...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Identifying Transfer Mechanisms and Sources of Decabromodiphenyl Ether (BDE 209) in Indoor Environments Using Environmental Forensic Microscopy
【24h】

Identifying Transfer Mechanisms and Sources of Decabromodiphenyl Ether (BDE 209) in Indoor Environments Using Environmental Forensic Microscopy

机译：使用环境法医显微镜鉴定室内环境中十溴二苯醚（BDE 209）的转移机理和来源

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Although the presence of polybrominated diphenyl ethers (PBDEs) in house dust has been linked to consumer products, the mechanism of transfer remains poorly understood. We conjecture that volatilized PBDEs will be associated with dust particles containing organic matter and will be homogeneously distributed in house dust In contrast PBDEs arising from weathering or abrasion of polymers should remain bound to particles of the original polymer matrix and will be heterogeneously distributed within the dust We used scanning electron microscopy and othertools of environmental forensic microscopy to investigate PBDEs in dust, examining U.S. and U.K. dust samples with extremely high levels of BDE 209 (260-2600 μg/ g), a nonvolatile compound at room temperature. We found that the bromine in these samples was concentrated in widely scattered, highly contaminated particles. In the house dustrnsamples from Boston (U.S.), bromine was associated with a polymer/organic matrix. These results suggest that the BDE 209 was transferred to dust via physical processes such as abrasion or weathering. In conjunction with more traditional tools of environmental chemistry, such as gas chromatography/ mass spectrometry (GC/MS), environmental forensic microscopy provides novel insights into the origins of BDE 209 in dust and their mechanisms of transfer from products.
机译：尽管室内灰尘中多溴二苯醚（PBDEs）的存在与消费产品有关，但对转移的机理仍知之甚少。我们推测挥发的多溴二苯醚会与含有机物的尘埃颗粒相关，并且会均匀分布在室内尘埃中。相反，由于聚合物的风化或磨损而产生的多溴二苯醚应保持与原始聚合物基质的颗粒结合，并会在尘埃中异质分布我们使用扫描电子显微镜和环境法医显微镜的其他工具调查了灰尘中的多溴二苯醚，检查了美国和英国的灰尘样品，这些样品中的BDE 209含量极高（260-2600μg/ g），在室温下为非挥发性化合物。我们发现，这些样品中的溴集中在广泛分散，高度污染的颗粒中。在美国波士顿的室内灰尘样本中，溴与聚合物/有机基质相关。这些结果表明，BDE 209是通过物理过程（例如磨蚀或老化）转移到灰尘中的。与更传统的环境化学工具（如气相色谱/质谱法（GC / MS））结合使用，环境法医显微镜为粉尘中BDE 209的起源及其从产品中转移的机理提供了新颖的见解。

著录项

  • 来源
    《Environmental Science & Technology》 |2009年第9期|3067-3072|共6页
  • 作者

    THOMAS F. WEBSTER; STUART HARRAD; JAMES R. MILLETTE; R. DAVID HOLBROOK; JEFFREY M. DAVIS; HEATHER M. STAPLETON; JOSEPH G. ALLEN; MICHAEL D. MCCLEAN; CATALINA IBARRA; MOHAMED ABOU-ELWAFA ABDALLAH; ADRIAN COVACI;

  • 作者单位

    Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts 02118;

    Division of Environmental Health and Risk Management, University of Birmingham, Birmingham, B15 2TT, U.K.;

    MVA Scientific Consultants, Duluth, Georgia 30096 Surface;

    Microanalysis Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899;

    Microanalysis Science Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899;

    Nicholas School of the Environment, Duke University, Durham, North Carolina 27708;

    Environmental Health and Engineering Inc., Needham, Massachusetts 02494;

    Department of Environmental Health, Boston University School of Public Health, Boston, Massachusetts 02118;

    Division of Environmental Health and Risk Management, University of Birmingham, Birmingham, B15 2TT, U.K.;

    Division of Environmental Health and Risk Management, University of Birmingham, Birmingham, B15 2TT, U.K. Department of Analytical Chemistry, Faculty of Pharmacy, Assiut University, 71526 Assiut, Egypt;

    Toxicological Center, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号