[AAS07-P09] Peculiarities of the vertical and geographical distribution of particulate organic matter over West Siberia
Keywords:Aerosol, Atmospere, Chemical, Organic matter
Total organic matter varied from 244.56 ng m3 in aerosol samples collected in the ASL to 0.08 ng m3 in the free troposphere (FT) over the Kara Sea. Significant differences were also found in the geographical distribution of POM due to different volatile organic compounds emitted by vegetation in specific regions. Differences between concentrations of POM sampled in the free troposphere over the continent and ocean can exceed an order of magnitude. Average concentration of organic compounds in the ASL is close to 30 ng m3 and it decreases exponentially with height down to 14 ng m3 at the top of the atmospheric boundary layer and 5 ng m3 in the FT.