Uranium contents in plants and mushrooms grown on a uranium-contaminated site near Ronneburg in Eastern Thuringia/Germany

摘要: Uranium concentrations in cultivated (sunflower, sunchoke, potato) and native plants, plant compartment specimens, mushrooms, grown on a test site within uranium-contaminated area Eastern Thuringia, were analyzed compared. This belongs to the Friedrich-Schiller University Jena is situated ground of former but now removed uranium mine waste leaching heap. For determination U biomaterials, saps samples squeezed out by using an ultracentrifuge, after that, remaining residue measured, ICP-MS. The study further showed that observed mushroom fruiting bodies sap always higher than their associated solid sample. Also, it was found detected concentration root above biomass, e.g., shoots, leaves, blossoms etc. highest measured with almost 40 ppb body roots butterbur. However, plants mushrooms collected this lower surface soil water site, indicating under encountered natural conditions, none studied species turned be hyperaccumulator for uranium, which could have extracted sufficient amounts soil. In addition, samples, despite being sensitivity limit, proved too low—in combination presence fluorescence quenching substances, iron manganese ions, and/or organic quenchers—to extract useful signal, helped identify speciation plants.