Fig. 4: Uncertainty in the estimated impacts on PM2.5 exposure and disparities.
From: Air quality related equity implications of U.S. decarbonization policy
Uncertainty range for the change in PM2.5 exposures (red, panel a) and disparities (blue, panel b) by race/ethnicity between Cap 50% (2030) and Baseline (2030). Results are based on two additional sensitivity simulations in which total reductions remain constant for each economic region and sector, but the distribution of these reductions among different point sources are allowed to vary. The error bars show the full range of changes in exposure and disparities across the three scenarios (main + two sensitivity scenarios). Disparity is calculated as the percentage difference between PM2.5 exposure for the given group and the total population. Racial/ethnic categories are derived from the American Community Survey.
