Fluoride Content of Bottled Drinking Water in Bangkok

Materials and methods: The fluoride content in forty-four bottled drinking water, which were produced in Thailand and sold in Bangkok, was analyzed by using fluoride ion electrode (Orion EA940, USA). The samplings consisted of 26 PET bottles, 7 PE bottles and 11 bottles of drinking mineral water, and all of them were collected 2 times(September 2008 and January 2009) for analyzing. The data was analyzed by descriptive analysis.

Results:

1) Almost of PET bottled samples had fluoride content less than 0.3 ppm, Coolyfresh®, Nestle purelife® and Neptune® had between 0.3-0.6 ppm while as Singha® had more than 0.6 ppm.

2) All of PE bottled drinking samples had fluoride content less than 0.3 ppm.

3) Four bottled drinking mineral water had fluoride content more than 0.3 ppm. Only i.o.® had more than 0.6 ppm while as Minere®, Mont Fleur® and Carrefour® had more than 0.3 ppm but not exceed 0.6 ppm.

Conclusion: This study was accounted a reason that the children's drinking water should be concerned before fluoride prescription for them. In cases the child has bottled drinking water as daily routine; the fluoride content in drinking water should be analyzed regularly, especially if the bottled drinking water was produced in countryside or not produced by reverse osmosis process.