Cost of fluoridating city water
Fluoride is added to public water supplies at an average concentration of about 1 part per million (1 ppm) or 1 milligram per liter, or slightly below.
Naturally occurring fluoride concentrations in surface waters depend on location but are generally low and usually do not exceed 0.3 ppm. Department of Health and Human Services issued a recommendation for the optimal fluoride level that should be in drinking water to prevent tooth decay.
We look forward to seeing you on [website] frequently.
More than 70 years of scientific research has consistently shown that an optimal level of fluoride in community water is safe and effective in preventing tooth decay by at least 25% in both children and adults.
However, it has also declined in other countries that do not fluoridate, according to the World Health Organization (WHO).
Since its introduction beginning in the 1940s, fluoridation has been the source of considerable controversy.
It is recommended by the American Dental Association, American Academy of Pediatrics, US Public Health Service, and World Health Organization.
Because of its contribution to the large decline in cavities in the United States since the 1960s, CDC named community water fluoridation one of 10 great public health achievements of the 20th century.