Contiguous urban rivers should not be necessarily submitted to the same management plan: the case of Tietê and Pinheiros Rivers (São Paulo-Brazil)

Anais da Academia Brasileira de Ciências

Davi G. F. Cunha²  Doron Grull¹  Murilo Damato¹  José R. C. Blum¹  Sergio Eiger¹  José E.i. Lutti¹  Pedro C. S. Mancuso¹ 

[1] ,Universidade de São Paulo Escola de Engenharia de São Carlos Departamento de Hidráulica e SaneamentoSão Carlos SP ,Brasil

关键词: environmental monitoring;    metropolitan region of São Paulo (MRSP);    urban rivers;    water pollution;    water quality;    watershed management;    monitoramento ambiental;    região metropolitana de São Paulo (RMSP);    rios urbanos;    poluição da água;    qualidade da água;    gestão de bacias hidrográficas;   

DOI  :  10.1590/S0001-37652011000400032

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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