Skip navigation and go directly to content.
Agency for Toxic Substances and Disease Registry Search  |  Index  |  Home  |  Glossary  |  Contact Us  

Step 1.1 Identifying Exposure Pathway Categories

bullet Introduction

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.

< Back | Next >

spacer Last updated: February 20, 2008
bullet ATSDR EPH Training Coordinator

  ATSDR Home  |  Search  |  Index  |  Contact Us
About ATSDR  |  News Archive  |  ToxFAQs  |  Public Health Assessments
Privacy Policy  |  External Links Disclaimer |  Accessibility
U.S. Department of Health and Human Services