The bacterial, fungal and archaeal communities were characterized in top soil and sediment samples of a former pilot-scale uranium mine, Paukkajanvaara, located in Eno, Eastern Finland, using amplicon sequencing and qPCR. Soil and sediment samples were in addition analyzed for radium (226Ra), sulfate (SO42−), nitrate (NO3− ) and phosphate (PO4 3−) concentrations. New bacterial strains, representing Pseudomonas spp., were isolated from the mine and reference area and used in laboratory experiments on uptake and leaching of radium (Ra). The effect of these strains on the sulfate leaching from the soil samples was also tested in vitro.
Science of the Total Environment 686 (2019) 619–640