TAILIEUCHUNG - Drinking Water Equity, safety and sustainability

It is also interesting to note that these studies took a broad, regional approach to water quality problems and acknowledged the role of not just industrial sources, but nonpoint sources as well. In this respect, the work was particularly far-sighted. Unfortunately, the institutions necessary to implement regional approaches did not exist at that time. 13 Current water quality regulation, as exemplified by the TMDL program, is returning to watershed-level, multi-source analysis of water quality impairments. In the intervening years, however, water quality regulation took a more intermediate set of steps, focusing on direct quantity restrictions imposed on. | UNICEF and World Health Organization 2011 All rights reserved. UNICEF and the World Health Organization welcome requests for permission to reproduce or translate their publications whether for sale or for non-commercial distribution. Applications and enquiries should be addressed to UNICEF Division of Communication 3 United Nations Plaza New York 10017 United States of America fax 1 212 303 7985 e-mail . or to WHO Office of Publications through the WHO web site http about licensing copyright_form en The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of UNICEF or the World Health Organization concerning the legal status of any country territory city or area or of its authorities or concerning the delimitation of its frontiers or boundaries. Dotted lines on maps represent approximate border lines for which there may not yet be full agreement. The figures included in this report have been estimated by the WHO UNICEF Joint Monitoring Programme for Water Supply and Sanitation to ensure compatibility thus they are not necessarily the official statistics of the concerned country area or territory which may use alternative rigorous methods. The mention of specific companies or of certain manufacturers products does not imply that they are endorsed or recommended by UNICEF or the World Health Organization in preference to others of a similar nature that are not mentioned. Errors and omissions excepted the names of proprietary products are distinguished by initial capital letters. UNICEF and the World Health Organization do not warrant that the information contained in this publication is complete and correct and shall not be liable for any damages incurred as a result of its use. WHO Library Cataloguing-in-Publication Data Drinking Water Equity Safety and Sustainability Thematic report on drinking water 2011 1. .

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