The Environmental Justice Analysis Multisite tool lets you easily and quickly see residential population and environmental information aggregated within and across hundreds or thousands of places, all at the same time.
EJAM lets you specify the places to analyze in several ways – uploading a table of point locations (latitude/longitude), picking facilities by industry category or ID, uploading shapefiles or lists of Census FIPS codes, or clicking on a map to specify one or more points – and it returns a summary report comparing residents and environmental conditions at those places to the rest of the country.
This is the final release that uses the ACS 2018-2022 data, and it is frozen from here on. Development continues with the ACS 2020-2024 data in v4.2024.0.
See NEWS.md for the full list of recent enhancements and fixes.
See ejanalysis.org/status for more information.
In 2025, content related to what had been the USEPA-hosted open source R package EJAM was archived.
Ongoing development since then is not associated with EPA, and that development including any open source contributions, has taken place in a separate repository, called Public-Environmental-Data-Partners/EJAM, a non-EPA, detached fork.
See ejanalysis.org/ejamdocs for current documentation.
Until mid-2025, datasets had been in a repository archived and/or unpublished in mid-2025 (USEPA/ejamdata) with no plans for it to be further updated by EPA.
A (non-EPA) version of the EJAM web app may be found from within the EJSCREEN app (at the bottom of the list under the “Tools” tab in EJSCREEN), or directly via this link: ejanalysis.org/ejamapp
For information about how to host the web app, see Deploying the Web App