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@ARTICLE{Dinar:52885,
      author       = {Dinar, E. and Taraniuk, I. and Graber, E. R. and Anttila,
                      T. and Mentel, T. F. and Rudich, Y.},
      title        = {{H}ygroscopic growth of atmospheric and model humic-like
                      substances},
      journal      = {Journal of Geophysical Research},
      volume       = {112},
      issn         = {0148-0227},
      address      = {Washington, DC},
      publisher    = {Union},
      reportid     = {PreJuSER-52885},
      pages        = {D05211},
      year         = {2007},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The hygroscopic growth (HG) of humic-like substances
                      (HULIS) extracted from smoke and pollution aerosol particles
                      and of Suwannee River fulvic acid (SRFA, bulk and fractions
                      of different molecular weight) was measured by humidity
                      tandem differential mobility analyzer (H-TDMA). By
                      characterizing physical and chemical parameters such as
                      molecular weight, elemental composition, and surface
                      tension, we test the effect of these parameters on particle
                      interactions with water vapor. For molecular
                      weight-fractionated SRFA fractions, the growth factor at
                      $90\%$ relative humidity was generally inversely
                      proportional to the molecular weight. HULIS extracts from
                      ambient particles are more hygroscopic than all the SRFA
                      fractions and exhibit different hygroscopic properties
                      depending on their origin and residence time in the
                      atmosphere. The results point out some dissimilarities
                      between SRFA and aerosol- derived HULIS. The cloud
                      condensation nuclei (CCN) behavior of the studied materials
                      was predicted on the basis of hygroscopic growth using a
                      recently introduced approach of Kreidenweis et al. (2005)
                      and compared to CCN activity measurements on the same
                      samples (Dinar et al., 2006). It is found that the
                      computational approach (Kreidenweis et al., 2005) works
                      reasonably well for SRFA fractions but is limited in use for
                      the HULIS extracts from aerosol particles. The difficulties
                      arise from uncertainties associated with HG measurements at
                      high relative humidity, which leads to large errors in the
                      predicted CCN activity.},
      keywords     = {J (WoSType)},
      cin          = {ICG-2},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB791},
      pnm          = {Atmosphäre und Klima},
      pid          = {G:(DE-Juel1)FUEK406},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000245017000002},
      doi          = {10.1029/2006JD007442},
      url          = {https://juser.fz-juelich.de/record/52885},
}