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    • Radiocarbon, Volume 28, Number 2A (1986)
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    • Radiocarbon, Volume 28 (1986)
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    Urban Atmospheric 14CO and 14CH4 Measurements by Accelerator Mass Spectrometry

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    Author
    Klouda, G. A.
    Currie, L. A.
    Donahue, D. J.
    Jull, A. J. T.
    Naylor, M. H.
    Issue Date
    1986-01-01
    Keywords
    Nevada
    pollution
    mass spectra
    spectra
    human activity
    C 14 C 13
    environmental geology
    Central Valley
    Las Vegas Nevada
    atmosphere
    United States
    carbon
    isotopes
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    Citation
    Klouda, G. A., Currie, L. A., Donahue, D. J., Jull, A. J. T., & Naylor, M. H. (1986). Urban atmospheric 14CO and 14CH4 measurements by accelerator mass spectrometry. Radiocarbon, 28(2A), 625-633.
    Publisher
    American Journal of Science
    Journal
    Radiocarbon
    Description
    From the 12th International Radiocarbon Conference held in Trondheim, June 24-28, 1985.
    URI
    http://hdl.handle.net/10150/652874
    DOI
    10.1017/S0033822200007815
    Additional Links
    http://radiocarbon.webhost.uits.arizona.edu/
    Abstract
    Atmospheric gas samples (0.1 m3) were collected at ground level during January/February 1984 in Las Vegas, Nevada for 14C/13C accelerator mass spectrometry and total abundance measurements of CO and CH4. During winter months in this locale, CO concentrations can occur at 10 to 100 times background, occasionally exceeding the National Ambient Air Quality Standard (NAAQS). Methane concentrations show a slight enhancement (-24%) above the background (non-urban troposphere) level. A comparison of CO and CH4 concentrations shows a good linear correlation which may indicate a common source. Preliminary 14C/13C results of the two species suggest that fossil emissions are the predominant source of excess CO and CH4 in the samples taken. Estimates of anthropogemc CO and CH4 are important for source apportionment of combustion emissions. In addition, this information is valuable for understanding the global CO and CH4 cycles and, therefore, human impact on climate and the stratospheric ozone layer.
    Type
    Proceedings
    text
    Language
    en
    ISSN
    0033-8222
    ae974a485f413a2113503eed53cd6c53
    10.1017/S0033822200007815
    Scopus Count
    Collections
    Radiocarbon, Volume 28, Number 2A (1986)

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