10.18453/rosdok_id00002304 Li, Fengxia Fengxia Li http://d-nb.info/gnd/1169065279 Universität Rostock 2018 540 Chemistry & allied sciences 2018 en http://purl.uni-rostock.de/rosdok/id00002304 urn:nbn:de:gbv:28-diss2018-0136-3 This thesis investigated the sources contributing to the organic carbon fraction of quasi-UFP (here PM0.36), itsseasonal variation and temporal-spatial variability. An in-situ derivatization thermal desorption gas chromatography time-of-flight mass spectrometry method was applied to PM0.36 for simultaneous quantification of primary andorganic markers. 5 sources including both primary and secondary sources were resolved by positive matrixfactorization (PMF) modeling based on measured organic species.