Transcription of pH in Drinking-water - World Health Organization
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pH in Drinking-water - World Health Organization
WHO/SDE/ onlypH in drinking -waterBackground document for development ofWHO Guidelines for Drinking-water Quality_____Originally published in Guidelines for Drinking-water quality, 2nd ed. Vol. 2. Health criteria andother supporting information. World Health Organization , Geneva, 1996. World Health Organization 2003 All rights reserved. Publications of the World Health Organization can be obtained from Marketing andDissemination, World Health Organization , 20 Avenue Appia, 1211 Geneva 27, Switzerland (tel: +4122 791 2476; fax: +41 22 791 4857; email: for permission to reproduce or translate WHO publications - whether for sale or fornoncommercial distribution - should be addressed to Publications, at the above address (fax: +41 22791 4806; email: designations employed and the presentation of the material in this publication do not imply theexpression of any opinion whatsoever on the part of the World Health Organization concerning thelegal status of any country, territory, city or))
drinking-water and in adverse effects on its taste, odour, and appearance. The optimum pH will vary in different supplies according to the composition of the water and the nature of the construction materials used in the distribution system, but is often in the range 6.5–9.5. Extreme pH values can result from accidental spills, treatment ...
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