Investigation of cloud residuals and interstitial aerosol on a mountain top in central Sweden. In collaboration with partners from Sweden and USA; June/July 2003.
Characterization of the ambient aerosol and its precursors in New York City as part of the US EPA “Supersite” project. Cooperation with partners from USA; January/February 2004.
Instrument intercomparison; and characterization of the ambient aerosol, and its cloud condensation properties, on Mt. Kleiner Feldberg. Cooperation with other departments at MPI for Chemistry and University of Frankfurt; Summer 2004 and 2005.
Investigation of the fireworks aerosol during New Year’s 2004/2005 in Mainz. Collaboration with the Air Chemistry Department of MPI for Chemistry; December 2004 – January 2005.
Characterization of fine and ultrafine particle emissions from steelworks processes. EU project in collaboration with partners from UK, Germany and France; July 2004 – December 2007.
Measurements at the aerosol chamber of the Paul-Scherrer-Institute (Villigen, Switzerland) investigating artificial secondary organic aerosol. Collaboration with partners from Switzerland, UK, and USA; October/November 2005.
Investigation of cloud residuals and interstitial aerosol in ice clouds on the high-alpine research station Jungfraujoch, Switzerland. Collaboration with several working groups at MPI for Chemistry and partners from Leipzig/Germany and Switzerland; February/March 2006.
Characterization of the fine and ultrafine aerosol in the marine boundary layer of the southern Atlantic and Indian Ocean using on-line aerosol mass spectrometry. Collaboration with partners from France, UK, Italy, and Germany; January – March 2007.
In-situ measurements of the aerosol in the exhaust of municipal and hazardous waste incinerators before and after the exhaust cleaning devices. joint research project with a partner from France; July – October 2007.
Characterization of the aerosol at the marine/continental/urban interface and investigation of the atmospheric chemistry in the southern European winter. Cooperation with other departments at MPI for Chemistry and partners from Spain; November – December 2008.
Investigation of composition and temporal and spatial variability of the aerosol in and emitted from a megacity (Paris). Measurements in the emission plume for investigation of aging processes and its impact on the environment. In cooperation with partners from France, Switzerland, Russia, and Greece; July 2009 – February 2010.
Characterization of fugitive emissions from steelworks and its impact on the environment. EU project in collaboration with partners from UK, Spain, and Portugal; July 2009 – December 2012.
Chemical characterization of particulate emissions from exotic anthropogenic aerosol sources using on-line and off-line analysis techniques. April 2012 – February 2015.
Characterization of aerosols from biomass burning and investigation of the influence of biomass burning on local air quality in the Black Forest and the Alsace. EU-project in collaboration with partners from Germany, France, and Switzerland; January 2013 – May 2015.
Investigation of the urban aerosol in Frascati (province Rome, Italy) with special focus on advected Saharan dust. Cooperation with partners from Italy; October 2013 – June 2014.
Development and characterization of a Single Particle Laser Ablation Time-of-flight aerosol mass spectrometer. Since January 2003.
Characterization and further development of the Aerodyne Time-of-Flight Aerosol Mass Spectrometer. Since January 2004.
Design and construction of a mobile aerosol research laboratory for flexible and mobile measurements of aerosol concentrations and compositions. Since October 2006.