• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of environmental analytical chemistry >Removal of dissolved pesticide mixtures by a stormwater wetland receiving runoff from a vineyard catchment: an inter-annual comparison
【24h】

Removal of dissolved pesticide mixtures by a stormwater wetland receiving runoff from a vineyard catchment: an inter-annual comparison

机译：雨水湿地去除葡萄园流域径流的溶解农药混合物的年际比较

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

Wetlands can collect contaminated runoff from agricultural catchments and have intrinsic physical, chemical and biological retention and removal processes useful for mitigating pesticides. However, knowledge about the ability of stormwater wetlands to mitigate pesticide mixtures in runoff is currently very limited. We show here that stormwater wetlands that primarily serve for flood protection can also be effective tools for reducing concentrations and removing loads of runoff-related pesticides and some of their degradation products into downstream aquatic ecosystems. Dissolved concentrations and loads of seven fungicides, six herbicides and four degradation products in runoff from a vineyard catchment were continuously recorded at the inlet and the outlet of the stormwater wetland during two successive periods of pesticide application (April to June). Reduction of pesticide concentrations by the wetland ranged from 50% (simazine) to 100% (azoxystrobin, cymoxanil, cyprodinil, gluphosinate, terbuthylazine and tetra-conazole). Removal rates of dissolved load ranged from 26% for aminomethyl-phosphonic acid (AMPA) to 100% (azoxystrobin, cymoxanil, cyprodinil, diuron, 1-(3,4-dichlorophenyl)-3-methylurea (DCPMU), gluphosinate, kresoxym methyl, terbuthylazine and tetraconazole). More than 77% of the input mass of total suspended solids was retained, underscoring the capability of the wetland to trap pesticide-laden particles via sedimentation. Inter-annual change in the removal of AMPA, isoxaben, kresoxim methyl and simazine was mainly linked to the larger vegetal cover in 2010. Our results demonstrate that stormwater wetlands can remove pesticide mixtures in agricultural runoff, although removal of individual pesticides can vary over time, depending on the characteristics of runoff events and the vegetation cover.
机译：湿地可从农业流域收集受污染的径流，并具有固有的物理，化学和生物保留和清除过程，可用于缓解农药。但是，目前关于雨水湿地减轻径流中农药混合物能力的知识非常有限。我们在这里表明，主要用于防洪的雨水湿地也可以成为降低浓度和减少径流相关农药及其某些降解产物进入下游水生生态系统的有效工具。在连续两个农药施用期（4月至6月）期间，在雨水湿地的入口和出口连续记录了葡萄园集水区径流中7种杀菌剂，6种除草剂和4种降解产物的溶解浓度和负荷。湿地降低的农药浓度范围为50％（西玛西嗪）至100％（嘧菌酯，环孢沙胺，环丙地尼，草铵膦，丁苯噻嗪和四康唑）。溶解负荷的去除率范围从氨基甲基膦酸（AMPA）的26％到100％（嘧菌酯，环孢沙胺，环丙啶，地龙，1-（3,4-二氯苯基）-3-甲基脲（DCPMU），草铵膦，克雷索姆甲基，叔丁嗪和四康唑）。保留了总悬浮固体输入质量的77％以上，这突出说明了湿地通过沉降捕集载有农药的颗粒的能力。在2010年，AMPA，异沙宾，甲基苯丙氨酸和辛嗪的去除量的年际变化主要与较大的植被覆盖有关。我们的结果表明，雨水湿地可以去除农业径流中的农药混合物，尽管个别农药的去除量会随时间变化，取决于径流事件和植被的特征。

著录项

  • 来源
  • 作者

    Elodie Maillard; Sylvain Payraudeau; Floro Ortiz; Gwenael Imfeld;

  • 作者单位

    Laboratory of Hydrology and Geochemistry (LHyGeS), University of Strasbourg/ENGEES, CNRS, 1, rue Blessig, F-67 084 Strasbourg, France;

    Laboratory of Hydrology and Geochemistry (LHyGeS), University of Strasbourg/ENGEES, CNRS, 1, rue Blessig, F-67 084 Strasbourg, France;

    Laboratory of Hydrology and Geochemistry (LHyGeS), University of Strasbourg/ENGEES, CNRS, 1, rue Blessig, F-67 084 Strasbourg, France;

    Laboratory of Hydrology and Geochemistry (LHyGeS), University of Strasbourg/ENGEES, CNRS, 1, rue Blessig, F-67 084 Strasbourg, France;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    load; glyphosate remediation; wetland; sorption; phragmites; pollution; best management practice;

    机译：加载;草甘膦修复;湿地吸附芦苇污染;最佳管理实践;

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