Research activity
Our research focuses on assessing exposure levels to gaseous and particulate air pollutants in suspension in the air (PM10, PM2.5, ultrafine) and studying their toxic effects in humans, particularly in the respiratory system.
The development of this theme is based on strategies for sampling particles suspended in outdoor air, their physicochemical characterisation and the evaluation of their toxicity using experimental models (in vitro, ex vivo, in vivo) or carried out in humans. The aim is to examine the underlying physiopathological mechanisms frequently suspected of being involved in the development of respiratory pathologies, and to propose biomarkers of exposure or the effect of atmospheric pollution.
Our approach is based on two main orientations:
Physicochemistry of suspended particles (PM10, PM2.5, ultrafine) and identification of sources
Particulate sampling is carried out in urban or rural areas, subject to various natural or anthropogenic influences such as road traffic, industrial activities or marine emissions. The aim of examining the chemical characteristics of particles (ionic species, major elements and metallic traces, organic compounds) is to identify and/or propose source tracers to enable the origin of particles to be determined. Source-receptor models are used to identify sources and assess their contributions to PM concentration in the atmosphere.
Mechanisms of toxic action of air pollutants
Based on experimental toxicology, we are helping to improve knowledge of changes in cellular homeostasis induced by exposure to environmental pollutants by characterizing oxidant stress parameters, inflammatory response, metabolic activation, genotoxicity and epigenetic alterations. The evaluation of these toxic effects is carried out in-vitro on pulmonary and blood cell line models (A 459, BEAS-2B, THP-1) in mono and/or co-culture but also on primary cells (alveolar macrophages, lymphocytes, blood monocytes) in order to better integrate the cellular diversity of the respiratory tract. The study of these mechanisms of toxic action, using molecular, cellular and metabolomic biology methods, makes it possible to propose new biological markers of exposure or effect potentially involved in the effects of environmental pollutants on human health.
Team members
| BILLET Sylvain | MCF-HDR |
| BOUHSINA Saad | MCF |
| COURCOT Dominique | Pr |
| FADEL Marc | MCF |
| FERTE Amélie | Contractual EI |
| LANDKOCZ Yann | MCF |
| LEDOUX Frédéric | Pr |
| MARTIN Perrine | MCF |
| VERDIN Anthony | IR |
Scientific collaborations
Nationals :
- Laboratoire de Météorologie Physique (LaMP) UMR 6016 CNRS / UCA, Université Clermont Auvergne.
- UMR 261 MERIT « Mère et enfant en milieu tropical : pathogènes,système de santé et transition épidémiologique », IRD – Université de Paris
- Unité Aliment Bioprocédés Toxicologie Environnements, ABTE, EA 4651, Equipe « Toxicologie de l’Environnement : milieux aériens et cancers, ToxEMAC », Université de Caen Basse Normandie, Université de Rouen
- Groupement des Hôpitaux de l’Institut Catholique de Lille, GHICL, Service de Pneumologie, Service de Médecine et Gériatrie
- Laboratoire Impact de l’Environnement Chimique sur la Santé Humaine, Impecs, EA 4483, Université de Lille
- Laboratoire Lésions des Acides Nucléiques, Service de Chimie Inorganique et Biologique, UMR E3 – CEA / Université Joseph Fourier, Grenoble
- Institut de Recherches en Santé-Environnement-Travail – IRSET – UMR Inserm 1085, Faculté des Sciences pharmaceutiques et biologiques de Rennes, Université de Rennes
- Institut National de l’Environnement Industriel et des Risques, INERIS, Verneuil en Halatte
- Laboratoire Génie Civil et géoEnvironnement, LGCgE, EA 4515, groupe ISA de Lille
- IMT Lille-Douai, Département Sciences de l’Atmosphère Génie de l’Environnement, SAGE.
- Laboratoire de Santé Publique et Environnement, EA 4064 « Impacts sanitaires des pollutions », Université Paris Descartes
Internationals :
- Laboratoire Emissions, Measurements, and Modeling of the Atmosphere (EMMA), Faculty of Sciences, Saint Joseph University, Liban.
- Departemento de Ingenierias Quimica y Biomolecular, Universidad de Cantabria, Santander, Espagne.
- Faculté de Médecine, Université de Cagliari, Italie.
- Bioactive Molecules Research Group, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Lebanese University, Liban.
- Department of Biology, Faculty of Sciences, University of Balamand, Liban.
- King’s College London, Environmental Research Group, Royaume-Uni.
- Equipe » Thermodynamique et Génie des Procédés Chimiques « , Département Chimie, Faculté Polytechnique de l’Université de Mons, Belgique.
- Laboratoire de Toxicologie, Faculté de Médecine Pharmacologie Odontologie, Université Cheikh Anta Diop de Dakar, Sénégal.
- Norwegian Institute of Public Health, Department of Chemical and Radiation, Norway
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Bologna, Italy
- Shandong University, Environment Research Institute, China
current thesis
Name | Period | Title |
| Salimata Thiam | 2019-2022 | Characterisation of indoor air pollution and study of its impact on the health of Senegalese populations |
| Malak Chwaikani | 2021-2024 | Study of autophagy and senescence of human lung cells exposed to fine and ultrafine particles |
| Suen Boulé | 2022-2025 | In situ study of the effects of air pollution on lung epithelial cells exposed to an air-liquid interface |
| Eliane Farah | 2022-2025 | Characterisation of fine particles in Cairo (Egypt) |
| Camille Bonnefous | 2023-2026 | Microplastics and their compounds in air: study of toxicity and epithelial-mesenchymal transition on respiratory barriers |
| Marcos MIGAN | 2023-2026 | Exposure to air pollution in Cotonou (Benin) and the relationship with respiratory health in asthmatic children |
| Jean-Pierre El Morr | 2024-2027 | Characterization of the organic fraction of suspended particles by size |
| Louise Verhaeghe | 2024-2027 | Toxicity of atmospheric emissions from the industrial zones and ports of Dunkirk and Fos-sur-mer |
Research agreement
- 2022-2025 : CCHF/CUD project: “Study of indoor and outdoor air quality in maritime Flanders with a focus on endocrine disruptors”.
- 2021-2024 : ANR project, A4A “Air quality and quality of life for asthmatic children in Africa”.
- 2021-2023 : ANSES/ADEME project, AROMATOX ” Characterisation, understanding and modelling of the toxicity of BTEX mixtures “.
- 2021-2023 : ANSES project, COPOBOIS “Innovative coupling for the evaluation of the effect on the respiratory tract of Poly-exposure to particulate and gaseous emissions from the mechanical transformation of Wood”.
- 2020-2026 : Plan Investissement d’Avenir 3, TI-DEC ” Dunkerque, l’énergie créative “.
- 2020-2022 : ADEME project, TOXTEM “Toxicity of atmospheric particles from rural, urban-industrial and port areas and impact on the epithelio-mesenchymal transition of lung cells”.
- 2019-2023 : Coastal Health Space Project, PAPOU ” Study of the impregnation in phthalates of a population in urban-industrial areas “.
- 2019-2021 : IRD / AUF / STDF / MISTRALS, POLCAIR Project ” Air pollution in Cairo: sources and impacts “.
- 2019-2021 : MTE, EMMA Pole Project ” Multi-scale Mobile Atmospheric Experiment “.
- 2018-2022 : BIONEUROMET Project “Environmental exposure to particulate matter-bound manganese and other metals: bioaccessibility, biomonitoring, and their association with the neurological function”, Spanish Research Agency, Project leader: Universidad de Cantabria, Santander, Spain.
- 2016-2021 : Interreg V Project France Wallonia Flanders “DepollutAir: Culture supernatants and extracts of RNA, DNA and proteins from cells exposed to emissions from catalytic devices.
- 2015-2020 : CPER Climibio project, “WP3: Impact of climate change and environmental dynamics on living organisms”.
Recent publications
- FAKHRI N., YEHYA A., EL KAWAK M., FADEL M., FARAH E., OIKONOMOU K., SCIARE J., COURCOT D., LEDOUX F., AFIF C., ABOU-KHEIR W., and DHAINI H., Diesel generator exhaust emissions : Chemical characterization and cytotoxicity in bladder spheroids. Atmospheric Pollution Research, 16(9):102571, 2025. (10.1016/j.apr.2025.102571). (hal-05084289).
- ALLOUCHE Y., MARCHETTI S., BENGALLI R., MOTTA G., PAGLIARULO L., CAZIER F., ACHARD S., FADEL M., MANTECCA P., COURCOT D., LEDOUX F., VERDIN F., and GUALTIERI M., Comparison of submerged and air liquid interface exposure : limitations and differences in the toxicological effects evaluated in bronchial epithelial cells. Environmental Research, 279(Part 2):121856, 2025. (10.1016/j.envres.2025.121856). (hal-05084263).
- AL MAWLA R., COEUR C., HOUZEL N., BILLET S., AL ALI F.,GAUDION V., and ROMANIAS M., Temperature dependent kinetics and insights on the gas-phase products of the reaction between prenol and hydroxyl radicals. Atmospheric Environment, 354:121260, 2025. (10.1016/j.atmosenv.2025.121260). (hal-05283817).
- AL MAWLA R., COEUR C., HOUZEL N., BILLET S., AL ALI F.,GAUDION V., GENEVRAY P., CAZIER F., and ROMANIAS M., Ozonolysis of prenol, a second-generation biofuel, in atmospheric simulation chambers: Temperature dependent kinetics and gas-phase products analysis. Atmospheric Environment, 352:121188, 2025. (10.1016/j.atmosenv.2025.121188). (hal-05283819).
- TANIOS C., BILLET S., MEAUSOONE C., LANDKOCZ Y., GENNEQUIN C., LABAKI M., NSOULI B., ABOUKAIS A., CAZIER F., and ABI-AAD E., Impact of waste origin and post-treatment techniques on the composition and toxicity of biogas. Science of the Total Environment, 966:178688, 2025. (10.1016/j.scitotenv.2025.178688). (hal-05063322).
- FARAH E., FADEL M., MANSOUR G., FAKHRI N., K HASSAN S., BORAY M., EL-NAZER M., WJEIDA A., ABDELWAHAB M., OIKONOMOU K, SAUVAGE S., BORBON A., SCIARE J., COURCOT D., LEDOUX F., and AFIF C., Unveiling the organic chemical composition and sources of organic carbon in PM2.5 at an urban site in Greater Cairo (Egypt): A comprehensive analysis of primary and secondary compounds. Environmental Research, 263(Part 2):120118, 2024. (10.1016/j.envres.2024.120118). (hal-04740326).
- FAKHRI N., FADEL M., ABDALLAH C., KARAM C., IAKOVIDES M., OIKONOMOU K, FORMENTI P., DOUSSIN J.F., BORBON A., SCIARE J., L HAYES P., and AFIF C., Characterization of PM2.5 emissions from on-road vehicles in the tunnel of a major Middle Eastern city. Environmental Pollution, 361:124769, 2024. (10.1016/j.envpol.2024.124769). (hal-04775086).
- FADEL M., FARAH E., FAKHRI N., LEDOUX F., COURCOT D., and AFIF C., A Comprehensive Review of PM-Related Studies in Industrial Proximity: Insights from the East Mediterranean Middle East Region. Sustainability, 16(20):8739, 2024. (10.3390/su16208739). (hal-04740317).
- BADRAN G., CHWAIKANI M., VERDIN A., ABBAS I., SIMONIN O., CAZIER F., ROUMIE M., COURCOT D., LO GUIDICE J.M., LEDOUX F., and GARCON G., Chemical Composition of PM2.5-0.3 and PM0.3 Collected in Southern Lebanon and Assessment of Their Toxicity in BEAS-2B Cells. Atmosphere, 15(7):811, 2024. (10.3390/atmos15070811). (hal-04710487).
- ALLOUCHE Y., FADEL M., FERTE A., VERDIN A., LEDOUX F., and COURCOT D., Phenomenology of the Composition of PM2.5 at an Urban Site in Northern France. Atmosphere, 15(5):603, 2024. (10.3390/atmos15050603). (hal-04583839).
- JABER N., BILLET S., How to use an in vitro approach to characterize the toxicity of airborne compounds. Toxicology in Vitro, 94, pp.105718, 2024. ⟨10.1016/j.tiv.2023.105718⟩. ⟨hal-04402327⟩
- LE GALL-LANOTTO C., VERDIN A., CAZIER F., BATAILLE-SAVATTIER A., GUERE C., DORR M., FLHURH J., COURCOT D., VIE K., MISERY L., Road‐traffic‐related air pollution contributes to skin barrier alteration and growth defect of sensory neurons. Experimental Dermatology, 33 (1), pp.e15009, 2024. ⟨10.1111/exd.15009⟩. ⟨hal-04411208⟩
- EXPOSITO A., B. MARKIV B., M. SANTIBANEZ M., FADEL M., LEDOUX F., COURCOT D., and FENANDZ-OMO I., Ascorbate oxidation driven by PM2.5-bound metal(loid)s extracted in an acidic simulated lung fluid in relation to their bioaccessibility. Air Quality, Atmosphere & Health, 17(1):177– 189, 2024. (10.1007/s11869-023-01436-8). (hal-04298689).