Volatile organic compound sources and impacts in an urban Mediterranean area (Marseille, France)

Dufresne, Marvin; Salameh, Thérèse; Leonardis, Thierry; Gille, Grégory; Armengaud, Alexandre; Sauvage, Stéphane

doi:https://doi.org/10.5194/acp-25-5977-2025

Articles | Volume 25, issue 11

https://doi.org/10.5194/acp-25-5977-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-5977-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 11

Research article

|

16 Jun 2025

Research article |

| 16 Jun 2025

Volatile organic compound sources and impacts in an urban Mediterranean area (Marseille, France)

Marvin Dufresne, Thérèse Salameh, Thierry Leonardis, Grégory Gille, Alexandre Armengaud, and Stéphane Sauvage

Supplement

https://doi.org/10.5194/acp-25-5977-2025-supplement

Data sets

Measurement of Greenhouse gases (other halogenated) and VOC (hydrocarbons) at Marseille Longchamp (3) T. Salameh and M. Dufresne https://doi.org/10.48597/KME2-YC9U

VOC (hydrocarbons) at Marseille Longchamp (4) T. Salameh and M. Dufresne https://doi.org/10.48597/F5BM-XPAV

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Short summary

This paper discusses the 18-month-long measurement of non-methane hydrocarbons (NMHCs) in Marseille, where there was no measurement since early 2000, despite the impact of NMHCs on air quality and climate. Traffic-related sources are the largest contributor to NMHC concentrations in Marseille, and shipping strongly contributes to the formation of aerosols. Finally, the Covid-19 lockdown had an impact on NMHC concentrations, reaching a 50 % decrease for traffic-related sources.