Figure 3.

Access to Improved Sanitation Facilities in Countries, Stratified by (a) Income Group and (b) Region (1990‐2015)

Access to improved sanitation facilities refers to the percentage of the population using improved sanitation facilities. Improved sanitation facilities are likely to ensure hygienic separation of human excreta from human contact. They include flush/pour flush (to piped sewer system, septic tank, pit latrine), ventilated improved pit (VIP) latrine, pit latrine with slab, and composting toilet.

Data derived from the World Bank 2015.4