![]() Monte L (1998) Predicting the long term behaviour of Sr-90 in lacustrine systems by a collective model. Monte L (1997) A collective model for predicting the long-term behaviour of radionuclides in rivers. Miro C, Baeza A, Madruga MJ, Perianez R (2012) Caesium-137 and Strontium-90 temporal series in the Tagus River: experimental results and a modelling study. Matsuda K et al (2015) Comparison of radioactive cesium contamination of lake water, bottom sediment, plankton, and freshwater fish among lakes of Fukushima Prefecture, Japan after the Fukushima fallout. Wash-off of Sr-90 and Cs-137 from two experimental plots established ln the vicinity of the Chernobyl reactor. Konoplev AV, Bulgakov AA, Popov VE, Popov OF, Scherbak AV, Shveikin YV, Hoffman FO (1996) Model testing using Chernobyl data.1. ![]() International Atomic Energy Agency, Vienna IAEA (2010) Handbook of parameter values for the prediction of radionuclide transfer in terrestrial and freshwater environments. Hesthagen T, Heggenes J, Larsen BM, Berger HM, Forseth T (1999) Effects of water chemistry and habitat on the density of young brown trout Salmo trutta in acidic streams. Hakanson L, Sazykina TG, Kryshev II (2002) A general approach to transform a lake model for one radionuclide (radiocesium) to another (radio strontium) and critical model tests using data for four Ural lakes contaminated by the fallout from the Kyshtym accident in 1957. Ganzha C, Gudkov D, Ganzha D, Klenus V, Nazarov A (2014) Physicochemical forms of Sr-90 and Cs-137 in components of Glyboke Lake ecosystem in the Chornobyl exclusion zone. įukushima T, Arai H (2014) Radiocesium contamination of lake sediments and fish following the Fukushima nuclear accident and their partition coefficient. Pu, Ra, Ru, Sb, Sr and Th-implications for uncertainty analysis of models simulating the transport of radionuclides in rivers. Ĭiffroy P, Durrieu G, Garnier JM, Cs I, Mn (2009) Probabilistic distribution coefficients (K(d)s) in freshwater for radioisotopes of Ag, Am, Ba, Be, Ce, Co. Geological survey of Norway (NGU), Trondheim, Norwayīrown JE, Alfonso B, Avila R, Beresford NA, Copplestone D, Hosseini A (2016) A new version of the ERICA tool to facilitate impact assessments of radioactivity on wild plants and animals. īaranwal V, Ofstad F, Rønning J, Watson R (2011) Mapping of Caesium Fallout from the Chernobyl Accident in the Jotunheimen Area (Report 2011.062). In the calculation we took into account the time the caesium takes to move between these two media.Andersson P et al (2009) Protection of the environment from ionising radiation in a regulatory context (protect): proposed numerical benchmark values. ![]() ![]() Distribution coefficients were evaluated in order to compare the radionuclide concentrations in water and sediments. Instead, the values were related to the sediment type and its particle size. However, there was no dependence of the caesium concentrations measured in the sediments on the proximity to the source. A concentration gradient of caesium was observed in the water, with the maximum values occurring at the sampling sites near the ANPP. The Almaraz Nuclear Power Plant (ANPP) is the radioactive release source closest to Portugal. There are three nuclear power plants, along the Spanish section of the river that might be sources of radioactive contamination. In the two regions under study the water flow is completely regulated by a chain of dams. This river has its source in Spain, and of its 1100 km length about 230 km are in Portugal, 43 km serving as a natural frontier between the two countries. We have quantified the caesium-137 in surface waters and sediments in both the Portuguese and the Spanish sections of the Tagus River over six years. Instituto Tecnologico e Nuclear, Departamento de Protecçao Radiologica e Segurança Nuclear, Estrada Nacional 10, 2686-953 Sacavém Codex, Portugal Universidad de Extremadura, Facultad de Veterinaria, Departamento de Fisica, 10071 Caceres, Spain
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