Enviromental Justice (EJSCREEN) Block Group Data (USEPA)

Metadata Updated: January 12, 2018

EJSCREEN is an environmental justice (EJ) screening and mapping tool that provides EPA with a nationally consistent dataset and methodology for calculating "EJ indexes," which can be used for highlighting places that may be candidates for further review, analysis, or outreach as the agency develops programs, policies and other activities. The tool provides both summary and detailed information at the Census block group level or a user-defined area for both demographic and environmental indicators. The summary information is in the form of EJ Indexes which combine demographic information with a single environmental indicator (such as proximity to traffic) that can help identify communities living in areas with greater potential for environmental and health impacts. The tool also provides additional detailed demographic and environmental information to supplement screening analyses. EJSCREEN displays this information in color-coded maps, bar charts, and standard reports. Users should keep in mind that screening tools are subject to substantial uncertainty in their demographic and environmental data, particularly when looking at small geographic areas, such as Census block groups. Data on the full range of environmental impacts and demographic factors in any given location are almost certainly not available directly through this tool, and its initial results should be supplemented with additional information and local knowledge before making any judgments about potential areas of EJ concern. The National-scale Air Toxics Assessment (NATA) environmental indicators and EJ indexes, which include cancer risk, respiratory hazard, neurodevelopment hazard, and diesel particulate matter will be added into EJSCREEN during the first full public update after the soon-to-be-released 2011 dataset is made available. All NATA associated indicator and index elements are currently set to "Null".

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Metadata Date September 13, 2017
Metadata Created Date October 6, 2017
Metadata Updated Date January 12, 2018
Reference Date(s) April 9, 2015 (publication)
Frequency Of Update

Metadata Source

Harvested from Environmental Dataset Gateway ISO Geospatial Metadata

Additional Metadata

Resource Type Dataset
Metadata Date September 13, 2017
Metadata Created Date October 6, 2017
Metadata Updated Date January 12, 2018
Reference Date(s) April 9, 2015 (publication)
Responsible Party U.S. Environmental Protection Agency, Office of the Administrator, Office of Policy (Publisher)
Contact Email
Access Constraints https://edg.epa.gov/EPA_Data_License.html
Bbox East Long -119.652128
Bbox North Lat 47.088954
Bbox South Lat 44.135433
Bbox West Long -124.115878
Coupled Resource
Frequency Of Update
Guid 41CDBD5E-35AE-436E-8EEC-7C13EA122346
Harvest Object Id 135309f5-0e38-46d1-8b5e-ab7f4999fdb7
Harvest Source Id b8a6460e-2ff4-4060-9f31-a0229d105a3c
Harvest Source Title Environmental Dataset Gateway ISO Geospatial Metadata
Licence Please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
Metadata Language eng
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System 8974
Spatial Harvester True
Temporal Extent Begin 2015-04-09
Temporal Extent End 2015-04-09

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