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@ARTICLE{Grossmann:33384,
      author       = {Grossmann, D. and Moortgat, G. K. and Kibler, M. and
                      Schlomski, S. and Bächmann, K. and Alicke, B. and Geyer, A.
                      and Platt, U. and Hammer, M. and Vogel, B. and Mihelcic, D.
                      and Hofzumahaus, A. and Holland, F. and Volz-Thomas, A.},
      title        = {{H}ydrogen peroxide, organic peroxides, carbonyl compounds,
                      and organic acids measured at {P}abstthum during {BERLIOZ}},
      journal      = {Journal of Geophysical Research},
      volume       = {108},
      issn         = {0148-0227},
      address      = {Washington, DC},
      publisher    = {Union},
      reportid     = {PreJuSER-33384},
      pages        = {D4},
      year         = {2003},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Gas-phase H2O2, organic peroxides, carbonyl compounds, and
                      carboxylic acids were measured from mid-July to early August
                      1998 during the Berlin ozone (BERLIOZ) campaign in
                      Pabstthum, Germany. The rural site, located 50 km northwest
                      from Berlin, was chosen to measure the pollutants downwind
                      during a summer smog episode. The hydroperoxides showed
                      pronounced diurnal variations with peak mixing ratios in the
                      early afternoon. The maximum mixing ratios were 1.4 ppbv
                      (H2O2), 0.64 ppbv ( methylhydroperoxide), and 0.22 ppbv
                      (hydroxymethyl-hydroperoxide). H2O2 was formed through
                      photochemical activity, but originated also from vertical
                      transport from air residing above the local inversion layer
                      in the morning hours. Sometimes a second maximum was
                      observed in the late afternoon-evening: This H2O2 might be
                      formed from ozonolysis of biogenic alkenes. Ratios of
                      H2O2/HNO3 were used as indicators for the determination of
                      NOx-sensitive versus volatile organic compound
                      (VOC)-sensitive regimes for photochemical production of
                      ozone. Diurnal profiles were measured for alkanals
                      (C-2-C-10), showing maximum mixing ratios decreased from C-2
                      (0.6 ppbv) to C-5 (0.1 ppbv) alkanals, which originate
                      primarily from anthropogenic hydrocarbon degradation
                      processes. However, higher C-6, C-9, and C-10 alkanals show
                      strong fluctuations (0.25, 0.17, and 0.13 ppbv,
                      respectively), showing evidence of biogenic emissions. Both
                      primary unsaturated carbonyl ( methyl vinyl ketone,
                      methacrolein) and secondary oxidation products of isoprene (
                      hydroxyacetone and glycolaldehyde, up to 0.16 and 0.20 ppbv,
                      respectively) showed excellent correlation. Diurnal profiles
                      of glyoxal, methylglyoxal, biacetyl, benzaldehyde, and
                      pinonaldehyde were also obtained. Formaldehyde was measured
                      continuously by long-path DOAS and by an instrument based on
                      the "Hantzsch" reaction; however, mixing ratios measured by
                      DOAS (maximum 7.7 ppbv) were systematically larger by a
                      factor of 1.3 on average, but by a factor of 1.7 during high
                      photochemical activity. Homologous series of monocarboxylic
                      acids were determined: Formic and acetic acid varied between
                      0.6 and 3.0 ppbv. The mixing ratio of the other dropped from
                      0.1 to 0.2 ppbv for C-3 to typical 0.01 to 0.03 ppbv for
                      C-6, and from 0.01 to 0.002 ppbv for C-7 to C-9
                      monocarboxylic acids.},
      keywords     = {J (WoSType)},
      cin          = {ICG-II},
      ddc          = {550},
      cid          = {I:(DE-Juel1)VDB48},
      pnm          = {Chemie und Dynamik der Geo-Biosphäre},
      pid          = {G:(DE-Juel1)FUEK257},
      shelfmark    = {Meteorology $\&$ Atmospheric Sciences},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000182897800002},
      doi          = {10.1029/2001JD001096},
      url          = {https://juser.fz-juelich.de/record/33384},
}