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Article
Recent Increases in Atmospheric Concentrations of Bi, U, Cs, S and Ca from a 350-Year Mount Everest Ice Core Record
Journal of Geophysical Research-Atmospheres
  • Susan D. Kaspari
  • Paul Andrew Mayewski, University of Maine - Main
  • Michael Handley
  • Erich Osterberg
  • Shichang Kang
  • Sharon B. Sneed
  • Shugui Hou
  • Dahe Qin
Document Type
Article
Rights and Access Note
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. In addition, no permission is required from the rights-holder(s) for educational uses. For other uses, you need to obtain permission from the rights-holder(s).
Publication Date
2-18-2009
Publication Number
D04302
Disciplines
Abstract/ Summary

High-resolution major and trace elements (Sr, Cs, Ba, La, Ce, Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, Lu, Bi, U, Tl, Al, S, Ca, Ti, V, Cr, Mn, Fe, and Co) quantified in a Mount Everest ice core ( 6518 m above sea level) spanning the period 1650-2002 AD provides the first Asian record of trace element concentrations from the pre-industrial era, and the first continuous high-resolution Asian record from which natural baseline concentrations and subsequent changes due to anthropogenic activities can be examined. Modern concentrations of most elements remain within the pre-industrial range; however, Bi, U, and Cs concentrations and their enrichment factors (EF) have increased since the similar to 1950s, and S and Ca concentrations and their EFs have increased since the late 1980s. A comparison of the Bi, U, Cs, S, and Ca data with other ice core records and production data indicates that the increase in atmospheric concentrations of trace elements is widespread, but that enrichment varies regionally. Likely sources for the recent enrichment of these elements include mining, metal smelting, oil and coal combustion, and end uses for Bi, and mining and refinement for U and Cs. The source of the synchronous enrichment of Ca and S is less certain, but may be related to land use and environmental change.

Citation/Publisher Attribution
Kaspari, S, Mayewski, PA, Handley, M, Osterberg, E, Kang, SC, Sneed, S, Hou, SG, et al., 2009, Recent Increases in Atmospheric Concentrations of Bi, U, Cs, S and Ca from a 350-Year Mount Everest Ice Core Record: Journal of Geophysical Research-Atmospheres, v. 114, D04302. To view the published open abstract, go to http://dx.doi.org and enter the DOI.
Publisher Statement
© Copyright 2009 American Geophysical Union
DOI
10.1029/2008JD011088
Version
publisher's version of the published document
Citation Information
Susan D. Kaspari, Paul Andrew Mayewski, Michael Handley, Erich Osterberg, et al.. "Recent Increases in Atmospheric Concentrations of Bi, U, Cs, S and Ca from a 350-Year Mount Everest Ice Core Record" Journal of Geophysical Research-Atmospheres Vol. 114 (2009)
Available at: http://works.bepress.com/paul_mayewski/38/