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Journal of Radioanalytical and Nuclear Chemistry

, Volume 263, Issue 2, pp 399–411 | Cite as

Long range transport of biomass aerosol to Greenland: Multi-spectroscopic investigation of particles deposited in the snow

  • L. A. Currie
  • J. D. Kessler
  • R. A. Fletcher
  • J. E. Dibb
Article

Summary

Results are given from the NIST component of a pilot (“winter-over”) study of seasonal patterns of natural and anthropogenic species in air and snow transported to Summit, Greenland. Central to this research is the quantitative apportionment of fossil and biomass particulate carbon, based on advanced (micromolar) 14C accelerator mass spectrometry (AMS) applied to remote snow samples containing as little as 9 µg C/kg. The measurements were made practicable through stringent attention to the nature and sources of the isotopic-chemical blank, resulting in a blank reduction from »5 µg C to <0.5 µg C. An important result of this work is the first evidence of a seasonal pattern in biomass-C particles in Greenland snow. Although 14C AMS data serve to resolve fossil and biomass carbon quantitatively, a deeper understanding of the aerosol sources and character demands a multidisciplinary approach. This is illustrated with “multi-spectrometric” macro- and micro-analytical data for two cases involving substantial incursions of biomass aerosol to the Summit, Greenland snow.

Keywords

Accelerator Mass Spectrometry Accelerator Mass Spectrometry Carbonaceous Aerosol Carbonaceous Particle Range Transport 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag/Akad&#233;miai Kiad&#243; 2005

Authors and Affiliations

  • L. A. Currie
    • 1
  • J. D. Kessler
    • 2
  • R. A. Fletcher
    • 3
  • J. E. Dibb
    • 4
  1. 1.Chemical Science and Technology Laboratory, National Institute of Standards and Technology
  2. 2.Chemical Science and Technology Laboratory, National Institute of Standards and Technology
  3. 3.Chemical Science and Technology Laboratory, National Institute of Standards and Technology
  4. 4.Climate Change Research Center, University of New Hampshire

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