The fourth edition incorporating the first, second, and third addenda of the World Health Organization’s (WHO) Guidelines for drinking-water quality (GDWQ) builds on over 65 years of WHO guidance on drinking-water quality. This guidance has formed an authoritative basis for the setting of national regulations and standards for water safety in support of public health.
The Guidelines provide a comprehensive framework for protecting public health through the management of drinking-water quality risks, from catchment to consumer. They support the development of health-based targets, risk-based management approaches and independent surveillance.
This latest version incorporates updates that reflect new evidence and substantive implementation experience to better support the effective application of the Guidelines in a range of settings.