EMMA : « Multi-scale and Mobile Atmospheric Experiment »

Summer 2017, a measurement campaign was launched in Dunkirk region in the context of the EMMA’s project. This project aims to study atmosphere dynamics, potentally influencing temporal variability of aerosols and precursor gases, and to evaluate its consequences in terms of toxicology in urban region, especially in Dunkirk’s industrial and coastal areas.

The main purpose is to bring multidisciplinary (physics, chemistry, physico-chemistry and toxicology) and multi-scale (spatial and temporal) elements to answer questions such as:

– What is the impact of sea breeze on the evolution of distribution and mixture of aerosols originated from industrial areas, at urban scale ?

– What could be the influence of atmosphere dynamics on pulmonary toxicity leading to respiratory diseases ?

Photo (on the right): Experimental devices with the UMA, a tethered balloon and the UM of CCM/

This measurement campaign will provide data and insights to Sarah’s Guilbaud thesis, co-financed by the Labex. Her work focuses on aging of pollution aerosols in urban areas. Also it will contribute to WP3’s advancement, completing campaigns previously ran in the contexte of the Labex CaPPA such as SHADOW.

For this campaign, various instruments have been set up on a diversity of sites influenced by urban plumes with sea breeze :
– the Mobile Atmospheric Unit from ULCO (BQR 2016 UMA),
– a tethered balloon
– the Mobile Unit of the Centre Commun de Mesure (UM-CCM)

5 partner laboratories actively participate to this campaign : LPCA, UCEIV, LOA, PC2A and CCM. Their several expertises in toxiocology, physics and chemistry contribute to the success of the project.

EMMA’s project contributes to Labex CaPPA’s activities through WP3 but also to CPER 2015-2020 CLIMIBIO (WP1, WP3 et WP4) and IRENE.

Contact : Patrick Augustin, LPCA