[Fluoride concentration in bottled water on the market in the municipality of São Paulo].
The objective of the study was to evaluate the fluoride concentration in bottled water available on the market, in comparison with the values printed on the bottle label. Two hundred and twenty-nine water samples were collected from 35 brands available in several supermarkets, grocery stores and snack bars with high turnover in different regions of the municipality of São Paulo, Southeastern Brazil, in 2006. Fluoride concentrations were determined by duplicate analysis using an ion-specific electrode. The fluoride concentrations ranged from 0.01 to 2.04 mg/l, with significant differences between the values stipulated on labels and those found in the analyses. These results emphasize the importance of controls over fluoride levels in bottled water enforced by the sanitary surveillance agency.
Grec
Roberto Henrique da Costa
RH
Hospital de Reabilitação de Anomalias Craniofaciais, Universidade de São Paulo, Bauru, SP, Brasil.
de Moura
Patrícia Garcia
PG
Pessan
Juliano Pelim
JP
Ramires
Irene
I
Costa
Beatriz
B
Buzalaf
Marília Afonso Rabelo
MA
D001938:Brazil; D005457:Fluoridation; D005459:Fluorides / Q000032:analysis*; D006306:Health Surveys; D006801:Humans; D008900:Mineral Waters / Q000032:analysis* / Q000592:standards; D011356:Product Labeling / Q000592:standards*; D011786:Quality Control
D008900:Mineral Waters; D005459:Fluorides