Concentrations and sources of carbonaceous aerosol in the atmosphere of Summit, Greenland
作者： Erika von Schneidemesser , James J. Schauer , Gayle S.W. Hagler , Michael H. Bergin
DOI: 10.1016/J.ATMOSENV.2009.05.043
关键词: Atmosphere 、 Troposphere 、 Groenlandia 、 Environmental science 、 Environmental chemistry 、 Detritus 、 Hydrology 、 Total organic carbon 、 TRACER 、 Aerosol 、 Air pollution
摘要: High-volume PM2.5 samples were collected at Summit, Greenland for approximately six months from late May through December of 2006. Filters composited and analyzed source tracer compounds. The individual organic compounds measured Summit are orders magnitude smaller than concentrations other sites, including locations representative remote oceanic, urban continental aerosol. tracers used to quantify the contribution biomass burning (0.6–0.9 ng C m �3 ), vegetative detritus (0.3–0.9 fossil fuel combustion (0.1– 0.8 ) sources, 4% OC total, atmospheric carbon location Greenland. unapportioned (96%) during early summer period correlates well with fraction water soluble carbon, indicating secondary aerosol as a large supported by active photochemistry occurring Summit. To author’s knowledge, this paper represents first apportionment results polar free troposphere.
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