Step 1.1 Identifying Exposure Pathway Categories
ATSDR categorizes exposure pathways as completed, potential, or eliminated.
Completed pathway: All five elements of the pathway are present.
Potential pathway: One element (or more) of the pathway cannot be identified, but it is possible that the element might be present or might have been present.
Eliminated pathway: At least one element of the pathway is not present and either will never be present or is extremely unlikely to ever be present.
- Page last reviewed: May 31, 2016
- Page last updated: May 31, 2016
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