INFLUENCE OF URBANIZATION IN THE QUALITY OF THE SURFACE WATER OF BOA VISTA, RORAIMA, BRAZILIAN AMAZON
Keywords:
Amazônia, Brasil, urbanização, poluíção hídrica, rio Branco, Análise MultivariadaAbstract
The increasing urbanization process of the city of Boa Vista (Roraima) has been interfering greatly in the natural conformation of the Branco River and its tributaries. Determining the influence of urbanization on the quality of surface water that supplies this city is essential to achieve a better public management of local water resources. In this way, 18 points of water collection were established along the Branco River and its main tributaries. The collections were monthly (January to June / 2006). The water quality parameters used as independent variables were biochemical oxygen demand, chloride, nitrate, total dissolved solids, electrical conductivity, dissolved oxygen, alkalinity, hydrogenation potential, temperature, turbidity and thermotolerant coliforms. (Principal Component Analysis - PCA and Hierarchical Cluster Analysis - HCA) indicated a clear separation between the collection points, forming three groups: (i) G1; with good water quality index (IQA) and multivariate analysis quality level, located outside the urban environment, (ii) G2; with a medium quality level, close to the urban environment and with public health resorts and (iii)G3; with a very poor quality level, inserted in the urban environment . The variables responsible for this grouping were biochemical oxygen demand, conductivity, total dissolved solids, thermotolerant nitrate, chloride and coliforms. There was an indication that sewage pollution is primarily responsible for the reduction of surface water quality. Information of this nature are important steps in understanding the impact of urbanization on local water resources and are the basis for the construction of public policies that mitigate the negative impacts of urban sprawl without planning.
Downloads
Published
Issue
Section
License
Copyright (c) 2019 Revista de Gestão de Água da América Latina (Water Management Journal in Latin America)
This work is licensed under a Creative Commons Attribution 4.0 International License.
When sending the manuscript, notice that:
To be responsible for the other authors, when applicable, as co-responsible for the technical and scientific content of the article according to Article 5 of Brazilian Law N. 9610, regarding Copyright.
All statements published in the manuscript are the sole responsibility of the authors. However, all published material becomes the property of REGA, which reserves the copyright. Therefore, no material published in REGA may be reproduced without the written permission of REGA. All authors of articles submitted to REGA must sign a Copyright Transfer Agreement, which will take effect from the date of acceptance of the article. This term will be requested by REGA prior to the publication of the article. The author responsible for the article will receive, free of charge, the electronic record of the publication (in PDF format).
All articles published open access will be immediately and permanently free for everyone to read, download, copy and distribute. Permitted reuse is defined by your choice of one of the following user licenses:
Creative Commons Attribution (CC BY): lets others distribute and copy the article, to create extracts, abstracts, and other revised versions, adaptations or derivative works of or from an article (such as a translation), to include in a collective work (such as an anthology), to text or data mine the article, even for commercial purposes, as long as they credit the author(s), do not represent the author as endorsing their adaptation of the article, and do not modify the article in such a way as to damage the author’s honor or reputation.
Author Rights
For open access publishing this journal uses an exclusive licensing agreement. Authors will retain copyright alongside scholarly usage rights and REGA will be granted publishing and distribution rights.
Author Self-Archiving Policy
This journal permits and encourages authors to post items submitted to the journal on personal websites and institutional or funder repositories after publication. The final published PDF version should be used and bibliographic details that credit the publication in this journal should be included.
