Colin Nicole, Maceda-Veiga Alberto, Flor-Arnau Núria, Mora Josep, Fortuño Pau, Vieira Cristiana, Prat Narcís, Cambra Jaume, de Sostoa Adolfo
Department of Animal Biology, Facultat de Biologia, Universitat de Barcelona (UB), 08028 Barcelona, Spain; Biodiversity Research Institute (IRBio), Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain.
Biodiversity Research Institute (IRBio), Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain; Department of Integrative Ecology, Estación Biológica de Doñana (EBD-CSIC), 41092 Sevilla, Spain.
Ecotoxicol Environ Saf. 2016 Oct;132:295-303. doi: 10.1016/j.ecoenv.2016.06.017. Epub 2016 Jun 23.
The textile industry is one of the largest sectors globally, representing up to 20% of industrial water pollution. However, there is limited insight into how fluvial ecosystems respond and recover from this impact. From summer 2012 to spring 2013, we examined water quality and ecological status upstream and 1.5km downstream the input of a textile industry wastewater treatment plant (WWTP) in Ripoll River, NE Spain. The ecological status was determined via diversity measures and 10 biotic indices based on diatoms, macrophytes, macroinvertebrates and fish. Our results showed that the WWTP severely deteriorated water quality and biological communities at the discharge site, but that they improved at 1.5km downstream. Severity also varied across taxa and seasons, being fish the most affected taxa and spring the season with the best ecological status. The strong correlation amongst water quality variables and many biotic indices across taxa indicated that this is a chronic pollution event affecting multiple trophic levels. Thus, this study suggests that there is an urgent need to invest in wastewater treatment in this industry to preserve the ecological integrity of Ripoll River and especially its fish fauna. Likewise, it illustrates the diagnostic power of biotic indices based on diatoms, macroinvertebrates and fish, as driven by the European Water Framework Directive.
纺织业是全球最大的产业部门之一，其工业水污染占比高达20%。然而，对于河流生态系统如何响应并从这种影响中恢复，人们了解有限。2012年夏季至2013年春季，我们对西班牙东北部里波尔河一家纺织工业废水处理厂（WWTP）上游及下游1.5公里处的水质和生态状况进行了研究。生态状况通过多样性指标以及基于硅藻、大型植物、大型无脊椎动物和鱼类的10种生物指数来确定。我们的结果表明，废水处理厂严重恶化了排放点的水质和生物群落，但在下游1.5公里处有所改善。严重程度在不同分类群和季节也有所不同，鱼类是受影响最大的分类群，春季的生态状况最佳。水质变量与跨分类群的许多生物指数之间的强相关性表明，这是一个影响多个营养级的慢性污染事件。因此，本研究表明，迫切需要对该行业的废水处理进行投资，以保护里波尔河的生态完整性，尤其是其鱼类群落。同样，它说明了欧洲水框架指令推动的基于硅藻、大型无脊椎动物和鱼类的生物指数的诊断能力。
