Definition:
Amélioration des conditions environnementales des ménages, avec une incidence sur la santé humaine, par le drainage et l’évacuation des eaux usées et des déchets.
Source:
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Food and Agriculture Organization of the United Nations, AQUASTAT Web Site
United Nations, Department for Economic and Social Information and Policy Analysis, 1997, Glossary of Environmental Statistics, Studies and Methods, Series F, no 67, New York