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Mobile Forms of Radionuclide 137CS in Sandy Soils in Northeastern Poland
K. Niesiobedzka
 
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Institute of Environmental Engineering Systems, Warsaw University of Technology, Nowowiejska 20, 00-653 Warsaw, Poland
 
Pol. J. Environ. Stud. 2000;9(2):133–136
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ABSTRACT
Mobile forms of radionuclide 137Cs in different soils (natural pastures) of northeastern Poland was evaluated. An attempt was made to show if and what mobile forms of 137Cs is related to different soil properties. For this reason 108 soil samples from 0 to 10 cm in depth were measured for mobile forms of 137Cs activity and analysed for clay fraction, pH-value, exchangeable potassium (Kex.), exchangeable calcium (Caex.), magnesium (Mgex.), sodium (Naex.) content, organic matter and organic carbon content (C org.), cation exchange capacity (CEC). Samples of soils were collected in the period from June 1995 to July 1996. The radiocaesium and mobile forms of 137Cs activity were determined by gamma spectrometry. The mobility of 137Cs was studied by means of sequential extraction. Mobile forms of radionuclide 137Cs were related to physicochemical parameters of soils.
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