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タグ「134Cs」

Sedimentation rates measurements in former channels of the upper Rhône river using Chernobyl 137Cs and 134Cs as tracers.

ecology・environment
  • Title: Sedimentation rates measurements in former channels of the upper Rhône river using Chernobyl 137Cs and 134Cs as tracers.

Author: Rostan, J C / Juget, J / Brun, A M

Reference: The Science of the total environment, 193 (3), p.251-262, Jan 1997

doi:

Keywords: Fluvial hydrosystem; Radionuclide; Sedimentation rate; Sediment organic carbon

Abstract: Former river channels are aquatic ecosystems with a different geomorphology generated by fluvial dynamics more or less linked to the main channel. They present different ecological successions to become terrestrial ecosystems and are thus supposed to have different sedimentation rates. The aim of this paper is to assess this sedimentation rate using radioactive tracer methodology commonly used in lake studies.

URL: http://www.sciencedirect.com/science/article/pii/S004896979605348X

Amount of 137Cs and 134Cs radionuclides in the Black Sea produced by the Chernobyl accident

ecology・environment
  • Title: Amount of 137Cs and 134Cs radionuclides in the Black Sea produced by the Chernobyl accident

Author: Eremeev, V.N. / Ivanov, L.M. / Kirwan, A.D., Jr / Margolina, T.M.

Reference: Journal of Environmental Radioactivity, 27 (1), p.49-63, Jan 1995

doi: 10.1016/0265-931X(94)00032-R

Keywords:

Abstract: Revised estimates of the amount of the nuclides 137Cs and 134Cs in the Black Sea resulting from the Chernobyl accident are reported. These results are at some variance with those reported by Chudinovskikh and Eremeev (Practical Ecology of Black Sea Areas, Naukova dumka, Kiev, 1990, pp. 46–56) and Nikitin et al. (Atomic Energy, 65 (1988) 134-7). The analysis here employs a spectral method whereas these other studies utilized less accurate methods. The study illustrates that the choice of numerical techniques for assimilating in-situ data into a model is important.

URL: http://www.sciencedirect.com/science/article/pii/0265931X9400032R

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