Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 17
Articles | Volume 25, issue 17
https://doi.org/10.5194/acp-25-10141-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-10141-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 17
Research article
 | 
09 Sep 2025
Research article |  | 09 Sep 2025

The contribution of fires to PM2.5 and population exposure in the Asia Pacific region

Hua Lu, Min Xie, Nan Wang, Bojun Liu, Jinyue Jiang, Bingliang Zhuang, Ying Zhang, Meixuan Wu, Jianfeng Yang, Kunqin Lv, and Danyang Ma

Supplement

https://doi.org/10.5194/acp-25-10141-2025-supplement

Data sets

LandScan Global 2014 Edward Bright and Amy Rose https://doi.org/10.48690/1524209

MCD12Q1 MODIS/Terra+Aqua Land Cover Type Yearly L3 Global 500m SIN Grid V006 Mark Friedl and Damien Sulla-Menashe https://doi.org/10.5067/MODIS/MCD12Q1.006

MODIS/Aqua Thermal Anomalies/- Fire Daily L3 Global 1km SIN Grid V061 Louis Giglio and Christopher Justice https://doi.org/10.5067/MODIS/MYD14A1.061

ERA5 hourly data on pressure levels from 1940 to present Hans Hersbach et al. https://doi.org/10.24381/cds.bd0915c6

Global gridded GDP under the historical and future scenarios Tingting Wang and Fubao Sun https://doi.org/10.5281/zenodo.7898409

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Short summary
Fires are important sources of air pollution in many regions. This study isolates fire-specific PM2.5 from observations, showing its increasing proportion in recent years. Our findings indicate that fire-specific PM2.5 disproportionately affects impoverished populations in the Asia Pacific. Furthermore, we suggest that, under future climate change, fire-specific PM2.5 will likely continue rising. This highlights the need for interventions to reduce fire-related air pollution and its health impacts.
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