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Comparison of Historical Record of PCDD/Fs, Dioxin-Like PCBs, and PCNs in Sediment Cores from Jiaozhou Bay and Coastal Yellow Sea: Implication of Different Sources
National Research Center for Geoanalysis, Chinese Academy of Geological Sciences, Beijing, China.
National Research Center for Geoanalysis, Chinese Academy of Geological Sciences, Beijing, China.
National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan.
Department of Chemistry, University of Toronto, Toronto, ON, Canada.ORCID iD: 0000-0001-6800-5658
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2012 (English)In: Bulletin of Environmental Contamination and Toxicology, ISSN 0007-4861, E-ISSN 1432-0800, Vol. 89, no 6, 1240-1246 p.Article in journal (Refereed) Published
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Text
Abstract [en]

The concentrations of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs), dioxin-like polychlorinated biphenyls (PCBs), and polychlorinated naphthalenes (PCNs) were measured in two sediment cores collected from Jiaozhou Bay. The concentrations of PCDD/Fs, dioxin-like PCBs, and PCNs in the cores were in the range of 2.8-26.3, 7.1-82.4 and 3.9-56.4 pg/g dw, respectively. The depth profiles of total concentrations PCDD/Fs and dioxin-like PCBs were similar in the sediment core J37 inside Jiaozhou Bay, but different from those in the sediment core J94 outside the bay, suggesting the different sources. In both cores Tri-CNs and Tetra-CNs were dominant, similar to the PCNs composition of some Halowax technical products. The maximal PCNs contamination occurred in the mid-1970s (outside the Bay) and early-1990s (inside the Bay). An increase of the indicator CN congeners characteristic for thermal source in the top layers of the sediment core inside the bay indicated that the contribution from the municipal solid waste incineration has been more important in recent years.

Place, publisher, year, edition, pages
Springer, 2012. Vol. 89, no 6, 1240-1246 p.
Keyword [en]
Dioxin-like polychlorinated biphenyls; Polychlorinated dibenzo-p-dioxins/dibenzofurans; Polychlorinated naphthalenes; Sediment core
National Category
Environmental Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-49974DOI: 10.1007/s00128-012-0836-zISI: 000310867400028PubMedID: 23007375Scopus ID: 2-s2.0-84870955932OAI: oai:DiVA.org:oru-49974DiVA: diva2:950429
Note

Funding Agency:

Natural Science Foundation of China 41073011  41003044

Available from: 2016-07-29 Created: 2016-04-28 Last updated: 2017-10-17Bibliographically approved

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