This set of tables describes all of the data tables and fields used in EPA's Risk-Screening Environmental Indicators (RSEI) model and results data sets, and is also available in PDF format: RSEI Data Dictionary. Each table listed below comes with information about where it can be found (e.g., in EasyRSEI, or in the Geographic Microdata).

Note that many of these tables link to other tables using keys like FacilityNumber, ChemicalNumber, and ReleaseNumber. The key values change with each version of RSEI, so you must use the same version for all tables, including the Microdata. The only exceptions are the Census Crosswalks, Population data tables, and the Shapefiles, which do not change with each RSEI version (however, they do change occasionally, so you should use the most recent version of each).

This Data Dictionary applies to RSEI Version 2.3.6. There have been some small changes from the data dictionary for Version 2.3.5. Be sure to use the version of the Data Dictionary that is consistent with the version of the data you are using.

Additional information can be found in the RSEI methodology document and in the Geographic Microdata documentation.