Impact of truck electrification on air pollution disparities in the United States

Wilson H. McNeil, Jason Porzio, Fan Tong, Robert A. Harley, Maximilian Auffhammer and Corinne D. Scown ()
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Wilson H. McNeil: Lawrence Berkeley National Laboratory
Jason Porzio: Lawrence Berkeley National Laboratory
Fan Tong: Beihang University
Robert A. Harley: University of California
Maximilian Auffhammer: Lawrence Berkeley National Laboratory
Corinne D. Scown: Lawrence Berkeley National Laboratory

Nature Sustainability, 2025, vol. 8, issue 3, 276-286

Abstract: Abstract Electrifying heavy-duty trucks reduces on-road diesel emissions but shifts the burden of supplying energy to power-generation facilities. The combined effect of Inflation Reduction Act investments in grid decarbonization and truck electrification will alter the magnitude and distribution of air pollution burdens across the United States. These investments are intended to facilitate a just energy transition, with 40% of the benefits flowing to disadvantaged communities per the Justice40 Initiative. Here we evaluate the combined effects of Inflation Reduction Act grid decarbonization and truck electrification investments on a national scale to determine whether the air pollution benefits would meet this 40% goal for both disadvantaged communities and the most exposed racial–ethnic groups. We find that truck electrification and decarbonization reduce air-pollution-related premature mortality in disadvantaged communities. However, the relative disparity between disadvantaged and non-disadvantaged communities increases, suggesting that a disproportionate share of benefits accrue to non-disadvantaged communities. Whereas absolute disparity in grid emissions decreases over time for all racial–ethnic groups, relative disparity remains largely unchanged, with Black populations being the most exposed. Electrifying drayage corridors would result in comparatively large health benefits for disadvantaged communities, suggesting that increasing targeted electrification investments in short-haul routes near urban areas (for example, ports) could be promising.

Date: 2025
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DOI: 10.1038/s41893-025-01515-x

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