Heterocontrole da fluoretação da água de abastecimento público em cidades do estado de Goiás, Brasil
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Data
2018-11
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Resumo
The addition of fluoride to the public
water supply is a method used for reducing tooth
decay. In this sense, the control of fluoridation
is important for maintaining its efficiency and,
at the same time, for avoiding the risk of fluorosis as a result of the consumption of water with
excess of fluoride. The objective of this study was
to evaluate the adequacy of fluoride levels in
the water distributed to populations of the state
of Goiás, Brazil. Towards this aim, 5,039 water
samples collected between 2011 and 2013 in 225
municipalities of the state of Goiás were analyzed for fluoride level. The results were assessed
with regard to season, type of water source and
geographic location. Fluoride levels were found to
vary between complete absence and 2.5 mg F/L,
with 28.2% of the samples being between 0.6 and
0.8 mg F/L, and 39.1% between 0.55 and 0.84 mg
F/L. The rainy season produced a greater number of atypical results and higher values than the
dry period. The systems supplied by groundwater
sources were shown to have a limited control of
fluoride concentration compared to systems supplied by surface water sources. Lower concentrations of fluoride were found in samples collected
in the North and East Mesoregions of Goiás, with
less than 7.5% being between 0.6 and 0.8 mg F/L,
which systems are mainly supplied by groundwater sources with fluoride addition.
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Palavras-chave
Fluorosis, Fluoride, Caries, Water treatment, Fluorose, Fluoreto, Cárie, Tratamento da água
Citação
SCALIZE, Paulo Sérgio et al. External control of fluoridation in public water supply systems in the state of Goiás, Brazil. Ciência & Saúde Coletiva, Rio de Janeiro, v. 23, n. 11, p. 3849-3860, 2018. DOI: 10.1590/1413-812320182311.24712016. Disponível em: https://www.scielo.br/j/csc/a/vzgvwPXWnj68vC43KGyt3qD/?lang=en. Acesso em: 31 jan. 2025.