...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Partitioning of Chlorinated Paraffins (CPs) to Daphnia magna Overlaps between Restricted and in-Use Categories
【24h】

Partitioning of Chlorinated Paraffins (CPs) to Daphnia magna Overlaps between Restricted and in-Use Categories

机译：氯化石蜡（CPs）划分为水蚤（Daphnia magna）受限和使用中类别之间的重叠

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

Chlorinated paraffins (CPs) are high-production volume industrial chemicals consisting of n-alkanes (with 10 to 30 carbon atoms in the chain) with chlorine content from 30 to 70% of weight. In Europe, the use of short chain chlorinated paraffins (SCCPs) has been restricted by the Stockholm Convention on POPs due to their PBT (persistent, bioaccumulative and toxic) properties. Medium (MCCPs) and long chain (LCCPs) chlorinated paraffins are used as substitution products. In this work we studied the partitioning behavior of five different CP technical mixtures from the established categories (2 SCCPs, 1 MCCP, 1 LCCP and 1 CP technical mixture covering all categories) using passive dosing, by determining the partitioning coefficient of CP technical mixtures between silicone and water (Ksilicone-water) as well as between organic matter and water (Koc-water). We show that both silicone-water and organic carbon water partition coefficients overlap between different categories of CP technical mixtures. These results indicate that in-use MCCPs and LCCPs may be equally or more bioaccumulative than restricted SCCPs. For the tested mixtures, both chlorine content and carbon chain length showed a significant correlation with both Ksilicone-water and Koc-water.
机译：氯化石蜡（CPs）是高产量的工业化学品，由正构烷烃（链中具有10至30个碳原子）组成，氯含量为重量的30％至70％。在欧洲，由于其持久性有机污染物（PBT）（持久性，生物蓄积性和毒性）的特性，《斯德哥尔摩公约》已限制使用短链氯化石蜡（SCCP）。中（MCCP）和长链（LCCP）氯化石蜡用作替代产品。在这项工作中，我们通过确定配料之间CP技术混合物之间的分配系数，研究了被动分类中来自既定类别（2种SCCP，1 MCCP，1 LCCP和1 CP技术混合物涵盖所有类别）中的5种不同CP技术混合物的分配行为。有机硅和水（有机硅-水）以及有机物和水（有机硅-水）之间。我们表明，硅酮水和有机碳水的分配系数在不同类别的CP技术混合物之间重叠。这些结果表明，与限制型短链氯化石蜡相比，使用中的短链氯化石蜡具有更高的生物蓄积性。对于测试的混合物，氯含量和碳链长度均与Ksilicone水和Koc水均显示出显着相关性。

著录项

  • 来源
    《Environmental Science & Technology》 |2018年第17期|9713-9721|共9页
  • 作者

    Castro Mafalda; Breitholtz Magnus; Yuan Bo; Athanassiadis Ioannis; Asplund Lillemor; Sobek Anna;

  • 作者单位

    Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, S-10691 Stockholm, Sweden;

    Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, S-10691 Stockholm, Sweden;

    Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, S-10691 Stockholm, Sweden;

    Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, S-10691 Stockholm, Sweden;

    Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, S-10691 Stockholm, Sweden;

    Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, S-10691 Stockholm, 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

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