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首页> 外文期刊>Environmental Science & Technology >Polybrominated Diphenyl Ethers vs Alternate Brominated Flame Retardants and Dechloranes from East Asia to the Arctic
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Polybrominated Diphenyl Ethers vs Alternate Brominated Flame Retardants and Dechloranes from East Asia to the Arctic

机译:多溴联苯醚与东亚至北极的其他溴化阻燃剂和十氯烷

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摘要

Marine boundary layer air and seawater samples taken during a polar expedition cruise from East China Sea to the Arctic were analyzed in order to compare the occurrence, distribution, and fate of the banned polybrominated diphenyl ethers (PBDEs) with their brominated alternatives as well as the chlorinated Dechloranes. The sum of PBDEs (£10PBDEs) in the atmosphere ranged from 0.07 to 8.1 pg m~3 with BDE—209 being the dominating congener and from not detected (n.d.) to 0.6 pg L~' in seawater. Alternate brominated flame retardants (BFRs), especially hexabromobenzene (HBB), (2,3-dibromopropyl-2,4,6-tribromophenyl ether (DPTE), pentabromo-toluene (PBT), 2-ethylhexyl 2,3,4,5-tetrabromobenzoate (EHTBB), bis-(2-ethyl-hexyO-tetrabromophthalate (TBPH), were detected in higher concentrations than PBDEs, even in the high Arctic (0.6 to 15.4 pg m~3 for sum of alternate BFRs), indicating the change of PBDEs toward alternate BFRs in the environmental predominance. In addition, Dechlorane Plus (DP) as well as Dechlorane 602, 603, and 604 were detected both in the atmosphere and in seawater. The highest concentrations as well as the highest compound variability were observed in East Asian samples suggesting the Asian continent as source of these compounds in the marine environment. The air—seawater exchange indicates strong deposition, especially of alternate BFRs, as well as dry particle—bound deposition of BDE—209 into the ocean.
机译:分析了从东海到北极的一次极地考察之旅中采集的海洋边界层空气和海水样本,以比较被禁止的多溴二苯醚(PBDEs)及其溴代替代品以及溴代二苯醚的发生,分布和结局。氯化十氯烷。大气中的多溴二苯醚总量(£10PBDEs)范围从0.07到8.1 pg m〜3,其中BDE-209是主要的同类物,在海水中未检测到(标量)到0.6 pg L〜'。替代溴化阻燃剂(BFR),尤其是六溴苯(HBB),(2,3-二溴丙基-2,4,6-三溴苯醚(DPTE),五溴甲苯(PBT),2-乙基己基2,3,4,5甚至在北极高海拔地区(替代BFR的总和为0.6至15.4 pg m〜3),也检测到比四溴联苯醚更高的浓度的四溴代苯甲酸四氢呋喃酯(EHTBB)。在环境优势中,多溴二苯醚会朝着交替的溴化阻燃剂方向变化;此外,在大气和海水中都检测到了Dechlorane Plus(DP)以及Dechlorane 602、603和604,最高的浓度和最大的化合物变异性是在东亚样品中观察到的现象表明,亚洲大陆是海洋环境中这些化合物的来源,空气与海水的交换表明强烈的沉积,尤其是替代的溴化阻燃剂沉积,以及干粒子结合的BDE-209沉积到海洋中。

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  • 来源
    《Environmental Science & Technology》 |2011年第16期|p.6793-6799|共7页
  • 作者单位

    Department for Environmental Chemistry, Institute of Coastal Research, Helmholtz—Zentrum Geesthacht, Centre for Materials and Coastal Research, Max—Planck—Strasse 1, 21502 Geesthacht, Germany;

    Department for Environmental Chemistry, Institute of Coastal Research, Helmholtz—Zentrum Geesthacht, Centre for Materials and Coastal Research, Max—Planck—Strasse 1, 21502 Geesthacht, Germany;

    SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China;

    Department for Environmental Chemistry, Institute of Coastal Research, Helmholtz—Zentrum Geesthacht, Centre for Materials and Coastal Research, Max—Planck—Strasse 1, 21502 Geesthacht, Germany,Yantai Institute of Coastal Zone Research, CAS, Yantai 264003, China,Graduate School of the Chinese Academy of Sciences, Beijing 100039, China;

    College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China;

    College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China;

    Department for Environmental Chemistry, Institute of Coastal Research, Helmholtz—Zentrum Geesthacht, Centre for Materials and Coastal Research, Max—Planck—Strasse 1, 21502 Geesthacht, Germany;

    SOA Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China;

    Department for Environmental Chemistry, Institute of Coastal Research, Helmholtz—Zentrum Geesthacht, Centre for Materials and Coastal Research, Max—Planck—Strasse 1, 21502 Geesthacht, Germany;

  • 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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