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Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs), dioxin-like polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) in waterbird eggs of Hong Kong, China
State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China; Jiangsu Academy of Environmental Science, No. 241 Fenghuang West Road, Nanjing, China.
State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.ORCID iD: 0000-0002-5557-6213
State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
State Key Laboratory in Marine Pollution, Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.ORCID iD: 0000-0001-6800-5658
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2012 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 86, no 3, 242-247 p.Article in journal (Refereed) Published
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Abstract [en]

Concentrations of PCDD/Fs, PCBs and PBDEs were measured in 56 egg samples collected from waterbirds of different species (Great Egret, Little Egret, Night Heron and Chinese Pond Heron) from different regions of Hong Kong (Ho Sheung Heung, Mai Po Village and Mai Po Lung Village) during 2000 and 2006. Dominance of 2,3,4,7,8-PeCDF indicates a signature associated with commercial usage of PCBs. Although no significant variations were observed within- and between-site in the levels of PCDD/Fs, coplanar PCBs and PBDEs, the concentrations of coplanar PCBs were much higher than PCDD/Fs. Similarity in composition profiles of PCDD/F and coplanar PCBs from different egretries is possibly associated with non-point sources of these contaminants to Hong Kong. Predominant accumulation of BDE-47, BDE-99 and BDE-100 suggested the penta-BDE technical mixtures usage in Hong Kong and its vicinity. Toxic equivalency and Monte Carlo simulation technique showed potential risks on waterbirds due to their exposure to PCDD/Fs.

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 86, no 3, 242-247 p.
Keyword [en]
Coplanar PCBs; Egg; Hong Kong; PBDEs; PCDD/Fs; Waterbirds
National Category
Environmental Sciences
Research subject
Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-49975DOI: 10.1016/j.chemosphere.2011.09.032ISI: 000300210200005PubMedID: 22024097Scopus ID: 2-s2.0-84855205930OAI: oai:DiVA.org:oru-49975DiVA: diva2:950430
Note

Funding Agencies:

University Grants Committee of the Hong Kong Special Administration Region, China AoE/P-04/2004

CityU research Grant 7008035

Hong Kong Research Grants Council CityU 160610

Agriculture, Fisheries and Conservation Department of the Hong Kong SAR Government

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

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Lam, James C. W.Yeung, Leo W. Y.Cai, ZongweiLam, Paul K. S.
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