Fig. 4: State-level application of the action priority matrix (APM).
From: Equitable cleanup of Superfund sites leaving no U.S. community behind

a Shows the placement of states using Superfund Exposure Score (SES) and disparity percentage (Dp) values, with bubble size representing the total disadvantaged population and color hue indicating the share of that population in Superfund host blocks. National median thresholds (SES = 0.74, Dp = 59.7%) are used to define the quadrant boundaries. b Zooms in on the high-priority region outlined in (a) to provide a detailed view of states approaching the upper limits of SES and Dp. State labels use official two-letter postal abbreviations.