Vertical Distribution of Cs-137 in Cultivated and Undisturbed Areas
AuthorsNenadović, Snežana S.
Đorđević, Aleksandar R.
Dragicevic, Slavoljub S.
Ljesevic, Milutin A.
MetadataShow full item record
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.
Keywords:Cs-137 / erosion / soil / gamma-spectrometric method
Source:Nuclear technology and radiation protection, 2010, 25, 1, 30-36
- Serbian Ministry of Science and Technological Development [142016, 141001]