Avaliação preliminar de indicadores de qualidade de água da bacia hidrográfica formadora do Rio Guandu.

• Autor(a) principal: Ferreira, Wilsimara Antunes
• Data de Publicação: 2007
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UERJ
• Texto Completo: http://www.bdtd.uerj.br/handle/1/15744
• topic: water; pollution; Guandu River; quality control and water suplly.; água; poluição; Rio Guandu; controle de qualidade e abastecimento de água.; Água-Poluição;Água-Controle de Qualidade;Abastecimento de Água;Guandu,Rio.; CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA

Guandu River Hydrographic Basin is responsible for water supply of almost 9 million people from Rio de Janeiro, Nilópolis, São João de Meriti, Duque de Caxias, Belford Roxo and Nova Iguaçu cities. The rivers that flow into the basin area crosses urban and industrial areas, what may negatively rebound to the chemical features of the water after purification and distribution processes. Based on this, the present work intends to evaluate the quality of this noble resource's captitation aimed to human consumption. For this purpose there have been chosen four sampling spots, distributed in a way so it could be compared the spots under urban and industrial influence with spots where nature is preserved. During monthly tests (march 2006 to february 2007), 19 parameters have been analyzed: fluoride, sulphate, sulphide, cyanide, chloride, surfactants, mercury, lead, aluminum, copper, sodium, potassium, iron, manganese, phosphorus, nitrate, pH, turbidity and color. Despite the great load of pollution from urban and industrial areas, it has been proved that there were almost no influence of these components over the main dam. The water captated from Guandu River beginning, that should be used itself for public water supply, so it dissolves the anthropogenic residue. Considering that, the water captation is formally fitted to the captivation and therefore ready to go through the default purifying process aimed to human consumption. However, the non obligation of preserving the Guandu's Basin area exposed to pollution, may result in a growing demand for the dissolving purposes water leading to a background of advanced degradation.