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THE 1949 report of this committee was devoted largely to a review of methemoglobinemia based upon a nation-wide questionnaire. This report was published in the Year Book of the Association, May, 1950. This year the committee circularized state and territorial departments of health regarding this subject and also regarding water supply aspects of civil defense, the fluoridation of water supplies, and the practice of free residual chlorination. METHEMOGLOBINEMIA The current survey of the committee relative to this subject disclosed no additional information which would permit conclusions which were more definite than those expressed last year. Only two recent cases were reported for 38 states, one in Indiana and one in Texas, which were associated with waters containing 80 to 100 p.p.m. and 13 p.p.m. nitrate nitrogen, respectively. It is very evident, therefore, that research is necessary to determine with certainty the safe concentration of nitrates in potable waters fed infants, and also what physiological factors underlie the observed fact that many waters having high nitrate content have been fed infants without methemeglobinemia developing. FLUORIDATION OF PUBLIC WATER SUPPLIES upon in the June, 1950, issue of the American Journal of Public Health. Indirect information pertaining to similar research projects
American Journal of Public Health – American Public Health Association
Published: May 1, 1951
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