State of the Tropics - Infrastructure - Improved Water

Data calculated for State of the Tropics report from original source: World Health Organisation/UNICEF Joint Monitoring Programme (JMP) for Water Supply & Sanitation. Access to an improved water source refers to the percentage of the population with reasonable access to an adequate amount of water from an improved source, such as a household connection, public standpipe, borehole, protected well or spring, and rainwater collection. Unimproved sources include vendors, tanker trucks, and unprotected wells and springs. Reasonable access is defined as the availability of at least 20 litres a person a day from a source within one kilometre of the dwelling.