Aerosol source apportionment modelling using a coupled regional–urban scale system

van Caspel, Willem E.; Favez, Olivier; Jaffrezo, Jean-Luc; Uzu, Gaëlle; Daellenbach, Kaspar R.; El Haddad, Imad; Simpson, David

doi:10.5194/acp-26-8575-2026

Articles | Volume 26, issue 12

https://doi.org/10.5194/acp-26-8575-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-8575-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 12

Research article

|

19 Jun 2026

Research article |

| 19 Jun 2026

Aerosol source apportionment modelling using a coupled regional–urban scale system

Willem E. van Caspel, Olivier Favez, Jean-Luc Jaffrezo, Gaëlle Uzu, Kaspar R. Daellenbach, Imad El Haddad, and David Simpson

Supplement

https://doi.org/10.5194/acp-26-8575-2026-supplement

Data sets

Sources of particulate matter air pollution and its oxidative potential in Europes Daellenbach et al. https://doi.org/10.5281/zenodo.4048589

European Aerosol Phenomenology - 8: Harmonised Source Apportionment of Organic Aerosol using 22 Year-long ACSM/AMS Datasets G. Chen https://doi.org/10.5281/zenodo.6672710

Model code and software

Open Source EMEP/MSC-W model v5.5 (202412) EMEP MSC-W. https://doi.org/10.5281/zenodo.14507729

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Short summary

Exposure to particulate matter (aerosols) is the most important environmental risk factor relating to negative health impacts. Understanding the sources of aerosols is thereby of great importance. This paper compares modelled aerosol source contributions to those from three European observationally derived datasets. Urban-scale modelling is shown to be impactful, although modelling of aerosols from some anthropogenic sources remains challenging.