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首页> 外文期刊>Environmental toxicology and chemistry >TOXIC HAZARD OF LEACHATES FROM FURFURYLATED WOOD: COMPARISON BETWEEN TWO DIFFERENT AQUATIC ORGANISMS
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TOXIC HAZARD OF LEACHATES FROM FURFURYLATED WOOD: COMPARISON BETWEEN TWO DIFFERENT AQUATIC ORGANISMS

机译：毛化木材渗滤液的毒性危害：两种不同水生生物的比较

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摘要

Environmental concern regarding the use of toxic preservatives such as chromated copper arsenate (CCA) has been put forward. In the European Union, United States, and Japan, CCA has been phased out for residential and water-contact applications. Ecotoxicological studies of wood treated with conventional preservatives were carried out in the late 1990s, and it was concluded that the main impact is to water and aquatic organisms. Today, alternatives to conventional preservation methods, marketed as "environmentally friendly" or "nontoxic," are emerging. Examples of such alternatives are modified wood, e.g., thermally modified, furfurylated, and acetylated wood. To date, not enough hazard characterization has been performed. In the present study, the Microtox? assay with the marine bacterium Vibrio fischeri and the Daphtox? procedure with the crustacean Daphnia magna were used as screening methods in an effect assessment. Both organisms were exposed to water leachates from furfurylated wood using two different leaching procedures. The results indicate that Microtox is more sensitive to the toxic components from furfurylated wood than Daphtox. Furthermore, the toxicity of treated Pinus radiata was higher than that of treated Pinus sylvestris. The toxicity did not diminish over the test period, as is the case for preservative-treated wood. The present study found that treatment conditions can influence the toxicity considerably, so toxicity studies should be included in the development of new treatment process. The present study also shows that using an intermediate vacuum-drying step, leading to a more efficient curing/polymerization, results in slightly less hydrophobic oligomers in the product, such that the leachates become less toxic to bacteria.
机译：已经提出了关于使用有毒防腐剂如铬酸砷酸铜（CCA）的环境问题。在欧盟，美国和日本，CCA已逐步淘汰用于住宅和水接触应用。在1990年代后期对用常规防腐剂处理过的木材进行了生态毒理学研究，得出的结论是，主要影响是对水和水生生物的影响。如今，正在出现以“环境友好”或“无毒”的传统保存方法的替代品。这种替代物的例子是改性木材，例如，热改性，糠醛化和乙酰化的木材。迄今为止，尚未进行足够的危害表征。在本研究中，Microtox？用海洋细菌费氏弧菌和水蚤进行检测？甲壳类水蚤（Daphnia magna）的筛选程序用作效果评估的筛选方法。使用两种不同的浸出程序，将两种生物都暴露于糠醛化木材的水浸出液中。结果表明，Microtox对糠醛化木材中的有毒成分比Daphtox更为敏感。此外，经处理的辐射松的毒性高于经处理的樟子松的毒性。在测试期间，毒性并未减弱，防腐剂处理过的木材也是如此。本研究发现治疗条件可以极大地影响毒性，因此在新治疗方法的开发中应包括毒性研究。本研究还表明，使用中间真空干燥步骤可导致更有效的固化/聚合，从而导致产品中的疏水性低聚物略少，从而使沥出液对细菌的毒性降低。

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  • 来源
    《Environmental toxicology and chemistry》 |2010年第5期|P.1067-1071|共5页
  • 作者

    Annica Pilgard; rnLiesbeth De Vetter; rnJoris Van Acker; rnMats Westin;

  • 作者单位

    SP Technical Research Institute of Sweden, Brinellgatan 4, SE-501 15 Boras, Sweden;

    Ghent University, Faculty of Bioscience Engineering, Laboratory of Wood Technology, Coupure Links 653, B-9000 Gent, Belgium;

    rnGhent University, Faculty of Bioscience Engineering, Laboratory of Wood Technology, Coupure Links 653, B-9000 Gent, Belgium;

    rnSP Technical Research Institute of Sweden, Brinellgatan 4, SE-501 15 Boras, Sweden;

  • 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

    toxicity; vibrio fischeri; daphnia magna; furfurylated wood; leaching;

    机译：毒性;费氏弧菌水蚤糠醛木浸出;

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