Ecological half-life of radiocesium in white-tailed deer on the Department of Energy's Savannah River Site: What can a half century of field monitoring tell us?

Gaines, Karen F.; Novak, Peter M.; Novak, J. M.

doi:10.1016/j.jenvrad.2021.106654

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Effective and Ecological Half-lives1

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2022

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“…Differences have been observed between species and climates. For example, roe deer from central Europe was shown to exhibit ecological half-lives between 7-9 y [7], whereas white-tailed deer from the Savannah River Site exhibited much longer ecological-half-lives of 23.15 y [41]. For wild boar, the variability is even more pronounced.…”

Section: Effective and Ecological Half-livesmentioning

confidence: 99%

Exemplifying the “wild boar paradox”: dynamics of cesium-137 contaminations in wild boars in Germany and Japan

Berendes

Steinhäuser

2022

J Radioanal Nucl Chem

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Wild boars (Sus scrofa) are notorious for accumulating high contamination levels of 137Cs in their meat. Publicly available data of 137Cs contamination levels in wild boars from 2011 to 2019 were used to determine some radioecological characteristics in Germany (affected by Chernobyl-fallout, 1986) and Japan (affected Fukushima, 2011). The effective half-life of 137Cs in wild boar meat was much longer in Germany (7.3 y) than in Japan (2.6 y), respectively. Wild boars in Germany thus show much more persistent contamination levels than other game or forest animals. This unusual behavior has been termed “wild boar paradox.” In German wild boars, the data sets reveal a distinct geographical and seasonal dependence with higher activity concentrations in winter than in summer. In Japan, contamination levels only exhibit a distinct decline behavior.

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Section: Effective and Ecological Half-livesmentioning

confidence: 99%