Abstract
A method is described for the quantitative determination of anthropogenic and natural hydrocarbons which may contribute to the formation of particulate matter in forestal areas. The use of adsorption traps packed with Carbopack B adsorbent coupled with a GC-MS apparatus operating in Selected Ion Detection (SID) is proven to be suitable for the quantitative determination of the organic components present in the atmosphere at ppt level. The samples collected in a pine forest well correlate with the vapour analysis from tree foliage. The method is used to investigate how the diurnal concentration of monoterpenes and alkylbenzenes present in a forest changes with the atmospheric parameters and the O 3 concentration.
Published Version
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