Observations Of Oxidation Products Above A Forest Imply Biogenic Emissions Of Very Reactive Compounds

  • Sites: US-Blo
  • Publication Type: JOUR
  • Authors: Holzinger, R.; Lee, A.; Paw, K. T.; Goldstein, A. H.

  • Vertical gradients of mixing ratios of volatile organic compounds have been measured in a Ponderosa pine forest in Central California (38.90° N, 120.63° W, 1315m). These measurements reveal large quantities of previously unreported oxidation products of short lived biogenic precursors. The emission of biogenic precursors must be in the range of 13-66µmol m-2h-1 to produce the observed oxidation products. That is 6-30 times the emissions of total monoterpenes observed above the forest canopy on a molar basis. These reactive precursors constitute a large fraction of biogenic emissions at this site, and are not included in current emission inventories. When oxidized by ozone they should efficiently produce secondary aerosol and hydroxyl radicals.


  • Journal: Atmospheric Chemistry And Physics
  • Funding Agency: —
  • Citation Information:
  • Volume: 5
  • No: 1
  • Pages: 67-75
  • Publication Year: 2005
  • DOI: 10.5194/acp-5-67-2005