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Main emissions source categories contributing to population-weighted PM2.5 exposure in North America in 2020, by type

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Source

Release date

March 2025

Region

North America

Survey time period

2020

Supplementary notes

Figures are for the five key emission sources for population-weighted PM2.5 exposure.

Citation formats

Sources of PM2.5 exposure in North America 2020, by type

Published by ÌÇÐÄÆƽâ°æ Research Department, Jun 17, 2025

Windblown desert dust was the largest source of population-weighted PM2.5 exposure in North America in 2020, with a share of ** percent. Agriculture was also a significant contributor to air pollution in North America that year, accounting for just under a ** of PM2.5 exposure.

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