0337/2006 - External control of fluoride levels in the public water supply in Lages – Santa Catarina – Brazil
Heterocontrole da fluoretação da água de abastecimento público de Lages – Santa Catarina – Brasil
Publicado
Author:
• Ramona Fernanda Ceriotti Toassi - Ramona Fernanda Ceriotti Toassi - Porto Alegre, RS - Universidade do Planalto Catarinense - UNIPLAC - <ramona.fernanda@ufrgs.br> +Thematic Area:
Não CategorizadoAbstract:
The aim of the present study was monthly evaluation of fluoride levels in the public water supply in Lages, Santa Catarina, Brazil. Lages was divided into 10 geographic regions. Water samples were collected from october 2004 to september 2005. Two samples were drawn from each region. Samples were sent to the Fluoride Health Surveillance Laboratory at Universidade do Vale do Itajaí. Fluoride analysis used an electrometric method (Orion 920A/Eletrodo Orion 9609). After 12 months, 120 samples were collected, demonstrating a discontinuity in the fluoride levels, predominant points with excessive fluoride levels (35,8%). Several points with an ideal concentration of fluoride (54,2%) also appeared. Based on these results it was concluded that external control in Lages is essential for monitoring levels in the public water supply.Key words: Fluoridation, Water Treatment, Water Analysis, Water Supply
