Multiple barriers


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Terms & Synonyms

Official WHO Definition

The use of more than one preventive measure as a barrier against hazards (WHO 2006).

Other Definitions


Interpretations and Explanations

The multiple barrier approach in drinking water is the concept of using more than one type of protection or treatment in series in a water treatment process to control contamination (Symons et al. 2000).


Symons, J. M., Bradley, L. C. Jr. and Cleveland, T. C.  2000.  The Drinking Water Dictionary. American Water Works AssociationWHO (2006) Guidelines for the safe use of wastewater, excreta and greywater


WHO Lexicon page (translations and examples)

See also

External Resources


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