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The atmospheric aerosol precursor gas sulfuric acid: mass spectrometric measurements in the atmospheric boundary layer in Finland and Germany

MPG-Autoren
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Fiedler,  Verena
Frank Arnold - Atmospheric Trace Gases and Ions, Research Groups, MPI for Nuclear Physics, Max Planck Society;

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2004-017.pdf
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Zitation

Fiedler, V. (2004). The atmospheric aerosol precursor gas sulfuric acid: mass spectrometric measurements in the atmospheric boundary layer in Finland and Germany. Diploma Thesis, Diplomarbeit, Ruprecht-Karls-Universität, Heidelberg.


Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0011-8B53-A
Zusammenfassung
Measurements of gaseous sulphuric acid and aerosol particle data have been carried out in the atmospheric boundary layer in a relatively unpolluted region (Hyytiälä, Finland) and in a relatively polluted region (Heidelberg, Germany) by the MPI-K during the European project QUEST (Quanti cation of Aerosol Nucleation in the European Boundary Layer). Sulphuric acid has been measured via chemical ionization mass spectrometry (CIMS). The method, used in Heidelberg, and the measured sulphuric acid concentrations will be discussed in detail in this work. Aerosol particle data have been obtained using a di erential mobility particle sizer (DMPS). From the measurements various quantities like growth, nucleation and condensable vapor source rates have been calculated. Moreover, the percentage contribution of sulphuric acid to particle formation and growth has been determined and the correlation of sulphuric acid to small particle formation has been investigated. Finally the influence of air mass trajectories has been examined.