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Influence of Extreme Strength in Water Quality of the Jucazinho Reservoir, Northeastern Brazil, PE

Federal Institute of Pernambuco—Campus Pesqueira, Pesqueira 55200-000, Brazil
Federal Institute of Pernambuco—Campus Recife, Recife 50740-540, Brazil
Polytechnic School of Pernambuco, University of Pernambuco, Recife 50720-00, Brazil
Agreste Academic Campus, Federal University of Pernambuco, Caruaru 55002-970, Brazil
Department of Electrical Engineering, Federal University of Pernambuco, Recife 50740-530, Brazil
Author to whom correspondence should be addressed.
Water 2017, 9(12), 955;
Received: 28 August 2017 / Revised: 22 November 2017 / Accepted: 27 November 2017 / Published: 7 December 2017
PDF [1793 KB, uploaded 7 December 2017]


The Jucazinho reservoir was built in the State of Pernambuco, Northeastern Brazil, to water supply in a great part of the population that live in the semi-arid of Pernambuco. This reservoir controls the high part of Capibaribe river basin, area affected several actions that can compromise the reservoir water quality such as disposal of domestic sewage, industrial wastewater and agriculture with use of fertilizers. This study aimed to identify the factors that lead to water quality of the Jucazinho reservoir using a database containing information of nine years of reservoir water quality monitoring in line with a multivariate statistical technique known as Principal Component Analysis (PCA). To use this technique, it was selected two components which determine the quality of the reservoir water. The first principal component, ranging from an annual basis, explained the relationship between the development of cyanobacteria, the concentration of dissolved solids and electrical conductivity, comparing it with the variation in the dam volume, total phosphorus levels and turbidity. The second principal component, ranging from a mensal basis, explained the photosynthetic activity performed by cyanobacteria confronting with the variation in the dam volume. It observed the relationship between water quality parameters with rainfall, featuring an annual and seasonal pattern that can be used as reference to behaviour studies of this reservoir. View Full-Text
Keywords: water supply; principal component analysis; Jucazinho reservoir water supply; principal component analysis; Jucazinho reservoir

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De Melo, R.R.C.; Rameh Barbosa, I.M.B.; Ferreira, A.A.; Lee Barbosa Firmo, A.; Da Silva, S.R.; Cirilo, J.A.; De Aquino, R.R.B. Influence of Extreme Strength in Water Quality of the Jucazinho Reservoir, Northeastern Brazil, PE. Water 2017, 9, 955.

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