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cerrar este libroA Guide to the Development of on-site Sanitation (WHO; 1992; 246 pages)
Ver el documentoPreface
cerrar esta carpetaPart I. Foundations of sanitary practice
abrir esta carpeta y ver su contenidoChapter 1. The need for on-site sanitation
abrir esta carpeta y ver su contenidoChapter 2. Sanitation and disease transmission
abrir esta carpeta y ver su contenidoChapter 3. Social and cultural considerations
cerrar esta carpetaChapter 4. Technical options
Ver el documentoOpen defecation
Ver el documentoShallow pit
Ver el documentoSimple pit latrine
Ver el documentoBorehole latrine
Ver el documentoVentilated pit latrine
Ver el documentoPour-flush latrine
Ver el documentoSingle or double pit
Ver el documentoComposting latrine
Ver el documentoSeptic tank
Ver el documentoAqua-privy
Ver el documentoRemoval systems for excreta
abrir esta carpeta y ver su contenidoPart II. Detailed design, construction, operation and maintenance
abrir esta carpeta y ver su contenidoPart III. Planning and development of on-site sanitation projects
Ver el documentoReferences
Ver el documentoSelected further reading
Ver el documentoGlossary of terms used in this book
Ver el documentoAnnex 1. Reuse of excreta
Ver el documentoAnnex 2. Sullage
Ver el documentoAnnex 3. Reviewers
Ver el documentoSelected WHO publications of related interest
Ver el documentoBack Cover

Open defecation

Where there are no latrines people resort to defecation in the open. This may be indiscriminate or in special places for defecation generally accepted by the community, such as defecation fields, rubbish and manure heaps, or under trees. Open defecation encourages flies, which spread faeces-related diseases. In moist ground the larvae of intestinal worms develop, and faeces and larvae may be carried by people and animals. Surface water run-off from places where people have defecated results in water pollution. In view of the health hazards created and the degradation of the environment, open defecation should not be tolerated in villages and other built-up areas. There are better options available that confine excreta in such a way that the cycle of reinfection from excreta-related diseases is broken.

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