PM2.5 polluters disproportionately and systemically affect people of color in the United States

Christopher W. Tessum, David A. Paolella, Sarah E. Chambliss, Joshua S. Apte, Jason D. Hill, Julian D. Marshall

Research output: Contribution to journalArticlepeer-review

Abstract

Racial-ethnic minorities in the United States are exposed to disproportionately high levels of ambient fine particulate air pollution (PM2.5), the largest environmental cause of human mortality. However, it is unknown which emission sources drive this disparity and whether differences exist by emission sector, geography, or demographics. Quantifying the PM2.5 exposure caused by each emitter type, we show that nearly all major emission categoriestextemdashconsistently across states, urban and rural areas, income levels, and exposure levelstextemdashcontribute to the systemic PM2.5 exposure disparity experienced by people of color. We identify the most inequitable emission source types by state and city, thereby highlighting potential opportunities for addressing this persistent environmental inequity.
Original languageEnglish (US)
JournalScience Advances
Volume7
Issue number18
DOIs
StatePublished - Apr 28 2021

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