Cumulative deposition of 137Cs, 238Pu, 239+240Pu and 241Am from global fallout in soils from forest, grassland and arable land in Bavaria (FRG)

Radiocaesium fallout behaviour in volcanic soils in Iceland

“…In Chile, based on 29 soil samples, a regression coefficient of 0.79 was obtained between radiocaesium deposition and precipitation (Schuller et al, 2002). In countries with other soil types, such as Germany (Bunzl and Kracke, 1988); Montana, USA (Arnalds et al, 1989); Canada (Blagoeva and Zikovsky, 1995) and Korea (Lee and Lee, 1997), positive correlations have also been reported. The regression coefficients (r 2 ) from these studies generally range between 0.6 and 0.8.…”

Distribution of fallout radionuclides (7Be, 137Cs, 210Pb and 239,240Pu) in soils of Taiwan

“…Among the various tracers, 137 Cs is probably the most extensively studied, which is either used alone (Ritchie and McHenry, 1990), or used in conjunction with 210 Pb (Walling et al, 1995;Wallbrink and Murray, 1996), 239,240 Pu (Price, 1991), 90 Sr (Konshin, 1992a), 7 Be (Burch et al, 1988;Walling et al, 1999), or other radionuclides (Bunzl and Kracke, 1988). Such studies are based on the known sources and input functions of fallout radionuclides in question and the basic assumption that observed nuclide inventories (also termed ''areal concentrations'' or ''cumulative deposition'') in undisturbed soils (i.e., without erosion and deposition) are dictated by their cumulative fluxes over time.…”

Distribution of 137Cs in surface soil of Fraser’s Hill, Pahang, Malaysia

“…This also has a side effect of redistributing 137 Cs adsorbed onto fine soil particles out of the area through water erosion. Caesium-137 fallout is rapidly and strongly adsorbed by fine soil particles, particularly clay minerals and humic materials [7][8][9].…”