文章基本信息

标题：Seasonal variations of water quality of Chocancharava River (Cuarto River), Córdoba, Argentina
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作者：Claudia Rodríguez ; Miguel Mancini ; Carlos Prosperi 等
期刊名称：Ecología Austral
印刷版ISSN：1667-782X
电子版ISSN：1667-7838
出版年度：2002
卷号：12
期号：1
页码：65-72
出版社：Asociacion de Ecologia Argentina
摘要：Chocancharava River (Cuarto River) joints Tercero River to form Carcarañá River, an important affluent of Paraná River. The aim of this work was to evaluate bacteriological, phycological and physical-chemical variations of Chocancharava River along the year, in order to establish the potential risk for human and animal health. According to the effluents received by this environment, six sampling stations were selected. The abundance of total coliform and faecal coliform microorganisms showed variations along the year, exceeding admissible levels at stations located downstream the city discharges. A similar situation was observed for Streptococcus faecalis. Algal counting did not show similar values at the sampling stations evaluated along the year; however, genera belonging to the Bacillariophyceae were predominant. Physical parameters were found to be between admissible limits, except for sites receiving effluents. Considering their chemical characteristics, water was classified as hypohaline and sodic bicarbonated. According to the results obtained, three of the sampling stations (km 597, km 587 and Paso del Durazno) do not accomplish established limits of quality