Importance of secondary sources in the atmospheric budgets of formic and acetic acids

  title={Importance of secondary sources in the atmospheric budgets of formic and acetic acids},
  author={Fabien Paulot and Debra Wunch and John D Crounse and Geoff C Toon and Dylan B. Millet and Peter F DeCarlo and C... and Vigouroux and Nicholas M. Deutscher and Gonzalo Gonz{\'a}lez Abad and Justus Notholt and Thorsten Warneke and J. W. and Hannigan and Carsten Warneke and Joost A. de Gouw and Edward J. Dunlea and Martine De Mazi{\`e}re and D. W. T. Gri and th and Paul Bernath and J. L. Jimenez and Paul O. Wennberg},
We present a detailed budget of formic and acetic acids, two of the most abundant trace gases in the atmosphere. Our bottom-up estimate of the global source of formic and acetic acids are ∼1200 and ∼1400 Gmol/yr, dominated by photochemical oxidation of biogenic volatile organic compounds, in particular isoprene. Their sinks are dominated by wet and dry deposition. We use the GEOS-Chem chemical transport model to evaluate this budget against an extensive suite of measurements from ground, ship… CONTINUE READING


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