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@ARTICLE{Zhao:280944,
      author       = {Zhao, Defeng and Buchholz, A. and Kortner, B. and Schlag,
                      P. and Rubach, F. and Kiendler-Scharr, A. and Tillmann, R.
                      and Wahner, A. and Flores, J. M. and Rudich, Y. and Watne,
                      Å. K. and Hallquist, M. and Wildt, J. and Mentel, Thomas
                      F.},
      title        = {{S}ize-dependent hygroscopicity parameter ( κ ) and
                      chemical composition of secondary organic cloud condensation
                      nuclei},
      journal      = {Geophysical research letters},
      volume       = {42},
      number       = {24},
      issn         = {0094-8276},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2016-00655},
      pages        = {10,920 - 10,928},
      year         = {2015},
      note         = {Autor: Birte Kortner bitte als Mitarbeiter des IEK-8
                      listen},
      abstract     = {Secondary organic aerosol components (SOA) contribute
                      significantly to the activation of cloud condensation nuclei
                      (CCN) in the atmosphere. The CCN activity of internally
                      mixed submicron SOA particles is often parameterized
                      assuming a size-independent single-hygroscopicity parameter
                      κ. In the experiments done in a large atmospheric reactor
                      (SAPHIR, Simulation of Atmospheric PHotochemistry In a large
                      Reaction chamber, Jülich), we consistently observed
                      size-dependent κ and particle composition for SOA from
                      different precursors in the size range of
                      50 nm–200 nm. Smaller particles had higher κ and a
                      higher degree of oxidation, although all particles were
                      formed from the same reaction mixture. Since decreasing
                      volatility and increasing hygroscopicity often covary with
                      the degree of oxidation, the size dependence of composition
                      and hence of CCN activity can be understood by enrichment of
                      higher oxygenated, low-volatility hygroscopic compounds in
                      smaller particles. Neglecting the size dependence of κ can
                      lead to significant bias in the prediction of the activated
                      fraction of particles during cloud formation.},
      cin          = {IEK-8 / IBG-2},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-8-20101013 / I:(DE-Juel1)IBG-2-20101118},
      pnm          = {243 - Tropospheric trace substances and their
                      transformation processes (POF3-243)},
      pid          = {G:(DE-HGF)POF3-243},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000368939700027},
      doi          = {10.1002/2015GL066497},
      url          = {https://juser.fz-juelich.de/record/280944},
}