期刊
CHEMOSPHERE
卷 78, 期 10, 页码 1213-1219出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2009.12.058
关键词
Brominated flame retardant; HBCD and PBDE; Pops; Mussel and oyster; Seafood; Risk assessment
资金
- Global Environment Research Fund [RF-0904]
- Ministry of the Environment, Japan, Grant-in-Aid for Young Scientists (B) [18780245, 21710068]
- Special Coordination Funds for Promoting Science and Technology
- The Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
- Grants-in-Aid for Scientific Research [21710068, 18780245] Funding Source: KAKEN
In order to elucidate the spatial distribution of brominated flame retardants (BFRs) in the Japanese coastal environment, hexabromocycloclodecanes (HBCDs), polybrominated diphenyl ethers (PBDEs) and organochlorines (OCs: PCBs, DDTs, CHLs HCHs, HCB) were determined in bivalves (oysters and mussels) collected from Japanese coastal waters. HBCDs and PBDEs were detected in all samples analyzed. Concentration ranges of HBCDs were 12-5200 ng g(-1) lipid wt., followed by PCBs (203100 ng g(-1)) > PBDEs (3.1-86 ng g(-1) lipid wt.). The highest concentration of HBCDs was found in the Osaka region. This result indicates that HBCDs are ubiquitous and predominant compounds in bivalves from the Japanese coastal waters. Since no species differences between oysters and mussels were observed for the bioaccumulation properties of HBCDs and PBDEs, oysters could be utilized for BFR contamination monitoring worldwide as an alternative to mussels. Global comparisons between oysters and mussels showed that HBCD concentrations in Japan are among the highest levels reported from Asia and Europe. Estimated dietary exposures of HBCDs and PBDEs through seafood were 0.45-34 ng kg body weight(-1) d(-1), and 0.054-6.8 ng kg body weight(-1) d(-1), respectively. These exposure levels were more than 1000 times lower than the lowest observable effects or no observable adverse effects levels for HBCDs and PBDEs, respectively. (C) 2009 Elsevier Ltd. All rights reserved.
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