Congener specific distributions of polybrominated diphenyl ethers (PBDEs) in sediment and mussel (Mytilus edulis) of the Bo Sea, China

Wang, Zhen; Ma, Xindong; Zhao, Lin; Na, Guangshui; Yao, Ziwei

doi:10.1016/j.chemosphere.2008.10.064

Cited by 109 publications

(58 citation statements)

References 26 publications

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“…13,14 Similar congener patterns in the surface and subsurface sediments of the core were found, except for slightly lower BDE 100 and higher BDE 153 proportions (Fig. 6).…”

Section: Congener Patterns and Possible Sourcessupporting

confidence: 68%

Levels and distributions of PBDEs and PCBs in sediments of the Bohai Sea, North China

Pan

Tang

et al. 2010

J. Environ. Monit.

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Fifty-four surface sediments covering the whole water body of the Bohai Sea in North China were collected and analyzed for PBDEs and PCBs, to acquire information about their levels, distributions and possible sources. The results show that BDE 209 is the predominant congener with a mean value of 7000 pg g À1 dry weight, two orders of magnitude higher than other BDE congeners. The concentrations of SPBDE 7 (including BDE 28,47, 99, 100, 153, 154 and 183) range from 220 to 900 pg g À1 dw. Significant correlations were found between BDE congeners and total organic content (TOC) (r 2 ¼ 0.48-0.73). Pearson analysis shows that most tri-to hepta-BDE congeners were closely correlated (r 2 > 0.69). Congener patterns varied little among most of the samples and all the detected BDE congeners make a relatively equal mass contribution to SPBDE 7 . Such a profile is notably different from any of the BDE commercial products. As for PCBs, only a few congeners were detected in certain samples. They ranged from nd-610 pg g À1 dw with a mean value of 145 pg g À1 dw, at the lower end of the range reported in remote areas of Europe and North America. The overall burdens of SPBDE 7 and BDE 209 within the upper 3 cm sediment layer were estimated to be 0.95-1.25 t and 11-19 t respectively. The latter accounts for about 0.008-0.014% of total BDE 209 produced in China from 1999 to 2006.

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“…13,14 Similar congener patterns in the surface and subsurface sediments of the core were found, except for slightly lower BDE 100 and higher BDE 153 proportions (Fig. 6).…”

Section: Congener Patterns and Possible Sourcessupporting

confidence: 68%

Levels and distributions of PBDEs and PCBs in sediments of the Bohai Sea, North China

Pan

Tang

et al. 2010

J. Environ. Monit.

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“…Also, by comparison with areas in lower latitudes, P PBDEs in the present study were lower than those in the South China Sea Mai et al, 2005;Zhang et al, 2009); Yangtze River Delta (Chen et al, 2006); Bo Sea, China ; Tokyo Bay, Japan (Minh et al, 2007); San Francisco Bay (Oros et al, 2005); and Singapore (Wurl and Obbard, 2005). Concentrations of BDE-209 were lower than those in other locations also (Allchin et al, 1999;Chen et al, 2006;Eljarrat et al, 2005;Mai et al, 2005;Minh et al, 2007;Moon et al, 2007;Toms et al, 2008;Wang et al, 2009;Zhang et al, 2009). This might be due to the shorter distances from the points of usage in the lower latitudes.…”

Section: Comparison Of the Concentration Of Sediment Pbdesmentioning

confidence: 47%

Distribution of polybrominated diphenyl ethers and decabromodiphenylethane in surface sediments from the Bering Sea, Chukchi Sea, and Canada Basin

Cai

Hong

Wang

et al. 2012

Deep Sea Research Part II: Topical Studies in Oceanography

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“…Nevertheless, a more likely explanation is that BDE183 in the sediments was formed from microbial or photolytic debromination of highly brominated BDEs (Bezares-Cruz et al 2004;He et al 2006). Elevated contributions of BDE183 and 28 have also been found in riverine (but not in the estuarine) sediments in the Pearl River Delta but not in marine sediments from the East China Sea and Bohai Sea (Wang et al 2009;Li et al 2012b). Overall, the altered PBDE profiles in the sediments in the present study suggest that some congeners may have encountered degradation due to the reduced fresh inputs, especially in riverine buried sediments.…”

Section: Compositions and Source Identificationmentioning

confidence: 99%

Occurrence, sources, and ecological risks of PBDEs, PCBs, OCPs, and PAHs in surface sediments of the Yangtze River Delta city cluster, China

Zhang

Yang

Chen

et al. 2014

Environ Monit Assess

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Polybrominated diphenyl ethers (PBDEs), organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) in 25 surface sediments in three cities (Nantong, Wuxi, and Suzhou) in the Yangtze River Delta, eastern China were measured. The mean concentrations were 378, 45.8, 1.98, 4,002 ng/g for PBDEs, OCPs, PCBs, and PAHs, respectively. Their levels in the sediments in the three cities were generally consistent with the city industrialization. PBDEs and OCPs were markedly dominated by deca-BDE (>90 %) and DDTs (>70 %). A principle component analysis of the analytes identified three major factors suggesting different sources of the contaminants in the sediments. PBDEs and the organic carbon in the sediments have common sources from industrial activities; whereas OCPs and PCBs, correlated with the second factor, were mainly from historical sources. The third factor with loadings of PAHs is indicative of various combustion sources. Ecological risk assessment indicated that the potential highest risk is from DDTs, for which 22 sites exceed the effects range low (ERL) values and three sites exceed the effects range median (ERM) value.

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Congener specific distributions of polybrominated diphenyl ethers (PBDEs) in sediment and mussel (Mytilus edulis) of the Bo Sea, China

Cited by 109 publications

References 26 publications

Levels and distributions of PBDEs and PCBs in sediments of the Bohai Sea, North China

Levels and distributions of PBDEs and PCBs in sediments of the Bohai Sea, North China

Distribution of polybrominated diphenyl ethers and decabromodiphenylethane in surface sediments from the Bering Sea, Chukchi Sea, and Canada Basin

Occurrence, sources, and ecological risks of PBDEs, PCBs, OCPs, and PAHs in surface sediments of the Yangtze River Delta city cluster, China

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