WHO Guidelines for drinking-water quality

Drinking-water quality is an issue of concern for human health in developing and developed countries world-wide. The risks arise from infectious agents, toxic chemicals and radiological hazards. Experience highlights the value of preventive management approaches spanning from water resource to consumer.

WHO produces international norms on water quality and human health in the form of guidelines that are used as the basis for regulation and standard setting, in developing and developed countries world-wide.

You can link here to:

• Guidelines for Drinking-Water Quality, 3rd (current) edition, incorporating the first and second addenda

• Index of background documents on chemical hazards in drinking-water
• Policies and Procedures for updating Guidelines for Drinking-water Quality