Dr. Imad El Haddad

Group Head Molecular Cluster and Particle Processes
Imad El Haddad
Telefon
+41 56 310 29 95
Paul Scherrer Institut PSI
Forschungsstrasse 111
5232 Villigen PSI
Schweiz
Digitale Visitenkarte

My vision is to understand and quantify the processes by which anthropogenic emissions have changed the composition and levels of atmospheric pollutants and how these changes affect earth climate and public health. To gain insights into the mechanisms behind these processes and identify pollution sources, we develop and use new online and offline mass spectrometers, which analyze the atmospheric composition on a molecular level and down to 1 Hz time resolution. We deploy these instruments in the laboratory during simulation experiments and in the Field. We collaborate with global modelers and biochemist to quantify the overall impact of air pollution on climate and health.

2018- present Group head, Molecular Cluster and Particle Processes group at the Laboratory of Atmospheric Chemistry (LAC), Paul Scherrer Institut (PSI), Switzerland
2018-2019 Tenured scientist, project leader, deputy head, Molecular Cluster and Particle Processes group at the LAC, PSI, Switzerland
2015-2018 Senior scientist, Smog chamber group at the LAC, PSI, Switzerland
2011-2015 Postdoctoral fellow at the LAC, PSI, Switzerland
2007 – 2011 Ph.D. student in atmospheric chemistry, at "Laboratoire Chimie Provence", Atmospheric Reactivity and Instrumentation group, University of Provence, Marseille, France. Title: Primary and secondary fractions of organic aerosol; Source contribution and atmospheric aging in an urban Mediterranean environment, Marseille, France
2006 – 2007 Second year masters in environmental sciences: analytical chemistry, reactivity and modeling, University of Provence, Marseille, France (with distinction, 1/9).
2005 – 2006 First year masters in general chemistry at the faculty of sciences, in Saint-Joseph University of Beirut (USJ), Lebanon (with distinction, 1/10).
2002 – 2005 Bachelor of science in chemistry at the faculty of sciences, in USJ, Lebanon (with distinction, 1/14).
Identification and quantification of primary and secondary molecular markers in atmospheric aerosol using mass spectrometry techniques (GC/MS, HPLC/APCI-MS2 , HPLC/ESI-MS2).
Source apportionment of organic aerosol in ambient atmospheres using molecular markers, 14C measurements and AMS data combined with statistical models (e.g. Chemical Mass Balance, CMB).
Chemical characterization of main emission sources of hydrocarbons and organic aerosol (e.g. cooking processes, combustion engines, wood burning ...), determination of the related emission factors and quantification of their secondary organic aerosol potential by means of smog chamber experiments.
Characterization of gas phase and in-cloud aqueous phase aging processes and their impact on the molecular marker profiles, on the formation of high molecular weight compounds (i.e. oligomers) and on the organic aerosol functional groups and oxidation state
2007 – 2010 MENRT research fellowship from the French ministry of research
2005 Excellence Scholarship from the University of Saint Joseph as the top 1% students of the faculty of sciences
2005 “Distinction Prize” from the University of Saint Joseph as the best student in the class of 2005.
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