Sources contributing to radionuclides in the environment - with focus on radioactive particles.- Mobility and bioavailability of radionuclides in soils.- The influence of edaphic factors on spatial and vertical distribution of radionuclides in soil.- Modelling speciation and distribution of radionuclides in agricultural soils.- Radiotracers as a tool to elucidate trace element behaviour in the water-sediment interface.- Uptake and retention of simulated fallout of radiocaesium and radiostrontium by different agriculture crops.- Root uptake/foliar uptake of radionuclides in natural ecosystem.- Assessment of radioactivity in forest and grassland ecosystems.- Terrestrial environmental dynamics of radioactive nuclides.- Biotransformation of radionuclides: Trends and challenges.- Methods of decrease of radionuclides transfer from soil to agricultural vegetation.- Bacterial diversity in clay and actinide interactions with bacterial isolates in relation to nuclear waste disposal.- Analysis of radionuclides in environmental samples.- Uncertainty analysis and risk assessment.