Cunha Davi G F, Grull Doron, Damato Murilo, Blum José R C, Eiger Sergio, Lutti José E I, Mancuso Pedro C S
Departamento de Hidráulica e Saneamento, Escola de Engenharia de São Carlos, Universidade de São Paulo, São Carlos, Brasil.
An Acad Bras Cienc. 2011 Dec;83(4):1465-80. doi: 10.1590/s0001-37652011000400032.
The management of urban water resources plays an important role for developing countries. The Tietê and Pinheiros Rivers (São Paulo, Brazil) are affected by domestic and industrial effluents and by the diffuse pollution. This research aimed to quantify 134 variables in the water of Tietê and Pinheiros Rivers (approximately 7,200 and 6,600 analyses, respectively) from August 2007 to December 2008. The idea was to verify if the fact that both rivers are located in the same basin is enough to consider the application of a single management plan for both. Data showed that the rivers presented significant anthropogenic interference. The results suggested that such rivers must be subjected to individual management plans since there were exclusive occurrences (variables that were only detected in one of the rivers). Moreover, there was a statistically significant difference between rainy and dry periods for eleven variables (p*<0.05, ANOVA), reinforcing the special importance of the temporal component within the monitoring program. It is expected that this study subsidize environmental recovery programs in the Tietê River, to which is recommendable to focus on prosecution of illegal wastewater releases, and in the Pinheiros River, to which special attention is suggested to the pollution derived from the pesticides load to the water body.
城市水资源管理对发展中国家至关重要。蒂埃特河和皮涅罗斯河（巴西圣保罗）受到生活污水、工业废水以及面源污染的影响。本研究旨在对2007年8月至2008年12月期间蒂埃特河和皮涅罗斯河的水体中的134个变量进行量化（分别约7200次和6600次分析）。目的是验证两条河流位于同一流域这一事实是否足以考虑对它们应用单一管理计划。数据表明，这些河流受到了显著的人为干扰。结果表明，由于存在排他性情况（仅在其中一条河流中检测到的变量），这些河流必须实施单独的管理计划。此外，11个变量在雨季和旱季之间存在统计学显著差异（p*<0.05，方差分析），这凸显了监测计划中时间因素的特殊重要性。预计本研究将为蒂埃特河的环境恢复计划提供支持，建议该计划重点关注非法废水排放的查处；对于皮涅罗斯河，建议特别关注农药对水体造成的污染。
