"Health hazards." . . "Pollution." . . "Ethiopia." . . "environnement santé publique - gestion ville Ethiopie [étude de cas]" . . "Waste management." . . "Health services." . . "Äthiopien." . . "Environmental Pollution Ethiopia." . . "Waste Management Ethiopia." . . "Urban Health Services Ethiopia." . . "Water supply." . . "Environmental health." . . "Urban Health Ethiopia." . . "Gesundheitsgefährdung." . . "Water Supply Ethiopia." . . "Stadtbevölkerung." . . . "Living with urban environmental health risks : the case of Ethiopia" . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Sanitation." . . "Urbanization." . . . . "Urban areas." . .