[Evaluation of fluoride levels in the public water supply in São Luis Island, Maranhão State, Brazil].
The aim of the present study was to evaluate the fluoride levels in public water supply in São Luís island, Maranhão State, Brazil, during the month of October of 2006. A stratification sampling was applied, considering the water treatment station (06) and the different districts (46). For fluoride analysis it was used a specific ion electrode. The fluoride concentration varied for 0.05 to 0.84 ppm. Only one water treatment station (Italuís) presented an ideal concentration of fluoride. It was concluded that the fluoride levels need adjustments, evidencing that it is essential an external control for monitoring of those levels in public water supply of São Luis.
Carmo
Cadidja Dayane Sousa do
CD
Departamento de Odontologia II, Universidade Federal do Maranhão, São Luis, MA, Brazil. cadidjadayane@yahoo.com.br
Alves
Cláudia Maria Coelho
CM
Cavalcante
Paulo Roberto
PR
Ribeiro
Cecília Cláudia Costa
CC
D001938:Brazil; D005459:Fluorides / Q000032:analysis*; D017150:Public Sector; D014881:Water Supply / Q000032:analysis*
D005459:Fluorides