Taste Threshold Concentrations of Metals in Drinking Water

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Abstract
The U.S. Public Health Service (USPHS) Drinking Water Standards of 1946 are currently being re‐examined in preparation for revision incorporating new knowledge acquired in the subsequent years. In establishing limits on concentrations of certain metals in drinking water, one of the several factors that must be considered is taste threshold. The technical literature is, unfortunately, lacking in such data. The study reported here was undertaken to provide taste threshold data on copper, iron, manganese, and zinc for consideration in the revised standard. The results of the study are summarized in 5 per cent and 50 per cent points on the cumulative frequency distributions of taste threshold concentrations are shown for each metal.

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