Heterocontrole da fluoretação das águas de abastecimento público no Município de Cascavel, Paraná

Abstract

This is a quantitative and descriptive research-extension, carried out between October 2017 and September 2018, with the objective of evaluating the fluoride concentration by the principles of heterocontrol, in the public water supply of the municipality of Cascavel, in the state of Parana, Brazil. Six Basic Health Units were considered for the collection of samples, considering some close and others distant from the treatment stations, with monthly and duplicate collections. The average maximum temperatures were around 19.5 ° C; therefore, the fluoride content in the water should be between 0.65 and 0.94 ppm. 144 samples were analyzed, of which 46 (31.9%) samples were above the 0.94 ppm limit and 6 (4.2%) samples were below the 0.65 ppm limit. In the months of April and June, there was the largest number of samples with levels above the limit 0.94 ppm F, and the months of July and August presented the minimum values. Despite the majority (63.9%) of the samples being within the standards, there is a need to perform heterocontrol to subsidize the city and the Companhia de Saneamento do Parana.