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首页> 外文期刊>Environmental Science & Technology >Spatial Distribution of Old and Emerging Flame Retardants in Chinese Forest Soils: Sources, Trends and Processes
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Spatial Distribution of Old and Emerging Flame Retardants in Chinese Forest Soils: Sources, Trends and Processes

机译：中国森林土壤中旧的和新兴的阻燃剂的空间分布：来源，趋势和过程

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摘要

The levels and distribution of polybrominated diphenylethers (PBDEs), novel brominated flame retardants (NBFRs) and Dechlorane Plus (DP) in soils and their dependence on environmental and anthropological factors were investigated in 1S9 soil samples from 30 background forested mountain sites across China. Decabromodiphenyl- ethane (DBDPE) was the most abundant flame retardant (25-18 000 pg g~(-1) and 5-13 000 pg g~(-1) in O-horizon and A-horizon, respectively), followed by BDE 209 (nd-5900 pg g~(-1) and nd-2400 pg g~(-1) in O-horizon and A-horizon, respectively). FRs distributions were primarily controlled by source distribution. The distributions of most phasing-out PBDEs, DP isomers and TBPH were in fact correlated to a population density-based index used as proxy of areas with elevated usage and waste of FR containing products. High concentrations of some NBFRs were however observed in industrialized regions and FR manufacturing plants. Strongly positive correlations were observed between PBDEs and their replacement products suggesting similar emission pattern and environmental behavior. Exposure of mineral subsoils depended on precipitations driving leaching of FRs into the soil core. This was especially evident for some emerging BFRs (TBE, TBPH, and TBB etc) possibly indicating potential for diffuse groundwater contamination.
机译：在中国30个背景林山地的1S9土壤样本中，研究了土壤中多溴联苯醚（PBDEs），新型溴化阻燃剂（NBFRs）和十氯烷（DP）的含量和分布及其对环境和人类学因素的依赖性。十溴二苯乙烷（DBDPE）是最丰富的阻燃剂（O-水平和A-水平分别为25-18 000 pg g〜（-1）和5-13 000 pg g〜（-1）），其次是BDE 209（在O-horizo​​n和A-horizo​​n中分别为nd-5900 pg g〜（-1）和nd-2400 pg g〜（-1））。 FRs分布主要受源分布控制。实际上，大多数逐步淘汰的多溴二苯醚，DP异构体和TBPH的分布与基于人口密度的指数相关，该指数被用作替代地区，这些地区的含氟量产品使用量增加和浪费。但是，在工业化地区和阻燃剂生产工厂中观察到了一些高浓度的NBFR。在多溴二苯醚及其替代产品之间观察到强烈的正相关，表明相似的排放模式和环境行为。矿质土壤的暴露取决于降水，这些降水促使FRs浸入土壤核心。对于某些新兴的溴化阻燃剂（TBE，TBPH和TBB等）而言，这一点尤其明显，可能表明存在扩散性地下水污染的可能性。

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  • 来源
    《Environmental Science & Technology》 |2015年第5期|2904-2911|共8页
  • 作者

    Qian Zheng; Luca Nizzetto; Jun Li; Marie D. Mulder; Ondrej Sanka; Gerhard Lammel; Haijian Bing; Xin Liu; Yishan Jiang; Chunling Luo; Gan Zhang;

  • 作者单位

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

    Masaryk University, Research Centre for Toxic Compounds in the Environment, Brno 601 77, Czech Republic,Norwegian Institute for Water Research, Oslo NO-0349, Norway;

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

    Masaryk University, Research Centre for Toxic Compounds in the Environment, Brno 601 77, Czech Republic;

    Masaryk University, Research Centre for Toxic Compounds in the Environment, Brno 601 77, Czech Republic;

    Masaryk University, Research Centre for Toxic Compounds in the Environment, Brno 601 77, Czech Republic,Max Planck Institute for Chemistry, Mainz 55128, Germany;

    The Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

    State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

  • 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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