Abstract
In the densely populated Wuppertal-Düsseldorf area the atmospheric concentrations of CCl2F2 and CCl3F near ground level were measured by ECGC and GC-MS method. Special systems for sampling and calibrating were developed. As mean concentration averages over the time period from December 1976 to May 1977 a value of 650±356 pptv was determined for CCl2F2 (F12) and of 490±279 pptv for CCl3F (F 11).
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References
Bergert, K.-H. andBetz, V. (1974),Erfahrungen bei der quantitativen Analyse von flüchtigen Mikroverunreinigungen in Luft, Chromatographia7 (12), 681–687.
Cicerone, R. J., Stolarski, R. S. andWalters, S. (1974),Stratospheric ozone destruction by man-made chlorofluoromethanes, Science185, 1165–1167.
Council of Environmental Quality, Federal Council for Science and Technology (June 1975)Fluorocarbons and Environment, Report of Federal Force on Inadvertent Modification of the Stratosphere (IMOS).
Hoechst AG Frankfurt/M. (März 1976)Produktion und Emission von Fluorkohlenwasserstoffen, Ergebnis einer Umfrage bei 20 Herstellern.
Johnston, H. S. (1975),Pollution of the Stratosphere, Annu. Rev. Phys. Chem.26, 315–338.
Mc'Carthy, R. L. andJesson, J. P. (Aug. 1976),Atmospheric stability of fluoroalkanes — Implications for ozone depletion, 8th International Symposium on Fluorine Chemistry, Kyoto, Japan.
Molina, M. J. andRowland, F. S. (1974),Stratospheric sink for chlorofluoromethanes: chlorine atomcatalysed destruction of ozone, Nature249, 810–812.
Pack, D. H., Lovelock, J. E., Cotton, G. andCurthoys, C. (1977),Halocarbon behaviour from a long time series, Atm. Environ.11, 329–344.
Rasmussen, R. A. (1977), Communication to the International Symposium on the ‘Influence of the Biosphere upon the Atmosphere (ISIBA)’, July, 11–14, Mainz.
Robinson, E., Rasmussen, R. A., Krasnec, J., Pierotti, D. andJakubovic, M. (1977),Halocarbon measurements in the alaskan troposphere and lower stratosphere, Atm. Environment11, 215–223.
Rowland, F. S. andMolina, M. J. (1976),Estimated future atmospheric concentrations of CCl3F (fluorocarbon-11) for various hypothetical tropospheric removal rates, J. Phys. Chem.80, 2049–2056.
Sandalls, F. J. andHatton, D. B. (1977),Measurements of atmospheric concentrations of trichlorofluoromethane, dichlorofluoromethane and carbon tetrachloride by aircraft sampling over the British Isles, Atm. Environment11, 321–327.
Sze, N. D. andWu, M. F. (1976),Measurements of fluorocarbons 11 and 12 and model validation assessment, Atm. Environment10, 1117–1125.
Turco, R. P. andWhitten, R. C. (1975),Chlorofluoromethanes in the stratosphere and some possible consequences for ozone, Atm. Environ.9, 1045–1061.
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Becker, K.H., Ionescu, A. & Ionescu, M. Ground level measurements of atmospheric concentrations of CCl2F2 and CCl3F in the wuppertal-Düsseldorf region. PAGEOPH 116, 567–574 (1978). https://doi.org/10.1007/BF01636909
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DOI: https://doi.org/10.1007/BF01636909