Análise da qualidade da água mineral de garrafas pet de quatro marcas comercializadas na região de Maringá/PR

Abstract

Mineral water is widely traded due to the belief in its higher quality compared to water distributed by sanitation companies. In some regions of the country, surveys point out the non-conformity of the quality presented in relation to what is established by Anvisa RDC 274/2005 and by Consolidation Ordinance n. 5/2017. The objective of this work is to analyze the water quality of four brands of mineral water marketed in the city of Maringá / PR to verify compliance with current legislation. The samples were related to 500 mL pet bottles purchased from local stores. The methodology used for pH was ABNT NBR 9251; potassium and sodium, SM 3030 / 3111B / 3111D / 3500-K / 3500; for calcium, SM 3500; for chloride, SM 4500-Cl; for fluoride, SM 4500; for magnesium, SM 3500; for nitrate, SM 4500; and for sulfate SM 4500-E.. 9 physical-chemical parameters were analyzed: pH, calcium, magnesium, potassium, sodium, sulfate, fluoride, nitrate and chloride. The values of these parameters were compared with those presented in the VMPs contained in the current legislation and also compared with the respective values of the labels. In general, all brands showed laboratory values close to the respective values on the label. All brands presented at least one parameter with divergence between the label and the experimental value obtained.