Abstract
Environmental radionuclides (40K, 137Cs, 210Pb, 226Ra) were determined in soils under semi-arid stands, a transition area from thorn to deciduous forest in El Angolo, and heath stands in the Alto Mayo in Northern Peru in order to elucidate their activity level in soil, and to trace underground environment in remote areas of little anthropogenic intervention. Anthropogenic 137Cs was only found in the uppermost portion of the soils in small amount, whereas the 210Pb activity was exceptionally high at the soil surfaces in a tropical stand of Alto Mayo. The results suggest a fallout nuclide, 210Pb, having been transported from local source(s) not to be specified yet.
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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License ( https://creativecommons.org/licenses/by-nc/2.0 ), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Fujiyoshi, R., Satake, Y., Sato, T. et al. Natural and anthropogenic consequences of tropical forest soils in Northern Peru using environmental radionuclides as radiotracers. J Radioanal Nucl Chem 279, 509–518 (2009). https://doi.org/10.1007/s10967-007-7308-2
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DOI: https://doi.org/10.1007/s10967-007-7308-2