Laura-Hélèna Rivellini
PhD in Chemistry
thesis defended on
12th December 2017
Département Sciences de l'Atmosphére, Génie de l'Environnement -
SAGE
Laboratoire d'Optique Atmosphérique - LOA

Title and thesis summary
Publications
Oral & posters presentation

Future

Linked In - Research Gate

 


Title and thesis summary

Physico-chemical, optical properties and source apportionment of aerosols in West Africa.

The aim of this thesis consists in studying the chemical nature, the origins as well as the optical properties of aerosols in West Africa. We focused on establishing the links between the chemical composition of fine particles at surface and aerosols optical properties. Our study is based on measurements acquired during the SHADOW field campaign, implemented on the M’Bour (Senegal) site during two intensive observation periods: March to June 2015 (IOP-1) and November 2015 to January 2016 (IOP-2).

For this purpose, an instrumentation allowing online chemical characterization of surface PM1 (ACSM, TEOM-FDMS, aethalometer), at high time resolution, was implemented in parallel with instruments measuring aerosols optical properties at surface (aethalometer, nephelometer) and along the atmospheric column by remote sensing (Lidar, photometer).

The coupling of meteorological data with statistical tools allowed determining the local and/or regional contribution of the different species, and identifying the source areas responsible for the high concentrations observed on site. The source receptor model (PM) allowed to further investigate the submicronic organic fraction, highlighting a fast photochemistry and the influence of specific anthropogenic activities (waste burning, fish smoking).

We were also able to characterize, per season, the type of aerosols contributing to the fine particle extinction measured at surface, as well as to show links/differences between remote sensing and surface chemical/optical properties of fines particles during the two IOP.

Thesis supervisors : RIFFAULT Véronique, CHIAPELLO Isabelle
Referees : FORMENTI Paola, SCIARE Jean
Examiners : FRENEY Evelyn, TANRE Didier

Laboratories : LOA - SAGE

Financing : Labex CaPPA

 

Publications

Articles published in peer-reviewed journal

  1. L.-H. RIVELLINI, I. CHIAPELLO, E. TISON, M. FOURMENTIN, A. FERON, A. DIALLO, T.-M. N’DIAYE, P. GOLOUB, F. CANONACO, A. S. H. PREVOT, V. RIFFAULT, Chemical characterization and source apportionment of submicron aerosols measured in Senegal during the 2015 SHADOW campaign, Atmospheric Chemistry and Physics 17, 10291-10314 (2017), DOI 10.5194/acp-2016-1127
  2. J.-C. PERE, L.-H. RIVELLINI, S. CRUMEYROLLE, I. CHIAPELLO, F. MINVIELLE, F. THIEULEUX, M. CHOEL, I. Popovici, Simulation of African dust properties and radiative effects during the 2015 SHADOW campaign in Senegal, Atmospheric research, 199(Supplement C), 14–28,doi:10.1016/j.atmosres.2017.07.027, 2018

Oral and posters presentation

International conference with conference proceedings

  1. L.-H. RIVELLINI, E. TISON, I. CHIAPELLO, V. RIFFAULT, Source apportionment of submicron particles in West Africa using Positive Matrix Factorization, oral presentation, International Conference on Atmospheric Dust, Castellaneta Marina (Italie), 12-17 juin 2016.
  2. L.-H. RIVELLINI, E. TISON, I. CHIAPELLO, V. RIFFAULT, Investigating the contribution of dust particles in the submicron fraction at a West African site, oral presentation, International Conference on Atmospheric Dust, Castellaneta Marina (Italie), 12-17 juin 2016.
  3. L.-H. RIVELLINI, E. TISON, I. CHIAPELLO, V. RIFFAULT, Real-time chemical characterization of submicron particles in M’Bour, Senegal during the 2015 dry season, oral presentation, European Aerosol Conference, Tours (France), 4-9 septembre 2016.
  4. L.-H. RIVELLINI, I. CHIAPELLO, S. CRUMEYROLLE, E. TISON, V. RIFFAULT, Chemical characterization and optical properties of submicron particles measured in M’Bour, Senegal during 2015/2016 dry season, Poster, European Aerosol Conference, Tours (France), 4-9 septembre 2016.
  5. L.-H. RIVELLINI, I. CHIAPELLO, S. CRUMEYROLLE, P. GOLOUB, T. PODVIN, E. TISON, V. RIFFAULT, Chemical composition and optical properties of aerosols measured in Senegal during the SHADOW campaign, Poster, International Conference on Aerosol Cycle, Villeneuve d’Ascq (France), 21-23 mars 2017.

Other conferences

  1. L. RIVELLINI, V. RIFFAULT, I. CHIAPELLO, E. TISON, S. CRUMEYROLLE, P. GOLOUB, Preliminary analysis of in situ and optical measurements of particulate pollution during winter 2014/2015 at Lille, Poster, 2ème Journée scientifique du Labex CaPPA, 17 février 2015, Villeneuve d’Ascq.
  2. L. H. RIVELLINI, V. RIFFAULT, I. CHIAPELLO, E. TISON, M. FOURMENTIN and the SHADOW-2 team, Chemical characterization and source apportionment of submicron particles during the SHADOW-2 campaign, Communication, 3ème Journée scientifique du Labex CaPPA, 25 février 2016, Villeneuve d’Ascq.
  3. L. H. RIVELLINI, V. RIFFAULT, I. CHIAPELLO, Estimating the dust contribution to submicron aerosols observed at a West African site using absorption measurements, Poster, Atelier thématique « Propriétés et impacts des poussières terrigènes sur le climat et l'environnement », 2-3 mars 2016, Créteil.
  4. P. AUGUSTIN, S. CRUMEYROLLE, L. RIVELLINI, M. FOURMENTIN, V. RIFFAULT, K. DEBOUDT, Y. DERIMIAN, M. CHOËL, I. CHIAPELLO, L. BLAREL, V. BOVCHALIUK, H. DELBARRE, A. DIALLO, E. DIEUDONNE, C. GENGEMBRE, P. GOLOUB, R. LOISIL, T. NDIAYE, T. PODVIN, A. SOKOLOV, D. TANRE, E. TISON, B. TORRES, F. UNGA, I. VESELOVSKII, Harmattan, sea breeze, Nocturnal Low-Level Jet dynamics and aerosol variability in a coastal area of Senegal, Western Africa, Poster, Atelier thématique « Propriétés et impacts des poussières terrigènes sur le climat et l'environnement », 2-3 mars 2016, Créteil.
  5. L. H. RIVELLINI, E. TISON, I. CHIAPELLO, M. FOURMENTIN, V. RIFFAULT, Chemical characterization and source apportionment of non-refractory submicron particles in West Africa using Positive Matrix Factorization, oral presentation, Conseil scientifique du Labex CaPPA, 7 juillet 2016, Villeneuve d’Ascq.
  6. P. CODDEVILLE, L. RIVELLINI, V. RIFFAULT, Aérosols en Afrique de l'Ouest : caractérisation physico-chimique, propriétés optiques et identification des sources, oral presentation, 5ème Colloque international "Environnement et Développement Durable" - Changements climatiques : causes, impacts atténuation et adaptation, 10-15 octobre 2016, Rabat (Maroc).
  7. L. RIVELLINI, V. RIFFAULT, P. CODDEVILLE, I. CHIAPELLO, S. CRUMEYROLLE, P. GOLOUB, T. PODVIN, E. TISON, Chemical characterization and optical properties of submicron particles measured in M'Bour, Sénégal during 2015/2016 dry season, Poster, 5ème Colloque international "Environnement et Développement Durable" - Changements climatiques : causes, impacts atténuation et adaptation, 10-15 octobre 2016, Rabat (Maroc).
  8. L. H. RIVELLINI, I. CHIAPELLO, V. RIFFAULT, E. TISON, S. CRUMEYROLLE, Chemical composition and optical properties of aerosols measured in Senegal during the SHADOW campaigns, oral presentation, Journée des Doctorants IREPSE, 13 juillet 2017, Villeneuve d’Ascq.

Future

Currently research fellow at the National University of Singapore in the Department of Civil and Environmental Engineering working in Alex Lee group. https://blog.nus.edu.sg/alexleegroup/group-members/

Current study
(1) to determine sources and formations processes of soots and organic aerosols in Singapore using SP-AMS (soot-particle aerosol mass spectrometer)
(2) to develop a chemical characterization technique of signel particle using SP-AMS, to identify its mixture state

--> contact Laura-Hélèna Rivellini
Linked In - Research Gate