Laboratory of Environmental ChemistryThe Laboratory of Environmental Chemistry (LUC) focuses on fundamental research and education for assessing the impact of human activities and natural processes on human health, environment and climate.
The surface chemistry research group investigates multi-phase chemical processes relevant for atmospheric chemistry and the analytical chemistry research group reconstructs environmental and climatic conditions from high-altitude glaciers.
The Latest News
Congratulations to Dimitri OsmontDimitri successfully defended his PhD at the University of Bern, entitled "Reconstruction of forest fires through chemical analysis of black carbon in ice cores from high- alpine glaciers". This thesis formed part the collaborative project paleo fires with ETH Zürich and University of Bern funded by the Swiss National Science Foundation.
Contact: Margit Schwikowski
Welcome Martina BarandunWe warmly welcome Martina Barandun as Postdoc in the Laboratory of Environmental Chemistry. She joined the Analytical Chemistry group on 1 October 2018.
Martina Barandun studied Geography at the University of Fribourg, where she also obtained her PhD in the Department of Geosciences. For the latter she worked on transient snowline observations to remotely derive seasonal to sub-seasonal glacier mass balance in the Tien Shan and Pamir mountains of Central Asia. At PSI, Martina Barandun will quantify the concentration of different light absorbing impurities such as black carbon or mineral dust particles in surface snow and ice from various glaciers in Central Chile, to estimate their impact on albedo reduction and accelerated melt. This is a joint project with the Centro de Estudios Cientificos in Valdivia, Chile.
Contact: Margit Schwikowski
Tagesschau: Neue Beweise zu Gletscher-SchmelzeThe evening news on Swiss national television, SRF Tagesschau on Saturday evening 19h30, featured LUC's research on regional climate change with a story on the cause of glacier melting at the end of the Little Ice Age in Switzerland.
Successful PhD DefenseJacinta Edebeli successfully defended her PhD with the title "Multiphase Chemical Reactivity in Cold Regions" at the ETHZ. Congratulations! The thesis was part of the MiSo project in co-operation with LUC's Analytical Chemistry research group and the WSL-SLF Davos. The project was jointly funded by Swiss National Science Foundation.
Contact: Thorsten Bartels-Rausch
Current Scientific Highlight
In the first half of the 19th century, a series of large volcanic eruptions in the tropics led to a temporary global cooling of Earth's climate. That Alpine glaciers grew and subsequently receded again during the final phase of the so-called Little Ice Age was due to a natural process. This has now been proven by PSI researchers on the basis of ice cores.
The Latest Publications
A new method for the determination of primary and secondary terrestrial and marine biomarkers in ice cores using liquid chromatography high-resolution mass spectrometry
Talanta 194, 233-242 (2019).DOI: https://doi.org/10.1016/j.talanta.2018.10.042
19th century glacier retreat in the Alps preceded the emergence of industrial black carbon deposition on high-alpine glaciers
The Cryosphere 12, 3311-3331 (2018).DOI: 10.5194/tc-12-3311-2018
Pre-melting and the adsorption of formic acid at the air–ice interface at 253 K as seen by NEXAFS and XPS
Physical Chemistry Chemical Physics 20, 24408-24417 (2018).DOI: 10.1039/C8CP03621G