Environmental Justice Analysis Multisite tool

What is EJAM?

EJAM is what provides community reports for EJSCREEN , and is also known as "EJSCREEN's multisite tool."

EJAM is a tool that makes it easy to see residential population and environmental information summarized in and across any list of places in the nation. Using this tool is like getting EJSCREEN reports for hundreds or thousands of places, all at the same time.

This provides interactive results and a formatted, ready-to-share report with tables, graphics, and a map. The report can provide information about communities near any of the industrial facilities on a list, for example.

This version of the Environmental Justice Analysis Multisite tool (EJAM) is not associated with the United States Environmental Protection Agency (US EPA), but has its roots in open source code that was originally developed at EPA.

For more information about the evolving status of EJSCREEN & EJAM since early 2025 , see ejanalysis.org

Download Multisite Summary Report

About this Table

This table shows results for each Location in the analysis. It includes location and residential population, environmental, and summary indicator information. The downloaded version includes more columns than are displayed here.

Download Results Table

About this Chart

These charts show how each residential population group and environmental stressor, in the analyzed locations, compares to its US average. A Summary/ EJ Index combines an environmental indicator with the Demog. Index (The Summary Index is what EJSCREEN called an EJ Index).

Definitions

Average site = the average site's average resident (the average resident's score is calculated at each site as the site-specific population-weighted mean, and then the arithmetic mean of those site-specific scores is calculated)
Average person at these sites = the average person among all the residents who are at any one or more of the sites, counting each person only once even if they live near more than one site.

About this Chart

This chart shows the spread of indicator values across all locations in your analysis.

Distribution across sites or people (pop.wtd.)

Sites

People

Data type

Percentile of US

Raw data

Bins

Edit report settings below to tailor the full report to your specific analysis.

Download report

Describe sites analyzed:

Zone Type (How are zones defined?)

Near to

Describe the surrounding area

Add area details

Risk level

General study location

Other - please specify

Facilities Studied

Other - please specify

Source of Points

Author Name(s):

Author Email(s):

Add co-authors?

Co-Author Name(s)

Co-Author Email(s)

Funding Source

Version of ACS data (years)

Version of EJSCREEN

Elevation of Residential Population Indicators

Elevation of Environmental Indicators

Residential population indicators high at what share of sites?

Environmental indicators high at what share of sites?

Conclusion 1

Conclusion 2

Conclusion 3

What is EJAM?

For more information about the evolving status of EJSCREEN & EJAM since early 2025 , see ejanalysis.org

Select industry of interest

Select industry of interest

Pick places to analyze by typing in the name of a place or selecting from the dropdown.

Select places by name or from a menu

About this Table

About this Chart

Definitions

About this Chart

Distribution across sites or people (pop.wtd.)

Data type

Bins

Advanced settings and experimental features not fully tested

Bookmarking to save settings and inputs

Site Selection Options

Caps on site number and file size

Uploaded files and dropdown menu site selection

Upload files options

Dropdown menu site selection options

NAICS industry code to start with

Radius options

Calculating distances, Aggregating, and extra metrics

Finding distances and blocks/residents at each site

Which indicators to include in aggregation

Counting indicators reaching certain thresholds

Ratios, Averages, and extra indicators

Viewing Interactive Results

Short (summary) report

By-site interactive table of results

Plots

Downloading Results

Spreadsheet of results

Other Settings

Advanced tab

Testing/ debugging modes/etc.