The Environmental Justice Screening Tool (EJScreen) is developed by the U.S. Environmental Protection Agency (EPA) to help identify communities that may face higher environmental burdens and health risks due to pollution and socioeconomic factors. It combines environmental indicators (like air quality, proximity to hazardous waste sites, and traffic exposure) with demographic data (such as income, race, and education levels) to calculate Environmental Justice Indexes. EJScreen supports environmental justice analysis, policy development, and public engagement by making data accessible at granular geographic levels like census block groups.