Lowly Latrines, a Far Better Solution to Global Sanitation

by Hannah Punitha on  June 19, 2008 at 7:21 PM Environmental Health   - G J E 4
 Lowly Latrines, a Far Better Solution to Global Sanitation
While the invention of water-guzzling appliances such as toilets might be considered as the pinnacle of sanitary science, a lowly latrine could be a far better solution in keeping sewage safely separate from drinking water for many parts of the developing world, say researchers.

Associate Professor David Watkins, Professor James Mihelcic and PhD student Lauren Fry of the University's Sustainable Futures Institute analyzed worldwide barriers to sanitation.

Diseases such as dysentery attack millions of people every year, often fatally, largely as a result of poor sanitation. In particular, the researchers found that a scarcity of clean drinking water is not as big an issue as one might expect.

In fact, installing water-guzzling appliances such as toilets can actually promote unsanitary conditions when the effluent is discharged untreated into once-clean rivers and streams. A properly built latrine, on the other hand, keeps sewage safely separate from drinking water.

"Our challenge has been to look at what interventions make the most difference," Watkins said.

Their findings show that small changes can be more important in preserving health than big engineering projects, a fact that Watkins, an engineer, relates with some consternation.

"As engineers, we like to build stuff. But handwashing is really important, too. Even a simple thing like not dipping your hand into the water pot can make a big difference," Watkins said.

However, getting people to change their habits can be harder than building infrastructure, he added.

"They may not understand the science, and because it is about parasites and bacteria that they can't see, they may not recognize the risks," Watkins said.

The study, "Water- and Nonwater-related Challenges of Achieving Global Sanitation Coverage," is published in Environmental Science and Technology.

Source: ANI

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