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000916580 005__ 20240712101048.0
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000916580 037__ $$aFZJ-2022-06356
000916580 1001_ $$0P:(DE-Juel1)176583$$aLiu, Lu$$b0$$eCorresponding author$$ufzj
000916580 245__ $$aSeasonal Comparison of the Chemical Composition and Source Apportionment of Aerosols during the Year-Long JULIAC Campaign$$f - 2023-02-21
000916580 260__ $$aJülich$$bForschungszentrum Jülich GmbH Zentralbibliothek Verlag$$c2022
000916580 300__ $$aVIII, 189
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000916580 4900_ $$aSchriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment$$v595
000916580 502__ $$aDissertation, Univ. Wuppertal, 2022$$bDissertation$$cUniv. Wuppertal$$d2022
000916580 520__ $$aAtmospheric aerosols harm environmental air quality, atmospheric visibility, and play a critical role in climate-ecology interaction. Among aerosol compounds, organic aerosols (OA) contribute to 20 to 90% mass of total submicron particles, but their seasonally and regionally variableemissions and evolution processes are still unclear. Therefore, a year-long JULIAC (Jülich Atmospheric Chemistry Project) campaign has been conducted from Jan. 2019 to Nov. 2019 at the Forschungszentrum Jülich, Germany to better understand the seasonal variation of sourcescontributions and atmospheric evolutions of OA in this semi-rural site. During the JULIAC campaign, the submicron aerosol species concentration was continuously measured by a highresolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) for one month of each season.For OA seasonal source apportionment, source factor analysis by positive matrix factorization (PMF) was utilized to resolve OA components into several source spectra. Moreover, concurrently measured comprehensive tracer gases (like volatile organic compounds (VOCs), radicals, NOx,O3), the meteorological condition (like temperature, wind direction, wind speed), and the modeled air parcel back trajectories effectively support OA sources resolving and determination.
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