Water sanitation hygiene

Guidelines for the safe use of wastewater, excreta and greywater

Wastewater gutter
SuSanA Secretariat

In 2006, WHO published a third edition of its Guidelines for the safe use of wastewater, excreta and greywater in agriculture and aquaculture. In four volumes, these Guidelines propose a flexible approach of risk assessment and risk management linked to health-based targets that can be established at a level that is realistic under local conditions. The approach is to be backed-up by strict monitoring measures.

The Guidelines are presented in four separate volumes:

WHO, together with FAO, IDRC, and IWMI, produced two information kits with targeted guidance notes, discussion papers, fact sheets, and policy briefs, to further clarify methods and procedures detailed in the guidelines. These focus on specific components of the integrated risk assessment and incremental risk management approach proposed by the Guidelines.

Further information


See also