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Terms & Synonyms

Official WHO Definition

In risk assessment, it is the process by which an agent crosses an outer exposure surface of a target without passing an absorption barrier, i.e., through ingestion or inhalation (WHO 2004).The works or structures at the head of a conduit into which water is diverted; (2) the process of operation by which water is absorbed into the ground and added to the saturation zone; (3) the flow or rate of flow into a canal, conduit, pump, stack, tank, or treatment process before treatment (Symons et al. 2000).

Other Definitions


Interpretations and Explanations


Symons, J. M., Bradley, L. C. Jr. and Cleveland, T. C.  2000.  The Drinking Water Dictionary. American Water Works AssociationWHO (2004) IPCS Risk asssessment terminology: Internationally harmonized terms in relation to chemicals

WHO Lexicon page (translations and examples)

See also

External Resources


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