May 2020
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[Met-jobs] PHD Studenship in Paris - topic : Air quality

From "Gilles Foret" <>
Date Mon, 04 May 2020 15:26:16 +0200

The LISA Laboratory is proposing a PhD studenship on the topic of air quality 

Title of the thesis: Simulation of the aerosol oxidative potential : a new 
health related indicator of air quality"

The mass of fine particles with a diameter of less than 2.5 µm (PM2.5) has 
traditionally been used as an indicator of the health impact of particulate 
matter pollution. Nevertheless, it is well known that the health impact of 
particulate matter depends on its size and chemical speciation. In particular, 
carbonaceous species with high oxidizing power and certain transition metals 
can exert oxidative stress on cells, and promote inflammatory reactions. This 
oxidative potential (OP) can be characterized in ambient air samples by 
extracellular tests, and varies according to the source of the aerosol and in 
particular of organic aerosol.

The thesis aims at modelling the oxidative potential of the aerosol and its 
organic fraction with the CHIMERE air quality model. We seek at determining if 
and how the spatial and temporal variability of the oxidative potential differs 
from the mass concentrations of PM2.5 and to quantify its main sources 
(traffic, residential heating, industry, biogenic, etc.). Such a modelling 
approach is highly novel has not yet been undertaken in France.

This thesis should ultimately contribute to a transformation of air quality 
management policies through the implementation of a new predictive variable 
relevant to health exposure in order to provide France with a more effective 
tool to reduce population exposure.

If you are interrested you access the full subject at :


Dr Gilles Foret

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