TY  - CONF
AU  - Spindler, Christian
TI  - Charakterisierung Biogener Sekundärer Organischer Aerosole mit Statistischen Methoden
VL  - 63
SN  - 1866-1793
CY  - Jülich
PB  - Foschungszentrum Jülich GmbH Zentralbibliothek, Verlag
M1  - PreJuSER-10540
SN  - 978-3-89336-622-4
T2  - Schriften des Forschungszentrums Jülich : Energie & Umwelt / Energy & Environment
SP  - IV, 163 S.
PY  - 2010
N1  - Record converted from VDB: 12.11.2012
AB  - Atmospheric aerosols have important influence on the radiation balance of the Earth, on visibility and human health. Secondary organic aerosol is formed from gas-to-particle conversion of oxidized volatile organic compounds. A dominant fraction of the gases originates from plant emissions, making biogenic secondary organic aerosol (BSOA) an especially important constituent of the atmosphere. Knowing the chemical composition of BSOA particles is crucial for a thorough understanding of aerosol processes in the environment. In this work, the chemical composition of BSOA particles was measured with aerosol mass spectrometry and analyzed with statistical methods. The experimental part of the work comprises process studies of the formation and aging of biogenic aerosols in simulation chambers. Using a plant chamber, real tree emissions were used to produce particles in a way close to conditions in forest environments. In the outdoor chamber SAPHIR, OH-radicals were produced from the photooxidation of ozone under illumination with natural sunlight. Here, BSOA was produced from defined mixtures of mono- and sesquiterpenes that represent boreal forest emissions. A third kind of experiments was performed in the indoor chamber AIDA. Here, particles were produced from ozonolysis of single monoterpenes and aged by condensing OH-oxidation products [...]
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)7
UR  - https://juser.fz-juelich.de/record/10540
ER  -