Water quality in watershed of the Jaboatão River (Pernambuco, Brazil): a case study
2003
Antonio Donizetti Gonçalves de Souza | José Galizia Tundisi
The purpose of the present work was to evaluate anthropogenic influences on the water quality and to offer a subsidy to the establishment of water quality goals in the Jaboatão River Basin (Pernambuco State, Brazil). Eight sampling points were established and were sampled monthly during one hydrological cycle (March/98-February/99). The following variables were analyzed: temperature, pH, conductivity, chlorine, alkalinity, dissolved oxygen, biochemical oxygen demand, fecal coliforms, nitrate, total phosphorus and total solids. The most critical variables related to water quality objectives were dissolved oxygen, fecal coliforms and total phosphorus. Maps of land use, legally protected areas, area industries, and water withdrawals were utilized in order to propose division of the watershed into regions and to provide water quality management information.<br>O presente estudo teve como objetivos avaliar as influências antrópicas sobre a qualidade da água na bacia do rio Jaboatão (Pernambuco, Brasil) e fornecer subsídios ao enquadramento dos corpos d'água em classes de usos. Foram realizadas coletas mensais de água durante o período de março/98 a fevereiro/99 em oito estações de amostragem. As seguintes variáveis foram medidas: temperatura, pH, condutividade, alcalinidade, Cl, oxigênio dissolvido, DBO, coliformes fecais, nitrato, fósforo total e sólidos totais. As variáveis oxigênio dissolvido, coliformes fecais e fósforo total, foram as mais críticas para o enquadramento. Foram delimitados grupos de usos da água na bacia e sugeridas classes de qualidade para cada grupo, fornecendo, desta maneira, elementos para auxiliar o gerenciamento da qualidade da água
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Directory of Open Access Journals