Supplemental Index

{
  "id": "MLC-T-ENV-027304",
  "term": "Supplemental Index",
  "field": "Environment",
  "definition": "There are thirteen supplemental indexes in EJScreen reflecting the 13 environmental indicators, combined with socioeconomic information. The supplemental index highlights block groups with the highest intersection of five socioeconomic factors and a given environmental indicator. To calculate a single supplemental index for one block group, EJScreen multiplies the environmental indicator by socioeconomic information. This socioeconomic information includes percent low-income, percent linguistically isolated, percent less than high school education, percent persons with disabilities, and low life expectancy (as the supplemental demographic index). This is the formula for the index: Supplemental Index = (Environmental Indicator Percentile for Block Group) X (Supplemental Demographic Index for Block Group) View descriptions of the 13 Supplemental Indexes here (https://www.epa.gov/ejscreen/supplemental-index-descriptions).",
  "subject": "General environmental",
  "references": [
    "Glossary of EJSCREEN Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/supplemental-index/"
}