Myriam Janin
Paula Reis Marinho
TRACE-DUST: Chemical and isotopic properties as tracers of airborne particles collected from the Estarreja and Provence OHMs: implications to exposure and human health risk assessment
Toxic concentrations of potentially harmful elements in ambient air can lead to (1) hazardous impact of airborne PM in the health of the population and (2) contamination of water supplies, edible crops and human food supply.
Estarreja and Provence regions are impacted by industrials activities, road traffic and growing urbanization and their air quality degradation is a major issue in terms of health risks and environmental impact. Exposure to PM has been associated with respiratory symptoms, decreased lung function, worsening of asthma and the development of chronic bronchitis.
Considering that dust is the most important contributor for nonpoint source pollutants to aquatic and terrestrial systems, dust deposition data is relevant information to assess potential impacts on humans and ecosystems.
This multi-proxy study aims at correlating dust origin (using isotopes “fingerprints”) and physicochemical dust properties, to potential risks (magnitude of exposure and bioavailability) in terms of human health and environmental effect.
Projet ROHM
OHM(s) concerné(s)
  • OHM Estarreja
  • OHM Bassin Minier de Provence
Biogéochimie, Chimie, Géologie, Paléoenvironnement


Myriam Janin est maître de conférences à l’Université de Nîmes depuis 2012. Docteur en géochimie isotopique de l’Université de Brest (2010), elle est spécialisée dans l’utilisation des méthodes chimiques et isotopiques dans le traçage des processus environnementaux. Ses différents travaux concernent aussi bien l’origine des roches, la traçabilité des produits agroalimentaires, que l’impact des PM, avec par exemple la publication dans Particle&Fibre Toxicology de « Low solubility particles and Trojan-horse type mechanism of toxicity: the case of cobalt oxide on human lung cells»(2015).
Depuis 2014 elle est impliquée dans 3 projets portés par les OHM-BMP et LitMed sur la caractérisation des PM et l’utilisation des isotopes pour leur traçabilité.
Ses principales publications sur ces thématiques sont :
Janin M., Techer I., Boutonnet F., Fromage-Mariette A., et al. (2015) : 87Sr/86Sr Signature of Atmospheric PM for Sources Emissions Monitoring. Goldschmidt Abstracts, 2015-1418
Medini, S., Janin, M., et al. (2015). Methodological development for 87Sr/86Sr measurement in olive oil and preliminary discussion of its use for geographical traceability of PDO Nîmes (France). Food Chemistry 171, 78-83, doi: 10.1016/j.foodchem.2014.08.121 IF2013: 3.259
Janin, M., Medini, S. Techer, I., (2014). Methods for PDO olive oils traceability: State of art and discussion about the possible contribution of Strontium isotopic tool. European Food Research and Technology 239, 745-754.
Janin, M., Hémond, C., et al., (2012). Amsterdam-St. Paul plateau: a complex hotspot/DUPAL-flavored MORB interaction. Geochemistry,Geophysics,Geosystems, 13, Q09016
Depuis 2012 M. Janin a été impliqué dans l’encadrement de plusieurs étudiants de master ainsi que d’un étudiant en thèse


José Francisco
José Francisco Santos is an Assistant Professor of Geosciences at the University of Aveiro (UA). He received his BSc and PhD degrees in geology from the universities of Lisbon and Aveiro, respectively. His main research interests are radiogenic isotope geology, geochemistry, igneous and metamorphic petrology, provenance studies and marine geology. He has been involved in the teams of eight research projects (six already concluded, two still active) funded by Fundação para a Ciência e a Tecnologia (Portugal) and one funded by UNESCO/IUGS (concluded). He was the principal investigator of the Petrochron project (PTDC/CTE-GIX/112561/2009), which received funding amounting to 92000 euros. José Santos has participated in different committees at both department and university levels. In the Geobiotec research unit, he is the Head of the Lithospheric Evolution group and of the Laboratory of Isotope Geology. Recently (since June 1st, 2015), José Santos became also Head of the...