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GEOS-Chem-IGE/hough2026_atmo-plast-emis_sims: v1.0.1

Open MIND 2026
Ian Hough, Hélène Angot, Ruth Price, Nela Dobiasova, Théo Segur, Erfan Jahangir, Yanxu Zhang, Didier Voisin, Jeroen E., Sonke, Jennie L. Thomas

Summary

This is actually a code repository, not a full research paper — it contains the computer simulation tools used in a related study that recalculated how much microplastic pollution enters the air worldwide. The underlying research suggests that previous estimates of airborne microplastics were too high because they didn't properly account for different measurement methods; using more consistent, size-standardized data shows lower global emissions than earlier studies claimed. This matters because accurately knowing how much microplastic we're breathing in is a key step toward understanding health risks, and overestimating pollution levels could lead to misplaced public concern or policy priorities.

Code to simulate atmospheric microplastic emissions, transport, and deposition as described in "Reduced global atmospheric microplastic emissions from size-harmonized observations" (Hough et al. 2026).

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