Effects of hydrodynamics on the distribution of trace persistent organic pollutants and macrobenthic communities in Bohai Bay

Zheng, Binghui; Zhao, Xingru; Liu, Lusan; Li, Zicheng; Lei, Kun; Zhang, Lei; Qin, Yanwen; Gan, Zhifen; Gao, Shizhen; Jiao, Lixin

doi:10.1016/j.chemosphere.2011.04.006

Cited by 52 publications

(25 citation statements)

References 20 publications

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“…Furthermore, the relative standard deviations of DBDPE in the two bays (0.48 and 0.44 in Taozi Bay and Sishili Bay, respectively) were lower than those in the other two bays (1.04 and 0.64 in Dalian Bay and Jiaozhou Bay, respectively), and this was likely because the good level of seawater exchange gave the contaminants a chance to mix well. Previous studies have demonstrated that TOC and grain size can affect the distribution of POPs (Zhao et al, 2010;Zheng et al, 2011). Among the investigated areas, a good correlation between TOC and DBDPE (r ¼ 0.61; p < 0.05, Table S2aed) was only found in Jiaozhou Bay.…”

Section: Spatial Distribution Of Bfrs In the Four Baysmentioning

confidence: 78%

Polybrominated diphenyl ethers (PBDEs) and alternative brominated flame retardants (aBFRs) in sediments from four bays of the Yellow Sea, North China

Zhen

Tang

Xie

et al. 2016

Environmental Pollution

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a b s t r a c tThe distribution characteristics and potential sources of polybrominated diphenyl ethers (PBDEs) and alternative brominated flame retardants (aBFRs) were investigated in 54 surface sediment samples from four bays (Taozi Bay, Sishili Bay, Dalian Bay, and Jiaozhou Bay) of North China's Yellow Sea. Of the 54 samples studied, 51 were collected from within the four bays and 3 were from rivers emptying into Jiaozhou Bay. Decabromodiphenylethane (DBDPE) was the predominant flame retardant found, and concentration ranged from 0.16 to 39.7 ng g À1 dw and 1.13e49.9 ng g À1 dw in coastal and riverine sediments, respectively; these levels were followed by those of BDE 209, and its concentrations ranged from n.d. to 10.2 ng g À1 dw and 0.05e7.82 ng g À1 dw in coastal and riverine sediments, respectively. The levels of DBDPE exceeded those of decabromodiphenyl ether (BDE 209) in most of the samples in the study region, whereas the ratio of DBDPE/BDE 209 varied among the four bays. This is indicative of different usage patterns of brominated flame retardants (BFRs) and also different hydrodynamic conditions among these bay areas. The spatial distribution and composition profile analysis indicated that BFRs in Jiaozhou Bay and Dalian Bay were mainly from local sources, whereas transport from Laizhou Bay by coastal currents was the major source of BFRs in Taozi Bay and Sishili Bay. Both the P PBDEs and P aBFRs (sum of pentabromotoluene (PBT), 2,3-diphenylpropyl-2,4,6-tribromophenyl ether (DPTE), pentabromoethylbenzene (PBEB), and hexabromobenzene (HBB)) were at low concentrations in all the sediments. This is probably attributable to a combination of factors such as low regional usage of these products, atmospheric deposition patterns, coastal currents transportation patterns, and degradation processes for higher BDE congeners. This paper is the first study that has investigated the levels of DBDPE in the coastal sediments of China's Yellow Sea.

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Section: Spatial Distribution Of Bfrs In the Four Baysmentioning

confidence: 78%

Polybrominated diphenyl ethers (PBDEs) and alternative brominated flame retardants (aBFRs) in sediments from four bays of the Yellow Sea, North China

Zhen

Tang

Xie

et al. 2016

Environmental Pollution

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show abstract

“…TOC content in the sediment correlates well with the D50 median diameter (r 2 =0.47, n=23, pb 0.001), indicating that fine particles had a stronger affinity for organic matter than coarse particles (Suguio, 1973). Consequently, grain sizes could influence the distribution and partitioning of PFAAs via their impact on the affinities of organic matter for sediments (Hu et al, 2011;Zheng et al, 2011). PFAAs might adsorb onto fine particles because there was more organic matter on/in such particles.…”

Section: Global Comparison Of Pfaas In Sedimentsmentioning

confidence: 99%

Perfluoroalkyl acids (PFAAs) in riverine and coastal sediments of Laizhou Bay, North China

Zhao

Tang

Xie³

et al. 2013

Science of The Total Environment

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“…It has been indicated that the TOC and grain size of sediments are two significant factors controlling the spatial distribution of POPs in the aquatic environment (Pan et al, 2010;Zheng et al, 2011). Similar to other POPs, PBDEs can be readily adsorbed on the particulate matters due to their high hydrophobicities (Rahman et al, 2001).…”

Section: Distributionmentioning

confidence: 99%

Polybrominated diphenyl ethers (PBDEs) in sediments of the coastal East China Sea: Occurrence, distribution and mass inventory

Lin

Chen

et al. 2012

Environmental Pollution

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Effects of hydrodynamics on the distribution of trace persistent organic pollutants and macrobenthic communities in Bohai Bay

Cited by 52 publications

References 20 publications

Polybrominated diphenyl ethers (PBDEs) and alternative brominated flame retardants (aBFRs) in sediments from four bays of the Yellow Sea, North China

Polybrominated diphenyl ethers (PBDEs) and alternative brominated flame retardants (aBFRs) in sediments from four bays of the Yellow Sea, North China

Perfluoroalkyl acids (PFAAs) in riverine and coastal sediments of Laizhou Bay, North China

Polybrominated diphenyl ethers (PBDEs) in sediments of the coastal East China Sea: Occurrence, distribution and mass inventory

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