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    Guidelines for drinking-water quality. 2nd ed. Volume 2. Health criteria and other supporting information.

    World Health Organization [WHO]. International Programme on Chemical Safety

    Geneva, Switzerland, WHO, 1996. xvi, 973 p.

    The first edition (1984-85) of guidelines for drinking water quality was intended for use as a basis for the development of national standards to ensure the elimination--or significant reduction--of constituents of water known to be hazardous to health. This revised edition includes many drinking water contaminants not included in the earlier book and revises some of the recommended guideline values in light of new scientific information. This volume explains how guideline values for drinking water contaminants are to be used; defines the criteria used to select the chemical, physical, microbiological, and radiological contaminants included; and evaluates the effects of these substances on human health. The guidelines presented were developed by over 200 experts from 40 countries. It is emphasized that guideline values should be considered in the context of environmental, social, economic, and cultural conditions rather than as absolutes. Moreover, guideline values are recommended only when control techniques are available to remove or reduce contaminant concentrations to desired levels. Source protection is almost invariably the best method of ensuring safe drinking water.
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