Long-range PM2.5 pollution and health impacts from the 2023 Canadian wildfires

Nature, Published online: 10 September 2025; doi:10.1038/s41586-025-09482-1

A modelling study based on satellite observations, machine learning and a chemical transport model quantifies the global and regional exposure to particulate-matter pollution and the human health impacts related to the 2023 Canadian wildfires.