Abstract
Experimental data of caesium and ruthenium radioactivity in chosen parts of forest ecosystems in Finland and Southern Poland are presented and compared. Measurements were performed with a low-background γ-spectrometer coupled with a Ge/Li/ detector. The maximum caesium-137 activity in litter from Poland is 2.5 kBq, in that from Finland 3.9 kBq, in spruce needles it is 0.4 kBq /Poland/, 0.9 kBq /Finland/ and in fern leaves it is as high as 15.9 kBq per kg of dry mass in one sample from Poland.
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Jasińska, M., Kozak, K., Mietelski, J.W. et al. Radioactive contamination of the forests of Southern Poland and Finland. Journal of Radioanalytical and Nuclear Chemistry Letters 146, 1–13 (1990). https://doi.org/10.1007/BF02199267
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DOI: https://doi.org/10.1007/BF02199267