“Minority, low-income, tribal, or indigenous populations or geographic locations in the United States that potentially experience disproportionate environmental harms and risks. This disproportionality can be as a result of greater vulnerability to environmental hazards, lack of opportunity for public participation, or other factors” (U.S. Environmental Protection Agency). Largely synonymous terms include “marginalized,” “front-line,” “underserved” and “environmental justice” communities.