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首页> 外文期刊>Environmental Science & Technology >Polybrominated and Mixed Brominated/Chlorinated Dibenzo-p-Dioxins in Sponge (Ephydatia fluviatilis) from the Baltic Sea
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Polybrominated and Mixed Brominated/Chlorinated Dibenzo-p-Dioxins in Sponge (Ephydatia fluviatilis) from the Baltic Sea

机译：波罗的海海绵（Ephydatia fluviatilis）中的多溴和混合溴/氯化二苯并-对-二恶英

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摘要

Polybrominated dibenzo-p-dioxins (PBDDs) have recently been found in the Baltic Sea at concentrations 1000 times above that of the chlorinated analogs (PCDDs), yet their sources are undefined. Marine production of organobrominated compounds by sponges is well documented. The objective of the current study was to investigate the potential for an aquatic sponge (Ephydatia fluviatilis), common to the Baltic Sea, to produce PBDDs and other organobromine compounds in the field. Mono- to pentaBDDs as well as several mixed brominated/ chlorinated dibenzo-p-dioxins (Br/CI-DDs), PCDDs and methoxylated polybrominated diphenyl ethers (MeO-PBDEs) were quantified in sponge from the SW Baltic. Concentrations of individual PBDDs in the range 1-80 ng per g extractable organic matter were similar as in blue mussels from the Baltic Sea and about 25 000 times higher than 2,3,7,8-tetraCDD. To the best of our knowledge, this is the first time Br/CI-DDs are reported in biota from a background environment While this study does not point out sponges as a dominant source, the concentrations of PBDDs in sponge relative to related anthropogenic compounds such as PBDEs and PCDDs as well as the relative abundance of brominated dioxins and furans strengthens the idea of natural production.
机译：最近在波罗的海发现了多溴二苯并对二恶英（PBDDs），其浓度比氯化类似物（PCDDs）高1000倍，但其来源尚未确定。海绵在海洋中生产有机溴化化合物的文献已得到充分证明。本研究的目的是研究波罗的海常见的水生海绵（Ephydatia fluviatilis）在野外生产PBDDs和其他有机溴化合物的潜力。在波罗的海波罗的海地区的海绵中，对单-五溴二苯并二恶英，以及几种混合的溴化/氯化二苯并对二恶英（Br / CI-DDs），PCDD和甲氧基化的多溴二苯醚（MeO-PBDEs）进行了定量。单个PBDDs的浓度范围为每克可提取有机物1-80 ng，与波罗的海蓝贻贝中的浓度相似，比2,3,7,8-tetraCDD高出约25,000倍。据我们所知，这是首次从背景环境中报道生物区系中的Br / CI-DDs。虽然这项研究并未指出海绵是主要来源，但海绵中PBDDs的浓度相对于相关的人为化合物因为多溴二苯醚和多氯二苯并对二恶英以及溴化二恶英和呋喃的相对含量提高了自然生产的观念。

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  • 来源
    《Environmental Science & Technology》 |2009年第21期|8245-8250|共6页
  • 作者

    MARIA UNGER; LILLEMOR ASPLUND; PETER HAGLUND; ANNA MALMVAERN; KRISHNA ARNOLDSSON; ORJAN GUSTAFSSON;

  • 作者单位

    Department of Applied Environmental Science (ITM), Stockholm University Department of Environmental Chemistry, Stockholm University;

    Department of Applied Environmental Science (ITM), Stockholm University;

    Department of Chemistry, Umea University;

    Department of Applied Environmental Science (ITM), Stockholm University;

    Department of Chemistry, Umea University;

    Department of Applied Environmental Science (ITM), Stockholm University;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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