International Federation of Red Cross and Red Crescent Societies (IFRC) International Federation of Red Cross and Red Crescent Societies (IFRC)
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Disaster management
Responding to disasters 
Services for the disaster-affected: water, sanitation & hygiene promotion


Without safe and adequate water, sanitation and hygienic environmental conditions and practices, the health status of disaster affected populations are often threatened, leading to increased morbidity and mortality. Ensuring access to such facilities as soon as possible post-disaster has proven to save lives, reduce the threat of disease and assist in restoring dignity to the target population.

Therefore, the first priority is usually to ensure a minimum of safe water for drinking and cooking is available, linked to access to a safe and private place for excreta disposal. A secondary priority is to provide bathing and laundry facilities and solid waste disposal to reduce disease vectors. All of these interventions must have a hygiene promotion element, to ensure the facilities are used to their best advantage, and that poor hygiene practices are discouraged.

Less water for people directly affects their health, if water supply is reduced, clothes cannot be washed, personal hygiene suffers, cooking utensils cannot be properly cleaned nor food properly prepared, and there is not enough water to replace that which the body loses naturally. Less water results in more skin disease, eye infections, diarrhoeal diseases and dehydration.

Therefore the human body’s basic water requirements (dependant upon climate, work-load and other environmental and cultural factors) may vary between 3-15 litres a day as a minimum standard (SPHERE).

Overall community needs, however, are not limited only to those of its individual members. The overall community health and sanitation needs, as well as water needs for livestock and agriculture - may need to be taken into account. A recognised priority is water and sanitation needs for health facilities and supplementary and therapeutic feeding centres.

Experience has shown that an integrated approach to Water, Sanitation and Hygiene in post disaster situations is best, with close linkages to health interventions to contain and reduce overall morbidity and mortality. In recent years an increased emphasis on community participation and awareness raising, especially in hygiene promotion, is recognised as a critical factor in disease control and reduction.

Without safe and adequate water, sanitation and hygienic environmental conditions and practices, the health status of disaster affected populations are often threatened, leading to increased morbidity and mortality. Photo:  Vina Augustina/International Federation (p15477)

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