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For any form of publication, please include the link to this page and give the cartographer/designer credit (in this case UNEP/GRID-Arendal, Hugo Ahlenius)
Adapted from a map by Ahlenius, H., http://maps.grida.no/go/graphic/ratio -of-wastewater-treatment Sources: UNEP-GPA, 2004.
Uploaded on Monday 27 Feb 2012
Ratio of wastewater treatment
UNEP/GRID-Arendal, Hugo Ahlenius
The ratio of treated to untreated wastewater reaching water bodies for 10 regions. An estimated 90 per cent of all wastewa- ter in developing countries is discharged untreated directly into rivers, lakes or the oceans (UN Water, 2008).