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Variabilidade espacial e temporal de parâmetros físico-químicos nos rios Turvo, Preto e Grande no estado de São Paulo, Brasil

2010; Brazilian Chemical Society; Volume: 33; Issue: 9 Linguagem: Inglês

10.1590/s0100-40422010000900002

ISSN

1678-7064

Autores

Mariele B. Campanha, Camila Almeida Melo, Altair B. Moreira, Renata Flavia Milani Silva Ferrarese, Amanda Maria Tadini, Elaine V. Garbin, Márcia Cristina Bisinoti, Edenir Rodrigues Pereira‐Filho,

Tópico(s)

Water Quality and Pollution Assessment

Resumo

This work aims to study spatial and seasonal variability of some chemical-physical parameters in the Turvo/Grande watershed, São Paulo State, Brazil.Water samples were taken monthly, 2007/07-2008/11, from fourteen sampling stations sited along the Turvo, Preto and Grande Rivers and its main tributaries.The Principal Component Analysis and hierarchical cluster analysis showed two distinct groups in this watershed, the first one associated for the places more impacted by domestic effluent (lower levels of dissolved oxygen in the studied region).The sampling places located to downstream (Turvo and Grande rivers) were discriminate by diffuse source of pollutants from flooding and agriculture runoffs in a second group.

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