This is the formula for the index:ĮJ Index = (Environmental Indicator Percentile for Block Group) X (Demographic Index for Block Group) This socioeconomic information includes percent low-income and percent people of color (as the demographic index). To calculate a single EJ index for one block group, EJScreen multiplies the environmental indicator by socioeconomic information. The EJ index highlights block groups with the highest intersection of low-income populations, people of color, and a given environmental indicator. There are thirteen EJ indexes in EJScreen reflecting the 13 environmental indicators, combined with socioeconomic information. To see which years of data are in the current version, see Overview of Environmental Indicators in EJScreen or check the metadata. ![]() ![]() ![]() The below provides basic descriptions for the data included in the mapping layers available through EJScreen.
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