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El objetivo de este trabajo fue establecer la calidad descriptiva de agua de los ríos Cautín e Imperial que conforman la cuenca hidrográfica del río Imperial ubicada en la IX Región de la Araucanía-Chile. La caracterización fisicoquímica y microbiológica se efectuó fijando diez estaciones de mues...

The objective of this work was to establish the descriptive water quality of the Cautín and Imperial rivers which form the Imperial River hydrographic basin in the IX Region of Araucanía, Chile. Physicochemical and microbiological evaluations were made at ten sampling stations. Physicochemical pa...

Residues of five pesticides in surface water were surveyed during 2001 and 2003 in the Traiguén river basin in Southern Chile. Simazine, hexazinone, 2,4-D, picloram herbicides and carbendazim fungicide were selected through a pesticide risk classification index. Six sampling stations along the ri...

The chemical characteristics of the waters of Lake Budi (IX Region, Chile), in winter and summer were analysed in order to establish seasonal variations and determine their influence on the various phytoplankton components. On the basis of the results it was possible to indicate that the chemical...