HR: 0800h
AN: OS51B-0566    [Abstracts]
TI: Generation of Volatile Organic Compounds from Dissolved Organic Matter in far North Atlantic Surface Ocean Waters.
AU: * Hudson, E D
EM: edward.hudson@mail.mcgill.ca
AF: Departments of Chemistry and Atmospheric and Oceanic Sciences, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 2K6 Canada
AU: Ariya, P A
EM: parisa.ariya@mcgill.ca
AF: Departments of Chemistry and Atmospheric and Oceanic Sciences, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 2K6 Canada
AB: The photochemical degradation of dissolved organic matter (DOM) in surface ocean waters is thought to be a source of volatile organic compounds (VOC) (including non-methane hydrocarbons and low MW carbonyl compounds) to the remote marine troposphere. We report on the characterization of DOM sampled at over 30 sites in the far North Atlantic (Greenland and Norwegian seas, Fram strait) during the summer of 2004, and on experiments to identify factors responsible for the photochemical generation of VOCs in these samples. The results will be discussed in the context of VOC profiles of whole air samples taken to match the seawater samples in time and space.
DE: 0315 Biosphere/atmosphere interactions (0426, 1610)
DE: 0317 Chemical kinetic and photochemical properties
DE: 4850 Marine organic chemistry (0470, 1050)
DE: 4852 Photochemistry
SC: Ocean Sciences [OS]
MN: Fall Meeting 2005