The overall purposes of sanitation are to provide a healthy living environment for everyone, to protect the natural resources (such as surface water, groundwater, soil), and to provide safety, security and dignity for people when they defecate or urinate.
卫生设施的总体目标是，为每一个人提供健康的生活环境，保护自然资源（例如地表水、地下水、土壤），并在人们大便或小便时提供安全和尊严。