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首页> 外文期刊>Environmental Pollution >Polybrominated, Polychlorinated And Monobromo-polychlorinated Dibenzo-p-dioxins/dibenzofurans And Dioxin-like Polychlorinated Biphenyls In Marine Surface Sediments From Hong Kong And Korea
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Polybrominated, Polychlorinated And Monobromo-polychlorinated Dibenzo-p-dioxins/dibenzofurans And Dioxin-like Polychlorinated Biphenyls In Marine Surface Sediments From Hong Kong And Korea

机译:香港和韩国海洋表层沉积物中的多溴,多氯和单溴-多氯二苯并-对-二恶英/二苯并呋喃和二恶英类多氯联苯

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摘要

In this study we investigated occurrences and distribution patterns of dioxin-related compounds (DRCs) such as polybrominated dibenzo-p-dioxins/dibenzofurans (PBDD/Fs), polychlorinated dibenzo-p-dioxins/ dibenzofurans (PCDD/Fs), monobromo-polychlorinated dibenzo-p-dioxins/dibenzofurans (MoBPCDD/Fs) and dioxin-like polychlorinated biphenyls (DL-PCBs) in marine surface sediments collected from the coastal waters of Hong Kong and Korea. In most sampling sites, concentrations of PCDDs were the highest, followed by DL-PCBs, PCDFs, PBDFs, PBDDs, MoBPCDDs and MoBPCDFs in this order. Levels of PBDD/Fs were generally 1-2 orders of magnitude lower than chlorinated analogues. Levels of PCDDs are higher than PCDFs in Hong Kong while levels of PBDFs are higher than PBDDs in Korea (p < 0.05). Report of PBDD/Fs and MoBPCDD/Fs in sediments from East Asian countries is novel and original. Environmental levels of PBDD/Fs are supposed to start increasing in accordance with rising production, use and disposal of brominated flame retardants (BFRs) and recycling processes of e-waste in Asian developing countries.
机译:在这项研究中,我们调查了二恶英相关化合物(DRC)的发生和分布模式,例如多溴二苯并p-二恶英/二苯并呋喃(PBDD / Fs),多氯二苯并p-二恶英/二苯并呋喃(PCDD / Fs),单溴多氯从香港和韩国沿海水域收集的海洋表层沉积物中的二苯并-对-二恶英/二苯并呋喃(MoBPCDD / Fs)和类二恶英样多氯联苯(DL-PCBs)。在大多数采样点中,PCDDs的浓度最高,其次是DL-PCBs,PCDFs,PBDFs,PBDDs,MoBPCDDs和MoBPCDFs。 PBDD / Fs的水平通常比氯化类似物低1-2个数量级。香港的PCDD含量高于PCDF,而韩国的PBDF含量高于PBDD(p <0.05)。来自东亚国家沉积物中的PBDD / Fs和MoBPCDD / Fs的报告是新颖新颖的。 PBDD / Fs的环境水平应该随着亚洲发展中国家发展中国家溴化阻燃剂(BFRs)的生产,使用和处置以及电子废物回收过程的增加而开始增加。

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