...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental toxicology and chemistry >Applicability of Equilibrium Sampling in Informing Tissue Residues and Dietary Risks of Legacy and Current‐Use Organic Chemicals in Aquaculture
【24h】

Applicability of Equilibrium Sampling in Informing Tissue Residues and Dietary Risks of Legacy and Current‐Use Organic Chemicals in Aquaculture

机译：均衡抽样在水下养殖中通知组织残留和饮食风险的适用性和饮食风险

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

Equilibrium sampling based on silicone polydimethylsiloxane (PDMS) has been used to determine the concentrations of freely dissolved hydrophobic organic compounds (HOCs) and assess the thermodynamic potentials for bioaccumulation of these compounds in the aquatic environment. This allows the use of PDMS-based sampling techniques in assisting conventional sampling and extraction methods for the determination of the concentrations of HOCs in aquaculture products. The present study is an ex situ demonstration of how well PDMS can inform the tissue residues and dietary risks of legacy or current-use organic chemicals in aquaculture species from farm ponds in eastern China. For legacy contaminants such as polybrominated diphenyl ethers (PBDEs, n = 10), good agreement between the predicted concentrations based on PDMS and the measured lipid-normalized concentrations was observed for 60% of the studied biota, including both pelagic and benthic species. For pesticides currently used, such as pyrethroid (PE) (n = 4) and organophosphate pesticides (OPPs, n = 7), the measured tissue residues were consistently higher than those predicted by PDMS, possibly caused by the continuous input from the surroundings. For the organochlorine pesticides (OCPs, n = 5), the only detected chemical was also underestimated. Adjusted by ingestion rates of aquaculture products and toxicology data, the target hazard quotients of these chemicals predicted from PDMS were generally comparable to those derived from measured concentrations in tissue because of the predominance of PBDEs. Overall, PDMS-based equilibrium sampling offered an alternative approach for the prediction of tissue residues and dietary risks of PBDEs. Moreover, it should be applied with caution for PEs, OPPs, and OCPs. Improving the application of PDMS for these chemicals in farm ponds warrants future study. Environ Toxicol Chem 2020;00:1-9. (C) 2020 SETAC
机译：基于有机硅聚二甲基硅氧烷（PDMS）的平衡取样用于确定自由溶解的疏水性有机化合物（HOC）的浓度，并评估水生环境中这些化合物的生物累积的热力学电位。这允许使用基于PDMS的采样技术来辅助常规的取样和提取方法来确定水产养殖产品中HOC的浓度。目前的研究是，PDMS如何在中国东部农场池塘养殖种类中的PDMS可以在水产养殖种类中通知组织残留和饮食风险的原因示范。对于诸如多溴二苯醚（PBDE，N = 10）的传统污染物，观察到基于PDMS的预测浓度与测定的脂质归一化浓度之间的良好一致性，其中60％的研究生物群，包括骨盆和底栖物种。对于目前使用的农药，例如拟除虫菊酯（PE）（N = 4）和有机磷农药（OPPS，N = 7），所测量的组织残留量始终高于PDMS预测的组织残基，可能由周围环境的连续输入引起的那些。对于有机氯杀虫剂（OCP，N = 5），唯一检测到的化学也被低估了。通过摄入水产养殖产品和毒理学数据来调整，从PDMS预测的这些化学品的目标危险版本通常与来自PBDES的主要源自组织中的测量浓度的那些相当。总体而言，基于PDMS的平衡取样提供了一种替代方法，用于预测组织残留物和PBDE的膳食风险。此外，它应该针对PE，OPP和OCPS谨慎应用。在农场池塘中改善PDMS在农场池塘中的应用权证认证未来的研究。环境毒素化学2020; 00：1-9。 （c）2020 Setac

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2021年第1期|79-87|共9页
  • 作者

    Li Juan-ying; Zhang Li; Wang Qian; Xu Jiayan; Yin Jie; Chen Yiqin; Gong Yiwen; Kelly Barry C.; Jin Ling;

  • 作者单位

    Shanghai Ocean Univ Coll Marine Ecol & Environm Shanghai Peoples R China;

    Shanghai Ocean Univ Coll Marine Ecol & Environm Shanghai Peoples R China;

    Shanghai Ocean Univ Coll Marine Ecol & Environm Shanghai Peoples R China;

    Shanghai Ocean Univ Coll Marine Ecol & Environm Shanghai Peoples R China;

    Shanghai Ocean Univ Coll Marine Ecol & Environm Shanghai Peoples R China;

    Shanghai Ocean Univ Coll Marine Ecol & Environm Shanghai Peoples R China;

    Shanghai Ocean Univ Coll Marine Ecol & Environm Shanghai Peoples R China;

    Simon Fraser Univ Fac Environm Burnaby BC Canada;

    Hong Kong Polytech Univ Dept Civil & Environm Engn Hung Hom Kowloon Hong Kong Peoples R 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Polydimethylsiloxane; Porewater; Bioavailability; Aquaculture environment;

    机译：聚二甲基硅氧烷;沉皮水;生物利用度;水产养殖环境;

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