WHO Guidelines for the Safe Use of Wastewater, Excreta and Greywater - Volume 4: Excreta and Greywater Use in Agriculture

Volume 4 of the WHO Guidelines for the Safe Use of Wastewater, Excreta and Greywater provides information on the assessment and management of risks associated with microbial hazards. It explains requirements to promote the safe use of excreta and greywater in agriculture, including minimum procedures and specific health-based targets, and how those requirements are intended to be used. This volume also describes the approaches used in deriving the guidelines, including health-based targets, and includes a substantive revision of approaches to ensuring microbial safety.