Systematic Evidence Map (SEM)

ATSDR Systematic Evidence Maps (SEMs) are valuable tools that systematically capture and screen new literature published since the release of the Tox Profile, providing an interactive inventory of relevant research. Each SEM contains a literature flow diagram and interactive data visualizations of literature reviews.

In some instances, an SEM will be completed on a substance without an existing Tox Profile to help determine how much information is available on a substance of interest.

The full list of Tox Profiles can be found in the Toxicological Profiles section, under the A-Z Index.


Page last reviewed: July 22, 2025