Concentrations and sources of carbonaceous aerosol in the atmosphere of Summit,Greenland |
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| Authors: | Erika von Schneidemesser James J Schauer Gayle SW Hagler Michael H Bergin |
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| Institution: | 1. Environmental Chemistry and Technology Program, University of Wisconsin–Madison, Madison, WI, 53706, USA;2. School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA;1. Univerisité Grenoble-Alpes, CNRS, Institut des Geosciences pour l’Environnement (IGE), Grenoble, France;2. Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, CH-5232, Switzerland;3. Leibniz Institute for Tropospheric Research (TROPOS), Permoserstrasse 15, 04318, Leipzig, Germany;4. Atmospheric Science Unit, Department of Environmental Science and Analytical Chemistry (ACES), Stockholm University, Svante Arrhenius väg 8, SE-11418, Stockholm, Sweden;5. NILU-Norwegian Institute for Air Research, Kjeller, Norway;6. Environmental Chemistry Processes Laboratory, Dept. of Chemistry, University of Crete, 71003, Heraklion Crete, Greece;7. National Centre for Atmospheric Science, School of Geography, Earth and Environmental Sciences, University of Birmingham, B15 2TT, UK;8. Department of Environmental Sciences, Center of Excellence in Environmental Studies, King Abdulaziz University, PO Box 80203, Jeddah, 21589, Saudi Arabia;9. European Commission, Joint Research Centre (JRC), Directorate for Energy, Transport and Climate, Air and Climate Unit, Via E. Fermi 2749, I-21027 Ispra (VA), Italy;10. Institute of Environmental Assessment and Water Research (IDAEA-CSIC), c/ Jordi-Girona 18-26, ES08034, Barcelona, Spain;11. Laboratoire de Météorologie Physique, UMR 6016, CNRS/University of Clermont-Ferrand, Clermont-Ferrand, France;12. Division of Nuclear Physics, Department of Physics, Lund University, Lund, Sweden;13. Division of Atmospheric Science, Department of Physics, University of Helsinki, P.O. Box 64, FIN-00014, Helsinki, Finland;1. Agricultural University of Iceland, Hvanneyri, Borgarnes IS 311, Iceland;2. University of Iceland, Department of Physics, Reykjavík, Iceland;3. Icelandic Meteorological Office, Bústaðavegi 9, Reykjavík IS 150, Iceland;4. Bergen School of Meteorology, Geophysical Institute, University of Bergen, 5007, Norway;1. NOAA Earth Science Research Laboratory, Chemical Sciences Division, 325 Broadway, R/CSD6 Boulder, CO, USA;2. Cooperative Institute for Environmental Research, University of Colorado, Boulder, CO, USA;3. Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan;4. Observation Based Research, Met Office, Fitzroy Road, Exeter, UK;1. Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, 100101, Beijing, China;2. CAS Center for Excellence in Tibetan Plateau Earth Science, 100101, Beijing, China;3. Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China |
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| Abstract: | High-volume PM2.5 samples were collected at Summit, Greenland for approximately six months from late May through December of 2006. Filters were composited and analyzed for source tracer compounds. The individual organic compounds measured at Summit are orders of magnitude smaller than concentrations measured at other sites, including locations representative of remote oceanic, and remote and urban continental aerosol. The measured tracers were used to quantify the contribution of biomass burning (0.6–0.9 ng C m?3), vegetative detritus (0.3–0.9 ng C m?3), and fossil fuel combustion (0.1–0.8 ng C m?3) sources, 4% of OC total, to atmospheric organic carbon concentrations at the remote location of Summit, Greenland. The unapportioned organic carbon (96%) during the early summer period correlates well with the fraction of water soluble organic carbon, indicating secondary organic aerosol as a large source of organic carbon, supported by the active photochemistry occurring at Summit. To the author's knowledge, this paper represents the first source apportionment results for the polar free troposphere. |
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