Fig. 2: Impacts of climate policy scenarios on PM2.5 concentration over continental US.
From: Air quality related equity implications of U.S. decarbonization policy
a–c Annual average PM2.5 concentrations (μg/m3) under Cap 50% (2030) and changes under Cap 50% (2030) relative to Baseline (2030) and Hist. (2017). d–f Change in concentrations under Cap 50% (2030) relative to Baseline (2030) from the three leading sectors. National population-weighted averages of (total or changes in) PM2.5 concentration are listed under each respective title. Changes from other sectors can be found in Figure S1. The base map of U.S. states is plotted using the R package tigris (https://CRAN.R-project.org/package=tigris), with original shape files from the U.S. Census Bureau (https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.html, year 2019, resolution 20m).
