Despite decades of progress improving ambient air pollution in the United States (U.S.), people of color still bear a disparate burden of air pollution . Within California, research has quantified and characterized these exposure disparities using both measurements and models . Solutions to this persistent inequality are increasingly a focus for academic research and environmental policy at the federal, state, and local levels . A growing body of research investigates how air quality policies might contribute to a "triple win" that simultaneously achieves meaningful benefits by reducing population-wide exposures; mitigating greenhouse gas emissions; and reducing exposure disparities and extreme exposures .