Section of Toxicology and Environmental Chemistry, Department of Pharmaceutics and Analytical Chemistry, Faculty of Pharmaceutical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
Sci Total Environ. 2011 May 15;409(12):2343-56. doi: 10.1016/j.scitotenv.2011.02.008. Epub 2011 Mar 31.
Dichlobenil is an herbicide which has been applied in many countries for weed control in non-agricultural areas such as railroads, car parks and private gardens. In the aquatic environment it has been used for control of floating aquatic weeds. Dichlobenil is relatively persistent in the environment, and primarily bound to solid matrices. Of great concern is its main degradation product 2,6-dichlorobenzamide which is water soluble and therefore transported downward in aquifers, contaminating groundwater resources. It is often found in concentrations exceeding 0.1 μg/L, which is the maximum allowed concentration of pesticides in groundwater set by the European Commission. In many countries, the usage of dichlobenil and the problems associated with groundwater contamination by 2,6-dichlorobenzamide have resulted in intensive research and monitoring of these compounds. This review gives the first overview of analytical strategies available for determining dichlobenil and 2,6-dichlorobenzamide in environmental matrices. It also summarizes studies presenting measured environmental concentrations of dichlobenil and 2,6-dichlorobenzamide identified in the literature during the past two decades. Thereby a preliminary picture of the distribution of dichlobenil and 2,6-dichlorobenzamide in the environment can be outlined for the first time.
敌草隆是一种除草剂，已在许多国家用于控制铁路、停车场和私人花园等非农业区域的杂草。在水生环境中，它被用于控制漂浮水生杂草。敌草隆在环境中具有相对持久性，主要与固体基质结合。人们非常关注的是它的主要降解产物 2,6-二氯苯甲酰胺，它是水溶性的，因此会向下迁移到含水层中，污染地下水资源。它经常以超过 0.1μg/L 的浓度被发现，这是欧盟委员会规定的地下水中允许的最大农药浓度。在许多国家，由于敌草隆的使用以及 2,6-二氯苯甲酰胺对地下水的污染问题，导致了对这些化合物的密集研究和监测。这篇综述首次概述了可用于测定环境基质中敌草隆和 2,6-二氯苯甲酰胺的分析策略。它还总结了过去二十年文献中报道的测量敌草隆和 2,6-二氯苯甲酰胺的环境浓度的研究。从而可以首次概述敌草隆和 2,6-二氯苯甲酰胺在环境中的分布情况。
