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首页> 外文期刊>Environmental Science & Technology >Has the Phase-Out of PBDEs Affected Their Atmospheric Levels?Trends of PBDEs and Their Replacements in the Great Lakes Atmosphere
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Has the Phase-Out of PBDEs Affected Their Atmospheric Levels?Trends of PBDEs and Their Replacements in the Great Lakes Atmosphere

机译：多溴二苯醚的淘汰是否影响了其大气水平？大湖大气中多溴二苯醚的趋势及其替代趋势

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摘要

Air and precipitation samples were collected every 12 days at five sites near the North American Great Lakes from 2005 to 2011 (inclusive) by the Integrated Atmospheric Deposition Network (IADN). The concentrations of polybrominated diphenyl ethers (PBDEs) and selected alternative brominated flame retardants [pentabromoethyl benzene (PBEB), hexabromobenzene (HBB), 1,2-bis(2,4,6-tribromophenoxy)ethane (TBE or BTBPE), decabromodiphenylethane (DBDPE), 2-ethylhexyl-2,3,4,5-tetrabro-mobenzoate (TBB), and bis(2-ethylhexyl)-tetrabromo-phthalate (TBPH)] were measured in these samples. The concentrations of almost all of these flame retardants were related to the number of people within a 25 km radius of the sampling site, except for HBB, the concentrations of which were relatively high at Sturgeon Point, and PBEB, the concentrations of which were relatively high at Eagle Harbor. The temporal trends of all of these concentrations were variable. For example, BDE-47 vapor phase concentrations were increasing with doubling times of 5-10 years at Sturgeon Point, Sleeping Bear Dunes, and Eagle Harbor, but these concentrations were slowly decreasing in all phases at Chicago. The most consistent trend was for TBE, which showed concentrations that were unchanging or decreasing in all phases at all sites, TBPH concentrations in particles and HBB concentrations in precipitation were rapidly increasing at most sites with doubling times of ～2 years. The concentrations of DBDPE and BDE-209 were strongly and positively correlated, and the concentrations of TBB and TBPH were also strongly and positively correlated. The concentrations of TBB plus TBPH (representing Firemaster 550) and BDE-47, 85, 99, 100, 153, plus 154 (representing the withdrawn penta-BDE commercial mixture) were also strongly and positively correlated. These positive relationships indicate that the replacement of the deca-BDE commercial product by DBDPE and the penta-BDE product by Firemaster 550 have not yet become evident in the Great Lakes' atmospheric environment.
机译：2005年至2011年（含），在北美五大湖附近的五个地点，每12天通过综合大气沉积网络（IADN）收集空气和降水样本。多溴二苯醚（PBDEs）和选定的其他溴化阻燃剂[五溴乙苯（PBEB），六溴苯（HBB），1,2-双（2,4,6-三溴苯氧基）乙烷（TBE或BTBPE），十溴二苯乙烷（在这些样品中测量了DBDPE），2-乙基己基-2,3,4,5-四溴-苯甲酸酯（TBB）和双（2-乙基己基）-四溴邻苯二甲酸酯（TBPH）]。几乎所有这些阻燃剂的浓度都与采样点半径25 km之内的人数有关，除了HBB的浓度在St鱼点相对较高，而PBEB的浓度相对较高。高在鹰港。所有这些浓度的时间趋势是可变的。例如，St鱼角，睡熊沙丘和鹰港的BDE-47气相浓度以5-10年的两倍倍数增加，但在芝加哥的所有相中，这些浓度在缓慢降低。 TBE最一致的趋势是，在所有地点，所有阶段的浓度均不变或降低，在大多数地点，颗粒中的TBPH浓度和降水中的HBB浓度迅速增加，约为2年的两倍。 DBDPE和BDE-209的浓度呈强正相关，TBB和TBPH的浓度也呈强正相关。 TBB和TBPH（代表Firemaster 550）和BDE-47、85、99、100、153和154（代表撤出的五溴二苯醚商用混合物）的浓度也呈强正相关。这些积极的关系表明，在大湖区的大气环境中，DBDPE取代十溴联苯醚商业产品和Firemaster 550取代五溴联苯醚产品尚不明显。

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  • 来源
    《Environmental Science & Technology》 |2013年第20期|11457-11464|共8页
  • 作者

    Yuning Ma; Amina Salamova; Marta Venier; Ronald A. Hites;

  • 作者单位

    School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405, United States;

    School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405, United States;

    School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405, United States;

    School of Public and Environmental Affairs, Indiana University, Bloomington, Indiana 47405, United States;

  • 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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  • 正文语种 eng
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