...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water Research >A review on emerging contaminants in wastewaters and the environment: Current knowledge, understudied areas and recommendations for future monitoring
【24h】

A review on emerging contaminants in wastewaters and the environment: Current knowledge, understudied areas and recommendations for future monitoring

机译：废水和环境中新兴污染物的综述：当前知识，研究不足的领域以及未来监测的建议

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

This review identifies understudied areas of emerging contaminant (EC) research in wastewaters and the environment, and recommends direction for future monitoring. Non-regulated trace organic ECs including pharmaceuticals, illicit drugs and personal care products are focused on due to ongoing policy initiatives and the expectant broadening of environmental legislation. These ECs are ubiquitous in the aquatic environment, mainly derived from the discharge of municipal wastewater effluents. Their presence is of concern due to the possible ecological impact (e.g., endocrine disruption) to biota within the environment. To better understand their fate in wastewaters and in the environment, a standardised approach to sampling is needed. This ensures representative data is attained and facilitates a better understanding of spatial and temporal trends of EC occurrence. During, wastewater treatment, there is a lack of suspended particulate matter analysis due to further preparation requirements and a lack of good analytical approaches. This results in the under-reporting of several ECs entering wastewater treatment works (WwTWs) and the aquatic environment. Also, sludge can act as a concentrating medium for some chemicals during wastewater treatment. The majority of treated sludge is applied directly to agricultural land without analysis for ECs. As a result there is a paucity of information on the fate of ECs in soils and consequently, there has been no driver to investigate the toxicity to exposed terrestrial organisms. Therefore a more holistic approach to environmental monitoring is required, such that the fate and impact of ECs in all exposed environmental compartments are studied. The traditional analytical approach of applying targeted screening with low resolution mass spectrometry (e.g., triple quadrupoles) results in numerous chemicals such as transformation products going undetected. These can exhibit similar toxicity to the parent EC, demonstrating the necessity of using an integrated analytical approach which compliments targeted and non-targeted screening with biological assays to measure ecological impact. With respect to current :toxicity testing protocols, failure to consider the enantiomeric distribution of chiral compounds found in the environment, and the possible toxicological differences between enantiomers is concerning. Such information is essential for the development of more accurate environmental risk assessment. (C) 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/).
机译：这篇综述指出了对废水和环境中新兴污染物（EC）研究的未充分研究领域，并提出了未来监测的方向。由于持续不断的政策举措和预期中环境立法的扩大，非监管的痕量有机EC（包括药品，非法药物和个人护理产品）受到关注。这些EC在水生环境中无处不在，主要来自市政废水的排放。由于对环境中生物群的可能的生态影响（例如，内分泌干扰），它们的存在令人关注。为了更好地了解它们在废水和环境中的命运，需要一种标准化的采样方法。这样可以确保获得代表性数据，并有助于更好地理解EC发生的时空趋势。在废水处理过程中，由于需要进一步的准备工作，而且缺乏良好的分析方法，因此缺乏悬浮颗粒物分析。这导致进入废水处理厂（WwTWs）和水生环境的几个EC的报告不足。此外，污泥可在废水处理过程中充当某些化学物质的浓缩介质。大多数处理后的污泥直接用于农业土地，而无需进行EC分析。结果，关于土壤中EC的命运的信息很少，因此，没有驱动力来研究对暴露的陆地生物的毒性。因此，需要一种更全面的环境监测方法，以便研究EC在所有裸露环境区室中的命运和影响。使用低分辨率质谱（例如三重四极杆）进行靶向筛选的传统分析方法导致许多化学药品（如转化产物）无法检测到。这些可以表现出与母体EC相似的毒性，表明使用集成分析方法的必要性，该方法可与针对性和非针对性的筛选以及生物测定法相结合来衡量生态影响。关于当前的毒性测试方案，未考虑在环境中发现的手性化合物的对映体分布以及对映体之间可能的毒理学差异。此类信息对于开发更准确的环境风险评估至关重要。 （C）2014作者。由Elsevier Ltd.发布。这是CC BY许可（http://creativecommons.org/licenses/by/3.0/）下的开放获取文章。

著录项

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