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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/7246

Title: Passive Air Monitoring of PCBs and PCNs Across East Asia: A Comprehensive Congener Evaluation for Source Characterization
Authors: Hogarh, Jonathan N.
Seike, Nobuyasu
Kobara, Yuso
Habib, Ahsan
Namd, Jae-Jak
Lee, Jong-Sik
Li, Qilu
Liu, Xiang
Li, Jun
Zhang, Gan
Masunaga, Shigeki
Keywords: PCBs
PCNs
Passive air sampling
Principal component analysis
Issue Date: 2012
Publisher: Chemosphere 86
Citation: Chemosphere 86 (2012) 718–726
Abstract: A comprehensive congener specific evaluation of polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs) in the atmosphere was conducted across East Asia in spring 2008, applying polyurethane foam (PUF) disk passive air sampler (PAS) as monitoring device. Mean concentrations derived for Japan, China and Korea were 184 ± 24, 1100 ± 118, and 156 ± 20 pg m 3 for P202 PCBs, and 9.5 ± 1.5, 61 ± 6, and 16 ± 2.4 pg m 3 for P63 PCNs, respectively. Relative to reported data from 2004, the present results suggest that air PCBs concentrations have not changed much in Japan and Korea, while it has increased by one order of magnitude in China. From principal component analysis, combustion emerged highly culpable in contemporary emissions of both PCBs and PCNs across the East Asian sub-region. Another factor derived as important to air PCBs was re-emissions/volatilization. Signals from PCBs formulations were also picked, but their general importance was virtually consigned to the re-emissions/volatilization tendencies. On the contrary, counterpart PCNs formulations did not appear to contribute much to air PCNs.
Description: Article published in Chemosphere 86, 2012. Also available at www.elsevier.com/locate/chemosphere.
URI: http://hdl.handle.net/123456789/7246
Appears in Collections:College of Science

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