Water Sanitation Health

Environmental sanitation and hygiene development

About 2.4 billion people globally live under highly unsanitary conditions and have such poor hygiene behaviours that their exposure to risks of incidence and spread of infectious diseases, are enormous. Water stored at home is frequently contaminated by inadequate water management in the home. These issues are receiving increasing attention, but considering the huge backlog within the sector there is still a need for greater mobilization of resources and involvement of decision-makers at all levels.

WHO has been at the forefront of environmental sanitation and hygiene action over the past years and developed some key materials intended for policy-makers and technical people dealing with these issues. These materials include guidelines, best practice documents and promotion materials.

All WASH publications

All WASH publications by date