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首页> 外文期刊>Environmental Science & Technology >Identification and Evaluation of a Novel Heterocyclic Brominated Flame Retardant Tris(2,3-dibromopropyl) Isocyanurate in Environmental Matrices near a Manufacturing Plant in Southern China
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Identification and Evaluation of a Novel Heterocyclic Brominated Flame Retardant Tris(2,3-dibromopropyl) Isocyanurate in Environmental Matrices near a Manufacturing Plant in Southern China

机译：南方制造工厂附近环境基质中新型杂环溴化阻燃剂三（2,3-二溴丙基）异氰脲酸酯的鉴定与评价

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摘要

A brominated flame retardant (BFR), hexabrominated heterocyclic tris-(2,3-dibromopropyl) isocyanurate (TBC), was identified, for the first time, in the natural environment The chemical was found in river water (2.33-163 ng/L), surface sediments (85.0 ng/g-6.03 μg/g dry weight (dw)), soils (19.6-672 ng/g dw), earthworm (9.75-78.8 ng/g dw), and carp samples (12.0-646 ng/g dw) from a factory-polluted area in southern China. It was found that TBC can strongly adsorb to organic material in sediment, and a trend of decreasing concentration with distance from the source in soil and earthworm samples, combined with calculated K_(ow) (octanol-water partition coefficient) and K_(oa) (octanol-air partition coefficient), suggests its potential ability to undergo regional transportation through dust deposition. Calculated results showed high K_(ow) (log K_(ow) = 7.37) and bioaccumulation factor (BAF) (log BAF = 4.30) of this BFR and indicate that TBC has semivolatile properties and bioaccumulation characteristic in certain biological species. Quantitative structure property relationships (QSPRs) modeling revealed that TBC has K_(oa) (log K_(oa) = 23.68) and K_(aw) (air-water partition coefficient) (log K_(aw) = -16.31) values several orders higher than those of other BFRs. The identification of this chemical additive further reminds us that the production and usage of heterocyclic BFRs may cause potential contamination to the surrounding environment.
机译：首次在自然环境中鉴定出溴化阻燃剂（BFR），六溴代杂环三（2,3-二溴丙基）异氰脲酸酯（TBC）。该化学物质在河水中发现（2.33-163 ng / L ），表面沉积物（85.0 ng / g-6.03μg/ g干重（dw）），土壤（19.6-672 ng / g dw），worm（9.75-78.8 ng / g dw）和鲤鱼样品（12.0-646） ng / g dw）来自中国南部的工厂污染区。结果发现，结合计算出的K_（ow）（辛醇-水分配系数）和K_（oa），TBC能够强烈吸附沉积物中的有机物，并且随着距源和土壤样品浓度的增加而浓度降低的趋势。 （辛醇-空气分配系数）表明其潜在的通过粉尘沉积进行区域运输的能力。计算结果表明该BFR的K_（ow）（log K_（ow）= 7.37）和生物蓄积因子（BAF）（log BAF = 4.30）高，表明TBC在某些生物物种中具有半挥发性和生物蓄积特性。定量结构特性关系（QSPRs）建模显示，TBC的K_（oa）（log K_（oa）= 23.68）和K_（aw）（空气-水分配系数）（log K_（aw）= -16.31）值几个数量级高于其他BFR。对该化学添加剂的鉴定进一步提醒我们，杂环BFR的生产和使用可能对周围环境造成潜在污染。

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  • 来源
    《Environmental Science & Technology》 |2009年第9期|3080-3086|共7页
  • 作者

    TING RUAN; YAWEI WANG; CHANG WANG; PU WANG; JIANJIE FU; YONGGUANG YIN; GUANGBO QU; THANH WANG; GUIBIN JIANG;

  • 作者单位

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;

  • 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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