HC Deb 16 December 1965 vol 722 c334W
Mrs. Joyce Butler

asked the Minister of Health what analysis has been made of water in areas containing a high level of calcium fluoride to determine what other chemicals or trace elements are also present which may modify the toxic effects of the fluoride.

Mr. K. Robinson

Routine chemical analyses are made by water undertakers; but I am advised that a special investigation of the type suggested would be unrewarding, since no toxic effects—apart from increased dental mottling where the amounts of fluoride are excessive—have been observed as a result of fluoride in water in this country.

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