Dr. Giulia Stefenelli, PhD of ETH Zürich and researcher at the Paul Scherrer Institute in Würenlingen, has received yesterday in Berne the Swiss Aerosol Award 2019 for her excellent work about biomass burning*.
Giulia Stefenelli and coauthors present herein a new method to model the secondary organic aerosol (SOA) formation from complex emissions with a special focus on biomass burning. Biomass burning emissions from residential combustion are a major source of gaseous and particulate air pollution on urban, regional and global scales.
Here, using smog chamber measurements, the authors estimate the contribution of different precursor classes to the SOA formed during emission aging. They demonstrate that SOA yields of these precursor classes in complex emissions can largely be represented by yields determined using single precursors. For SOA yield calculations, they developed a new box model solved using advanced data science techniques.
This modelling framework may be generalizable for other complex emissions sources, enabling the determination of the contributions of different chemical classes at a level of complexity suitable for implementation in regional air quality models. The authors reveal the most important precursors in biomass burning emissions, and the modelling framework developed can be used to follow the evolution of their oxidation products in the particle phase, allowing a direct comparison with molecular composition measurements using recently developed chemical ionization mass spectrometers.
SOA production by most of these precursors has received little study so far; therefore, data analysis methods developed here suggest directions for future laboratory studies and a clear path for constraining SOA effects and supporting source specific mitigation policies.
*Secondary organic aerosol formation from smoldering and flaming combustion of biomass: a box model parametrization based on volatility basis set.
Giulia Stefenelli, Jianhui Jiang, Amelie Bertrand, Emily A. Bruns, Simone M. Pieber, Urs Baltensperger et al; Atmos. Chem. Phys., 19, 11461–11484, 2019; https://doi.org/10.5194/acp-19-11461-2019
Thanks to a generous donation from the Swiss Lung Foundation, every year the Swiss
Aerosol Group (SAG) can award a prize of 5'000 CHF to the best scientific publication
in the field of international Aerosol research, written from within Switzerland.
The prize will be awarded at the annual SAG conference, which takes place in November. The choice of the prize winner will be decided by the Prize Commission. The winner will present the awarded work at the annual conference.
As a rule, the work should come from a Swiss university, clinic or research institute.
The manuscript can be written in German, French or English and must be either accepted for publication in a peer-reviewed journal or published in a peer-reviewed journal not longer than one year.
The prize goes to the first author.
The application must include:
1) A nomination proposal
2) A curriculum vitae including a list of publications
3) A copy of the manuscript of the published work
The documents must be submitted by the 31st of August, in the year of the SAG conference which takes place in November, to the following address or internet address:
Dr. med. Otto Brändli
President of the Swiss Lung Foundation
contact to Otto Brändli ¦ submit Files
Prof. Dr. Beatrice Beck-Schimmer (University of Zurich)
Dr. med. Otto Brändli (President, Swiss Lung Foundation)
Prof. em. Dr. Peter Gehr (University of Bern)
Prof. Dr. Barbara Rothen-Rutishauser (Adolphe Merkle Institute, University of Fribourg)
Prof. Dr. Wendelin Stark (ETH Zurich)
Dr. Peter Strähl (Bafu)
Communication of the prize:
The prize winner will be introduced on the website of the Swiss Lung Foundation, and is requested to write a review article about the subject of the nominated work which will be published in Swiss Medical Weekly (SMW; http://www.smw.ch).