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Tris(2,3-dibromopropyl) isocyanurate, hexabromocyclododecanes, and polybrominated diphenyl ethers in mollusks from Chinese Bohai Sea.
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
School of Public Health, University of Illinois at Chicago, Chicago, United States.
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.ORCID iD: 0000-0002-5729-1908
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
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2012 (English)In: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 46, no 13, 7174-7181 p.Article in journal (Refereed) Published
Abstract [en]

A novel brominated flame retardant (BFR), tris(2,3-dibromopropyl) isocyanurate (TBC), as well as hexabromocyclododecanes (HBCDs) and polybrominated diphenyl ethers (PBDEs), were analyzed in 11 species of mollusks collected from nine coastal cities around the Chinese Bohai Sea in 2009 and 2010. The detection frequencies were 100%, 99%, and 77% for PBDEs, HBCDs, and TBC, respectively. Concentrations of ∑HBCDs ranged from below detection limit (nd) to 28.8 ng g(-1) on a dry weight (dw) basis, followed by ∑(12)PBDE (0.01-20.4 ng g(-1) dw) and TBC (nd-12.1 ng g(-1) dw). Statistically significant linear correlations were found among the three BFRs. Positive correlations were found between BFRs concentrations and lipid content in mollusks. The concentrations tend to decrease with increasing trophic levels of the mollusks, implying trophic dilution rather than biomagnifications of the BFRs in the aquatic food chains of the sampling area. Among the 11 mollusks species, Mytilus edulis showed higher bioaccumulation capability than others and was therefore considered to be an appropriate bioindicator of contamination by the BFRs in the Chinese Bohai Sea, in agreement with its previous selection for the biomonitoring of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs). A dramatic decrease in PBDE concentrations in mollusks of the area was found for the time period from 2003 to 2010, with a half-life of only 2.3 ± 1.7 years, reflecting a rapid response of mollusks to the change in pollution of the marine environment.

Place, publisher, year, edition, pages
Washington DC, USA: American Chemical Society (ACS), 2012. Vol. 46, no 13, 7174-7181 p.
Keyword [en]
Animals, China, Environmental Monitoring, Flame Retardants, Halogenated Diphenyl Ethers, Hydrocarbons, Brominated, Mollusca, Oceans and Seas, Triazines, Water Pollutants, Chemical
National Category
Environmental Sciences
Identifiers
URN: urn:nbn:se:oru:diva-38432DOI: 10.1021/es300776fISI: 000305876500038PubMedID: 22663562Scopus ID: 2-s2.0-84863530073OAI: oai:DiVA.org:oru-38432DiVA: diva2:765002
Note

Sponsors:

National Basic Research Program of China  Grant no 2009CB421605 

National Natural Science Foundation  Grant no:s 20890111  21007078  21177149  21177147 

Available from: 2014-11-21 Created: 2014-11-07 Last updated: 2015-06-05Bibliographically approved

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