Evaluation of 137Cs fallout from the Chernobyl accident in a forest soil and its impact on Alpine Lake sediments, Mercantour Massif, S.E. France

An assessment of radiation doses at an educational institution 57.8 km away from the Fukushima Daiichi nuclear power plant 1 month after the nuclear accident

“…High radioactive material contamination has been reported being found on lake bottoms and areas with pooled water or sediment after the Chernobyl nuclear power plant accident [26]. Our findings matched those previous results.…”

Behaviors and transfers of anthropogenic radionuclides (137Cs, 239+240Pu and 241Am) in a protected alpine wetland (France)

“…Similar activity ranges were measured previously in the same sampling site [18,19,21], with particularly high 137 Cs activities, coming from the Chernobyl accident ( 137 Cs/ 134 Cs and 90 Sr/ 137 Cs isotopic ratios) with a much lower contribution of the NWTs, and lower 239?240 Pu and 241 Am activities coming from the NWTs [18,19]. Again, these high 137 Cs activities can be correlated with the intense precipitations just after the Chernobyl accident and studies depending on the altitude were conducted in the Boreon Valley from 1,400 to 2,100 m above sea level with particularly high 134 Cs and 137 Cs activities detected around 1,600-1,800 m [13].…”

“…To calculate ''in-excess'' 210 Pb activities, ''in situ'' 210 Pb activities were obtained with deep sediments collected in the same sampling site. ''Constant rate of 210 Pb supply (CRS)'' model was not used since no determination of the sediment cumulated area density was achieved and this model was not considered in the previous studies [18]. 137 Cs, 226 Ra, 214 Pb and 214 Bi activities were measured by c-spectrometry using four HPGe detectors (EG&G Ortec Ò GEM-13180, GEM35, GMX-15185-PLUS and GEM100-95) with efficiencies ranging from 16 to 125 % and resolutions ranging from 1.72 to 2.15 keV at 1.33 MeV (FWHM).…”

“…The periphery of Nice was extensively studied shortly after the Chernobyl accident on 26th April 1986 [10][11][12][13][14][15][16][17][18][19]. As reported by Barci-Funel et al [12], anthropogenic RNs ( 131,132 I, 129m,132 Te, 103,106 Ru,134,137 Cs, 140 Ba, 140 La) coming from the Chernobyl accident were detected.…”

Interaction of the cesium cation with mono-, di-, and tricarboxylic acids in the gas phase. A Cs+ affinity scale for cesium carboxylates ion pairs

“…Their main sources were the fallouts of the Chernobyl accident in April 1986, and the atmospheric nuclear weapons tests from 1945 to 1980. Owing to the respective half-life of these radioisotopes, 137 Cs is still abundant, in particular in the upper layers of uncultivated soil, like in forest litter [2][3][4], and is found in fungi [5] and plants [6,7]. Cesium retention and transport in soil is primarily determined by the mineral fraction, especially clay [8], but the soil organic matter (SOM) may interfere, as shown, for example, by Dumat and Staunton and their coworkers [9,10].…”