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Guidelines for drinking-water quality. 4th edition

Guidelines for drinking-water quality. 4th edition
  • World Health Organization (WHO). July 2011
  • This 4th edition of the World Health Organization's Guidelines for Drinking-water Quality builds on over 50 years of guidance by WHO on drinking-water quality, which has formed an authoritative basis for the setting of national regulations and standards for water safety in support of public health. The Guidelines are addressed primarily to water and health regulators, policymakers and their advisors, to assist in the development of national standards. This edition of the Guidelines further develops concepts, approaches and information introduced in previous editions. It considers: drinking-water safety, including minimum procedures and specific guideline values and how these are intended to be used; approaches used in deriving the Guidelines, including guideline values; microbial hazards, which continue to be the primary concern in both developing and developed countries; climate change, which results in changing water temperature and rainfall patterns, severe and prolonged drought or increased flooding, and its implications for water quality and water scarcity, recognizing the importance of managing these impacts as part of water management strategies; chemical contaminants in drinking-water, including information on chemicals not considered previously, such as pesticides used for vector control in drinking water; revisions of existing chemical fact sheets, taking account of new scientific information; those key chemicals responsible for large-scale health effects through drinking water exposure, including arsenic, fluoride, lead, nitrate, selenium and uranium, providing guidance on identifying local priorities and on management; the important roles of many different stakeholders in ensuring drinking-water safety; guidance in situations other than traditional community supplies or managed utilities, such as rainwater harvesting and other non-piped supplies or dual piped systems.
  • Geographical coverage: Global
  • Main themes: Disease, Drinking water, Health, Microbiology, Monitoring, Pollution, Risk management, Water management, Water quality, Water safety plans (WSPs), Water security
  • Main target audience: Health professionals, National administrations, Policy makers, Practitioners, Stakeholders
  • Main purpose: Guidance
  • Type of resource: Fact sheet, Guidelines, Standards
  • Download file (13.5 MB)
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Published in 2015