Monitoramento da qualidade da água em mananciais pertencentes à bacia hidrográfica do Tietê – Botucatu, SP
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Data
2010-12-08
Autores
Tófoli, Luciana Ambrósio de [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
O objetivo do presente trabalho foi monitorar a qualidade das águas em mananciais pertencentes à Bacia Hidrográfica do Tietê, na região de Botucatu-SP, a fim de identificar os trechos da bacia onde a qualidade da água possa estar mais alterada diante das interferências antrópicas. Espera-se também fornecer subsídios para o manejo e planejamento adequado para o uso múltiplo dos recursos hídricos, permitir o reconhecimento das áreas prioritárias para o controle da poluição hídrica e propor a implantação de medidas mitigadoras dos problemas de degradação ambiental. As amostragens de água e sedimento foram realizadas na Bacia hidrográfica do Tietê, em dois pontos do rio Tietê (P1 e P2) e, em um ponto do rio Capivara (P3), no município de Botucatu - SP. Considerado importante rio, apesar de receber grandes cargas de esgoto na região metropolitana de São Paulo, o Tietê é dotado de aproveitamento múltiplo das águas e facilidade de articulação com a região oeste. O rio Tietê, na comunidade do Rio Bonito fica a 35 km de Botucatu e faz parte da bacia hidrográfica da hidrovia Tietê - Paraná. O rio Capivara nasce em Botucatu- SP e deságua no rio Tietê. É considerado um dos mais importantes afluentes da margem esquerda da bacia do rio Tietê na região de Botucatu e possui cerca de 30 km de extensão. Foram avaliadas as seguintes variáveis: atributos organolépticos (aspecto visual da água e odor); variáveis fisico-químicas (cor, turbidez, temperatura do ar e da água, pH, condutividade elétrica, oxigênio dissolvido e demanda bioquímica de oxigênio); espécies químicas (carbono orgânico total, nitrato, nitrito, fosfato total e metais potencialmente tóxicos – na água e no sedimento – Cd, Co, Cu, Ni, Mn, Pb e Zn) e; microbiológicas (coliformes totais e termotolerantes), em três pontos diferentes estrategicamente preestabelecidos (P1, P2 e P3)...
The objective of this work was to monitor the water quality in water supply systems located in Tietê Watershed, around Botucatu City, Sao Paulo State, to identify areas where the water quality can be more degraded by human action. The work may supply assistance to the management and adequate planning to multiple uses of water resources, the recognition of priority areas for the hydric pollution control and propose mitigation measures for the environmental degradation. The water and sediment samplings were collected in Tietê Watershed, in two collect points in Tiete River (P1 e P2) and, one collect point in Capivara River (P3), in Botucatu City – SP. Tiete River is considered very important river and receives sewage from Sao Paulo, the Capital and surroundings. It has multiple use of its water and connects to the west region of the State. Rio Bonito Community is 35 kilometers from Botucatu and is at Tiete-Parana Watershed. Capivara River rises in Botucatu City and flows to Tiete River. It is one important left side affluent of Tiete Watershed and has 30 kilometers of extension. The following variables were analyzed: organoleptics properties (water aspect e odor); physic-chemicals (color, turbidity, air and water temperature, pH, electric condutivity, solved oxygen e demand oxygen biochemist); chemical species (organic carbon total, nitrite, nitrato, total fosfato e potentially toxic metals – in water and sediment – Cd, Co, Cu, Ni, Mn, Pb e Zn) e; micro biologics (totals and thermotolerant coliforms), in three different collect points strategically pre determinate (P1, P2 e P3). Samplings were collected quarterly, during two years (2008/2009), following a schedule according to the seasons. The criteria to choose the collect points were the Tiete River contribution related to human action rural e/or urban, also its physic conditions and easy access. Water quality analyses data were ... (Complete abstract click electronic access below)
The objective of this work was to monitor the water quality in water supply systems located in Tietê Watershed, around Botucatu City, Sao Paulo State, to identify areas where the water quality can be more degraded by human action. The work may supply assistance to the management and adequate planning to multiple uses of water resources, the recognition of priority areas for the hydric pollution control and propose mitigation measures for the environmental degradation. The water and sediment samplings were collected in Tietê Watershed, in two collect points in Tiete River (P1 e P2) and, one collect point in Capivara River (P3), in Botucatu City – SP. Tiete River is considered very important river and receives sewage from Sao Paulo, the Capital and surroundings. It has multiple use of its water and connects to the west region of the State. Rio Bonito Community is 35 kilometers from Botucatu and is at Tiete-Parana Watershed. Capivara River rises in Botucatu City and flows to Tiete River. It is one important left side affluent of Tiete Watershed and has 30 kilometers of extension. The following variables were analyzed: organoleptics properties (water aspect e odor); physic-chemicals (color, turbidity, air and water temperature, pH, electric condutivity, solved oxygen e demand oxygen biochemist); chemical species (organic carbon total, nitrite, nitrato, total fosfato e potentially toxic metals – in water and sediment – Cd, Co, Cu, Ni, Mn, Pb e Zn) e; micro biologics (totals and thermotolerant coliforms), in three different collect points strategically pre determinate (P1, P2 e P3). Samplings were collected quarterly, during two years (2008/2009), following a schedule according to the seasons. The criteria to choose the collect points were the Tiete River contribution related to human action rural e/or urban, also its physic conditions and easy access. Water quality analyses data were ... (Complete abstract click electronic access below)
Descrição
Palavras-chave
Agua - Qualidade - Botucatu (SP), Monitoramento ambiental, Abastecimento de água - Desenvolvimento - Aspectos ambientais - Brasil, Watershed, Water quality, Tietê river, Water resources, Monitoring
Como citar
TÓFOLI, Luciana Ambrósio de. Monitoramento da qualidade da água em mananciais pertencentes à bacia hidrográfica do Tietê – Botucatu, SP. 2010. viii, 104 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Ciências Agronômicas, 2010.