background: a field study on the transfer of primordial radionuclides 238u, 232th, 40k and fallout radionuclides 210po in different plant species in tropical forest of western ghats environment is presented. material and methods: the top storey, second storey, shrubs and epiphytic plant species were chosen and concentration of these radionuclides in plant and soil were measured by employing gam...

Radionuclides and heavy metals/metalloids content in soils shore sediments of Al-Negila area (Matrouh, Egypt) were determined to assess the associated environmental risks. A total 46 soil sediment samples collected analysed for natural man-made radionuclides (238U series, 232Th 40K 137Cs) (Al, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, Mn, Ni, Si, Sr, Zn, Hg). Within study area, are mainly calcareous with ...

The inventories of 137Cs (503 ± 34 Bq.m?2), 241Am (11.3 1.2 241Pu (33.7 3.4 238Pu (6.82 0.87 Bq.m?2) and 239+240Pu (113.0 5.9 sum 239Pu (100 11 240Pu (14.5 1.7 in the Gambier archipelago (23°S) French Polynesia, are well higher global fallout at this latitude, unequal proportions for different radionuclides. (240Pu/239Pu)AR (AR: atomic ratio) 0.0394 0.0062, (241Pu/239Pu)AR (2.03 0.39)10?4, conf...

Immediately after the Fukushima nuclear power plant accident, a team of 40-50 researchers at the Graduate School of Agricultural and Life Sciences at the University of Tokyo began to analyze the behavior of radioactive materials in the fallout regions. The fallout has remained in situ and become strongly adsorbed within the soil over time. 137Cs was found to bind strongly to the fine clay, weat...

over the past decades, the fallout radionuclides 137cs, 210pbex and 7be are increasingly being used to quantify soil erosion and sedimentation rates. although studies using 137cs and to some extent 210pbex are now well-documented, there is a need for further work aimed at exploring the use of 7be, particularly in arid and semi-arid areas. investigating soil erosion processes occurring over shor...

OBJECTIVE To investigate childhood cardiac arrhythmia and chronic exposure to caesium-137 (137Cs) resulting from the Chernobyl accident. DESIGN Prospective cross-sectional study using exposed/unexposed design conducted in the Bryansk region from May 2009 to May 2013 on children selected on the basis of 137Cs soil deposition: control territories ([137Cs]<37 kBq per square metre, where children...

The depth distribution of 137Cs in an Austrian spruce forest stand was investigated in soil profiles sampled in thin layers (2 cm) and in pooled soil samples over an area of 200 ha. The 137Cs concentrations both from Chernobyl and global fallout decrease exponentially with depth. Forty-six percent of Chernobyl-derived caesium and 26% from global fallout are still to be found in the litter layer...

Intensive farming is a primary cause of increased sediment and associated nitrogen (N) phosphorus (P) loads in surface water systems. Determining their contributing sources, pathways present major challenges the high-intensity agricultural catchments. Herein, we quantify sources magnitude total N P from different using novel application compound-specific stable isotope (CSSI) fallout radionucli...

Mercury and radionuclides (natural U and its decay series products and artificial 137Cs) were measured in sediments of the Ka{tela Bay (eastern Adriatic coast) in the vicinity of a former chloralkali plant. The depth distributions of radionuclides and mercury revealed that sediments in front of the factory represent a mixture of natural sediment and coal ash originating from the coal used in th...

S u m m a ry : Previous studies have demonstrated that lichens can accumulate high amounts of radioactivity. Because of their long life expectancy they are suitable and inexpensive biological detectors of the nuclear fallout. In this study, liehen samples were collected from diffe­ rent locations in Austria over a period of more than 15 years. Samples were taken before, immediately after and a ...