Avaliação dos principais aspectos associados ao consumo de água nos municípios de Minas Gerais e do Brasil

Abstract

The use of water for domestic use is of fundamental importance for society, especially in urban areas where access to this resource occurs through a water network. The present work intends to investigate aspects that influence the consumption of domestic water in Brazil, having as reference two territorial cuts, namely, the municipalities of Minas Gerais and the Brazilian municipalities, based on the information registered in the NationalSystem of Sanitation Information (SNIS) for the year 2015. For this purpose, global regression and spatially weighted regression (GWR) techniques are applied in order to determine the parameters capable of explaining the municipal water consumption in these two space cuts. The best fit models indicate that municipal water consumption in 2015 is basically explained by the demand (population with access to the water network), the existing infrastructure (extension of the water network) and the average tariffpracticed, and what climatic and have little influence on this consumption during the year.