YoungKim, Yong Pyo
Issued Date
2012-08
DOI
10.1016/j.jhazmat.2012.05.012
URI
https://scholarworks.unist.ac.kr/handle/201301/3411
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84862672446
Citation
JOURNAL OF HAZARDOUS MATERIALS, v.227, 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.
Publisher
ELSEVIER SCIENCE BV
ISSN
0304-3894
Keyword (Author)
Anthropogenic pollutantsPM2.5Gas/particle partitioningSource identification

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