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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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Atmospheric bulk deposition of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the vicinity of an iron and steel making plant

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Title
Atmospheric bulk deposition of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the vicinity of an iron and steel making plant
Author
Fang, MingliangChoi, Sung-DeukBaek, Song-YeePark, HyokeunChang, Yoon-Seok
Keywords
Ambient air concentration; Atmospheric bulk deposition; Bulk depositions; Deposition fluxes; Gas/particle partitioning; Homologue profile; IRA-743 resin bulk sampler; Iron-and-steel making; Passive air; PCDD/Fs; Polychlorinated dibenzo-p-dioxins and dibenzofurans; Prevailing winds; Sampling campaigns; Seasonal changes; Seasonal variation; South Korea; Temperature dependent
Issue Date
201108
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
CHEMOSPHERE, v.84, no.7, pp.894 - 899
Abstract
An IRA-743 resin bulk sampler was validated to monitor long-term bulk deposition of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). Six consecutive sampling campaigns (2008-2009) were conducted at four sites around steel complexes in Pohang, South Korea to investigate spatial and seasonal variations of PCDD/F bulk deposition. The bulk deposition within the steel complex showed the highest Sigma(4-8)PCDD/F (Tetra-Octa) fluxes, ranging from 204 to 608 (mean: 352) pg m(-2) d(-1), indicating steel complexes were major sources of PCDD/Fs. The homologue profiles were dominated with lower chlorinated PCDFs. Furthermore, the prevailing winds were confirmed to influence the spatial distribution of PCDD/F deposition. There were apparent seasonal variations of the bulk deposition at each site, and seasonal homologue patterns of PCDD/Fs were clearly observed. According to the passive air sampling, however, no significant seasonal change of ambient air concentrations of PCDD/Fs was observed. Therefore, it was concluded that the seasonal variations of deposition fluxes of PCDD/Fs probably resulted from temperature-dependent gas/particle partitioning.
URI
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DOI
http://dx.doi.org/10.1016/j.chemosphere.2011.06.016
ISSN
0045-6535
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