Cameroun (2) Restrooms (2) Toilets (2) Septic tanks (2) Pollution (2) Fosas sépticas (2) Contaminación (2) Assainissement (2) Toilettes (2) Réseau (2) Pollution (2) Toilettes (pièces) (2) Fosses septiques (2) Pollution (2) latrines (2) Yaoundé (2) Cameroun (2) Development (1) Deterioration (1) Defects (1) Diseases (1) Observations (1) Methodology (1) Surveys (1) Observations (1) Statistics (1) Protected areas (1) Plumbing fixtures (1) Male actors (1) Zone of aeration (1)