Vertical Distribution of Cs-137 in Cultivated and Undisturbed Areas
АуториNenadović, Snežana S.
Đorđević, Aleksandar R.
Dragicevic, Slavoljub S.
Ljesevic, Milutin A.
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This paper introduces the distribution background and unique characteristics of Cs-137 in cultivated and undisturbed areas. The samples were taken from three measuring points of the depth of 1 m. We examined all visible horizons and determined their classifications. There were four horizons in one profile. All four horizons had a different zone thickness. Cs-137 is an artificial radionuclide that has been produced primarily as a result of atmospheric thermonuclear weapon tests since the 1950. Also, the great amount of Cs-137 (similar to 85 PBq) was released in the atmosphere during the Chernobyl accident. So, Cs-137 has been globally distributed, with fallout rates generally related to latitude and precipitation depth. The movement of Cs-137 in soil is primarily controlled by soil erosion processes, such as processes caused by water, wind, and tillage. Thus, Cs-137 is a valuable tracer to study soil erosion. The specific activity of Cs-137 in soil and sediment samples was determined by... using the gamma-spectrometric method.
Кључне речи:Cs-137 / erosion / soil / gamma-spectrometric method
Извор:Nuclear technology and radiation protection, 2010, 25, 1, 30-36
- Serbian Ministry of Science and Technological Development [142016, 141001]
ISSN: 1451-3994 (print)