§ Mr. Stoddartasked the Secretary of State for the Environment (1) what proportion of public water supplies in the United Kingdom, other than those which have fluoride added artificially, has a natural fluoride content exceeding one-tenth of one part per million;
(2) what proportion of public water supplies in the United Kingdom, other than those which have fluoride added artificially, contains detectable amounts of fluoride.
§ Mr. MonroI cannot supply all the information in the form requested. A letter will be sent to the hon. Member.