Disparities in drinking water service levels
Global coverage figures from 2002 indicate that, of every 10 people, roughly 5 have a connection to a piped water supply at home (in their dwelling, plot or yard); 3 make use of some other sort of improved water supply, such as a protected well or public standpipe; and 2 are unserved, with no choice but to rely on potentially unsafe water from rivers, ponds, unprotected wells or water vendors (see Figure 14).
The way that people secure their drinking water has a direct impact on their health and on the economic status of households. In households using only a remote and unprotected source, health can be jeopardized by water contamination. Moreover, the quantity of water collected is likely to be too small for effective hygiene, even if bathing and laundry are carried out at the source. Using improved water sources, such as a protected spring or well within a reasonable walking distance, provides substantial health benefits. But hygiene may still be compromised and water may be contaminated in transport and storage.
Once water is available at home – through a yard or house tap, for example – then hygienic behaviour and the maintenance of water quality becomes easier. Major improvements in household health usually accompany the use of piped water at home. Similarly, the time saved in not having to collect water may also contribute significantly to improvements in the household economy.