contaminants from drinking water exist, and
most have been extensively used and/or
tested in developing countries.
The following table provides a comparison overview on a broad range of appropriate point-of-use technologies.
All of these systems have been shown to dramatically improve the microbiological quality of water. Keeping in mind the fact that water-borne diseases can be spread through multiple pathways, focusing on the provision of safe drinking water alone while ignoring hygiene and sanitation issues is a strategy destined to fail.