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@ARTICLE{Mentel:4694,
      author       = {Mentel, T. F. and Wildt, J. and Kiendler-Scharr, A. and
                      Kleist, E. and Tillmann, R. and Dal Maso, M. and Fisseha, R.
                      and Hohaus, Th. and Spahn, H. and Uerlings, R. and Wegener,
                      R. and Griffiths, P.T. and Dinar, E. and Rudich, Y. and
                      Wahner, A.},
      title        = {{P}hotochemical production of aerosols from real plant
                      emissions},
      journal      = {Atmospheric chemistry and physics},
      volume       = {9},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {PreJuSER-4694},
      pages        = {4387 - 4406},
      year         = {2009},
      note         = {We gratefully acknowledge the support by the European
                      Commission (IP-EUCAARI, Contract No. 036833-2, and
                      NoE-ACCENT) and by the ESF (INTROP). YR acknowledges support
                      by the Helen and Martin Kimmel Award for Innovative
                      Investigation and the Israel Science Foundation (grants
                      196/08).},
      abstract     = {Emission of biogenic volatile organic compounds (VOC) which
                      on oxidation form secondary organic aerosols (SOA) can
                      couple the vegetation with the atmosphere and climate.
                      Particle formation from tree emissions was investigated in a
                      new setup: a plant chamber coupled to a reaction chamber for
                      oxidizing the plant emissions and for forming SOA. Emissions
                      from the boreal tree species birch, pine, and spruce were
                      studied. In addition, alpha-pinene was used as reference
                      compound. Under the employed experimental conditions, OH
                      radicals were essential for inducing new particle formation,
                      although O-3 (< 80 ppb) was always present and a fraction of
                      the monoterpenes and the sesquiterpenes reacted with ozone
                      before OH was generated. Formation rates of 3 nm particles
                      were linearly related to the VOC carbon mixing ratios, as
                      were the maximum observed volume and the condensational
                      growth rates. For all trees, the threshold of new particle
                      formation was lower than for alpha-pinene. It was lowest for
                      birch which emitted the largest fraction of oxygenated VOC
                      (OVOC), suggesting that OVOC may play a role in the
                      nucleation process. Incremental mass yields were $5\%$ for
                      pine, spruce and alpha-pinene, and $10\%$ for birch.
                      alpha-Pinene was a good model compound to describe the yield
                      and the growth of SOA particles from coniferous emissions.
                      The mass fractional yields agreed well with observations for
                      boreal forests. Despite the somewhat enhanced VOC and OH
                      concentrations our results may be up-scaled to eco-system
                      level. Using the mass fractional yields observed for the
                      tree emissions and weighting them with the abundance of the
                      respective trees in boreal forests SOA mass concentration
                      calculations agree within $6\%$ with field observations. For
                      a future VOC increase of $50\%$ we predict a particle mass
                      increase due to SOA of $19\%$ assuming today's mass
                      contribution of pre-existing aerosol and oxidant levels.},
      keywords     = {J (WoSType)},
      cin          = {ICG-2 / ICG-3 / JARA-HPC},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB791 / I:(DE-Juel1)ICG-3-20090406 /
                      $I:(DE-82)080012_20140620$},
      pnm          = {Atmosphäre und Klima / Terrestrische Umwelt},
      pid          = {G:(DE-Juel1)FUEK406 / G:(DE-Juel1)FUEK407},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000267984400013},
      url          = {https://juser.fz-juelich.de/record/4694},
}