《Water Research》刊登“污水处理厂流出物中的有机污染物对水生无脊椎动物群落的影响”

作者：Katja Bunzel, Mira Kattwinkel, Matthias Liess

刊物：《Water Research》，2013年，47卷第2期，597-606页

关键词：杀虫剂；有机污染；大型无脊椎动物；SPEAR；点源；径流

摘要：杀虫剂是河流生态系统健康的头号杀手，它们会经扩散性农业面源或城市污水处理厂之类的点源进入地表水。然而，目前还未出现有关受杀虫剂污染的污水处理厂流出物对大型无脊椎动物群落的生态影响的研究。基于德国黑森州政府对328个监控点的监控数据，我们将杀虫剂对于污水处理厂下游3km处大型无脊椎动物群落结构的长期影响加以识别。同时，借助基于特征的SPEAR杀虫剂指标对这些影响进行评价，此指标是评价生物群落受杀虫剂影响的有效工具。此外，基于德国腐生指标的研究表明，尽管几世纪以来污水处理技术获得了长足进步，城市污水处理厂仍然是耗氧有机污染物的重要来源。总体上，本文研究结果进一步强调了在《欧盟水框架指令》指导下的流域管理中，需要考虑城市污水处理厂，以期大幅改善欧洲溪流和河流的生态化学状况。

Effects of organic pollutants from wastewater treatment plants on aquatic invertebrate communities

Authors: Katja Bunzel, Mira Kattwinkel, Matthias Liess

Journal: Water Research, Volume 47, 2013, Issue 2, pages 597-606

Key words: Pesticides; Organic pollution; Macroinvertebrates; SPEAR; Point source; Runoff

Abstract: Pesticides are a major stressor for stream ecosystem health. They enter surface waters from diffuse agricultural sources but also from point sources such as municipal wastewater treatment plants (WWTPs). However, to date, no studies have focused on the ecological effects of pesticide-contaminated WWTP effluent on macroinvertebrate communities. On the basis of governmental monitoring data of 328 sites in Hesse, Germany, we identified insecticidal long-term effects on the structure of the macroinvertebrate community up to 3 km downstream of WWTPs. The effects were quantified using the trait-based SPEAR pesticides index, which has been shown to be an effective tool for identifying community effects of pesticide contamination. In addition, based on the German Saprobic Index, we revealed that WWTPs are still an important source of oxygen-depleting organic pollution, despite the extensive technological improvements in wastewater management over several centuries. In general, our findings emphasize the need to take municipal WWTPs into consideration in the management of river basins under the EU Water Framework Directive to achieve good ecological and chemical status for European streams and rivers.

原文链接：http://www.sciencedirect.com/science/article/pii/S0043135412007610

翻译：杨立疆；审核：翟家齐