Tetrachloroethylene as an indicator of low CI atom concentrations in the troposphere

Autor: Singh, H., Herlth, D., Kolyer, R., Salas, L., Bradshaw, J., Sandholm, S., Davis, D., Crawford, J., Kondo, Y., Koike, M., Talbot, R., Gregory, G., Sachse, G., Browell, E., Blake, D., Rowland, F., Newell, R., Merrill, J., Heikes, B., Liu, S., Crutzen, P., Kanakidou, M., Thakur, A, Chen, Y
Přispěvatelé: NASA Ames Research Center (ARC), San Jose State University [San Jose] (SJSU), Georgia State University, University System of Georgia (USG), Nagoya University, University of New Hampshire (UNH), NASA Langley Research Center [Hampton] (LaRC), University of California [Irvine] (UC Irvine), University of California (UC), Massachusetts Institute of Technology (MIT), University of Rhode Island (URI), National Oceanic and Atmospheric Administration (NOAA), Max Planck Institute for Chemistry (MPIC), Max-Planck-Gesellschaft, Centre des Faibles Radioactivités, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 1996
Předmět:
Zdroj: Journal of Geophysical Research: Atmospheres
Journal of Geophysical Research: Atmospheres, 1996, 101 (D1), pp.1793-1808. ⟨10.1029/95JD01029⟩
ISSN: 2169-897X
2169-8996
DOI: 10.1029/95JD01029⟩
Popis: International audience; Tetrachloroethylene (C2C14), a largely man-made chemical pollutant, is known to react with C1 atoms at a rate that is some 300 times faster than with OH radicals (kc1/koH = 365 at 275 K). Analysis of C2C14 data, with the help of a global 2-D model and in conjunction with the OH field derived from CH3CC13 observations, has been used to provide a sensitive means for evaluating C1 atom abundance in the troposphere. In the "mean case" scenario, that employs best available measurements, emissions and kinetic parameters, it is found that OH oxidation is adequate to balance the C2C14 budget and significant removal by C1 is not indicated (CI _
Databáze: OpenAIRE
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