Biogenic volatile organic compound emissions (BVOCs) I. Identifications from three continental sites in the US

Vegetation composition and biomass were surveyed for three specific sites i n Atlanta, GA; near Rhinelander, WI; and near Hayden, CO. At each research site emissions of biogenic volatile organic compounds (BVOCs) from the domi nant vegetation species were sampled by enclosing branches in bag enclosure systems and sampling the equilibrium head space onto multi-stage solid ads orbent cartridges. Analysis was performed using a thermal desorption techni que with gas chromatography (GC) separation and mass spectrometry (MS) dete ction. Identification of BVOCs covering the GC retention index range (stati onary phase DB-1) from approximately 400 to 1400 was achieved (volatilities C-4 - C-14). (C) 1999 Elsevier Science Ltd. All rights reserved.