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首页> 外文期刊>International Journal of Environmental Impacts: Management, Mitigation and Recovery >WATER QUALITY MONITORING IN URBAN BASINS AS SUPPORT FOR WATER RESOURCES MANAGEMENT: A CASE STUDY FROM SOUTHERN BRAZIL
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WATER QUALITY MONITORING IN URBAN BASINS AS SUPPORT FOR WATER RESOURCES MANAGEMENT: A CASE STUDY FROM SOUTHERN BRAZIL

机译：在城市流域水质监测对水资源管理的支持:一个案例来自巴西南部的研究

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One of the main challenges of water management in developing countries is to control the impact of the urban environment on the natural environment. Identifying sources of pollution in an urban watershed is a critical first step towards providing more integrated environmental planning, proper wastewater disposal and public water supplying. Thus, in this study we assessed 5-year water quality data from six urban river basins in Southern Brazil. In addition to the principal component analysis (PCA), three indexes were evaluated individually: Water Quality Index (WQI), Toxicity Index (TI) and CCME WQI framework (CCME WQI). In order to evaluate the effect of land use, the monitoring sites were assessed according to the urbanization criteria. The application of PCA revealed the existence of six components, explaining 73.78% of data variation. The component that explains most of the variation in water quality (30.80%) is associated with domestic wastewater. The second component showed a strong dependence (29.44%) on industrial activities such as electroplating and metalworking in determining the water quality, while the other components are related to certain industrial and agricultural activities. Likewise, the application of WQIs demonstrated similar results to the PCA. WQI and TI showed scenarios of concern regarding public supply. CCME WQI presented a significant disparity between the assessed watersheds and the Brazilian legal framework goals. Studies in this field significantly contribute to the establishment of environmental licensing criteria, by demonstrating patterns and environmental features. In addition to it, one can identify which watersheds demand greater attention with respect to control and recovery of proper environmental conditions. Furthermore, it can provide support for revisions in urban and watershed planning, especially in qualitative aspects eluding conflicts over water use in future scenarios.
机译：水资源管理的主要挑战之一发展中国家控制的影响城市环境的自然环境。确定污染源在城市流域是一个关键的第一步提供更多的集成环境规划,适当的废水处置和公共供水供应。从六个城市河流流域水质数据巴西南部。成分分析(PCA),三个指标单独评估:水质指数(水质指数)、毒性指数(TI)和CCME水质指数框架(CCME水质指数)。土地使用,监控网站进行评估根据城市化的标准。应用主成分分析显示6的存在组件,解释数据变异的73.78%。的组件可以解释大部分的变种在水中(30.80%)与质量国内废水。强烈的依赖工业(29.44%)如电镀和活动在确定水质金属加工,而某些相关的其他组件工业和农业活动。水质指数的应用证明了相似主成分分析结果。关于公共供给的问题。提出了一个明显的差距评估流域和巴西法律框架的目标。显著的建立做出贡献环境许可标准演示模式和环境特性。流域需求更多的关注对控制和恢复的环境条件。在城市和提供支持的修正流域规划,特别是在定性在用水方面规避冲突未来的场景。

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